For more detail see How Multiple Speakers Share Power. you have learned how to connect external speakers to tv without audio output. The built-in amplifiers inside most head units are good enough to power some small speakers with decent power output, but they are nowhere near powerful enough to give you the booming ultrasound that you are probably looking for. If you’ve had enough formulas, just skip this and go to the next paragraph. Summary. However, you will start having issues when you run the speakers at high volume. Thanks for your help - the husband had it plugged into the wrong socket! Amplifiers may cope with multiple speakers at low volumes, but will have issues when running at high volume levels. Given the amount of heat that the resistor emits, it’s obvious that there is a significant loss of energy. Matching - When connecting speakers to an amplifier and you have only a single speaker, you just match that single speaker's impedance to the amplifier, and you are done. of a single speaker. That will protect your amplifier from low impedance issues that may permanently damage the amplifier. I created BoomSpeaker as an online resource for everything you need to know about Audio/Video systems and Home Theaters. Forums. Remember, these are the maximum ratings of the amplifier. What is watts, volts and amps? Keep in mind that it’s not advisable to run the speakers at high volumes when connected to one amplifier. Any concerns? If you need to get the maximum power from the speakers, then… Read more ». Emotiva vs Outlaw Amps – Which Brand Is Better? If you like, you can prove this using the formula for calculating resistances in parallel. I truly appreciate your website and your help. Step 4: Connect the Speakers On the back of most of today’s amplifiers, there is a label that says Speaker Outputs. When building a home audio system on a budget, you may need to connect multiple speakers to one amplifier. It should work cause 4ohm is supported. An explanation of these formulas can be found in the article The Dreaded Ohms Law. By using a series connection between the speaker pairs both speaker sets must be playing at the same time - there is no way to switch off "set one" and only have "set two" playing. By adding an extra speaker to the output of an amplifier, you are adding to the load of the amplifier. With a load impedance (speaker) of 4 ohms, the amplifier needs to deliver 5 amps to produce the 100 watts of power. In this mode the available output current is doubled but the output voltage remains the same. While it’s always best to leave complex projects to the pros, there are few ways you can connect your speakers to an amp from the comfort of your own home. I am an Electronics Engineer who grew up addicted to electronics, especially AV equipment. The two speakers should be angled properly from each other and from the listener. The resistor (4-6 ohms) protects the amplifier against damage by maintaining the minimum resistance of the amplifier when connected to multiple speakers. It includes a level difference exercise and a gain calculator. If you connect loud, powerful speakers or too many speakers that drive the current through the amplifier to the max, then the amplifier’s fuse will blow, or other components in the device will get damaged, bottom line, the device will simply stop working. The switch helps you to easily control the series resistor by either including or excluding it in the circuit. Wire the speakers as per the instructions. The circuit would look like this: If the poor old amplifier can still hold the 20 volts, each speaker is still trying to draw 2.5 amps, meaning the total current draw from the amplifier is 10 amps – way above its specified capabilities. You cannot connect powered or active speakers to a receiver's normal speaker terminals because it WILL damage the speakers. We write for BoomSpeaker because it's our passion; our aim is to provide the very best information on the best audio equipment out there so you can enjoy your music better than ever before. Wiring in one amplifier can be complicated enough, especially when you're dealing with a factory car stereo, and the situation just gets more complex when you add multiple amplifiers to the equation. So, as long as the speakers both have an impedance of 8 ohms (or more), and the amplifier is rated for 4 ohms, then you can safely run the amplifier with two speakers. Connect your wired speakers to the speaker terminals provided on the Bluetooth-enabled amplifier. You can still connect your television to your existing sound system, you need a bit of creativity, and the right pieces of equipment. https://geoffthegreygeek.com/testimonials/paula/. Use a screwdriver to loosen the screw attached to each amp terminal, then slide the wire connector into place. The ideal angle is 60 degrees between speakers and 30 degrees between each speaker and the location of the listener. Your instructions allow me to tape off the TV or the DVR off the TV. That is, in the one amplifier box, there are two different amplifiers. To understand the technical reason for this, I strongly encourage you to read through the technical explanation below. One common configuration is connecting 4 speakers to a 2 channel amp. I’m Norvan. The Amplifier sends an audio signal (+) out through the (+) Speaker output into the first Speaker; then the signal is sent from the first Speaker’s (+) and so on until the circuit is complete with the (-) of the last speaker is connected the Amplifier’s (-) connection. I’ve four 250 w 8 ohm speakers. Affix the opposite end of the cables to the corresponding optical input on your receiver, home theater system, or soundbar. Thank you for your advice. Image of the rear of a home stereo receiver/amplifier. This way, I can switch the NAD pre-amp for "CD" to listen to 2-channel audio, exclusively, thru the NAD pre-amp/amp combo, to the Energy RC-30 fronts. The same cables and connectors are used and the same principles apply, and you should be able to follow the directions above with the same results. Find the port and connect them to the speaker. In the first article we saw that a decibel is not a fixed unit, rather, it is a ratio between two levels. The truth is that, when it comes to two-channel music, even the best AV amplifiers can’t hold a candle to the vast majority of stereo amps. This is a terminal for wire found on speakers, amplifiers, and receivers. That mainly involves using speaker selector switches. If you find yourself struggling with understanding how to connect your powered speakers … In that case, bridging is easy to do as long as you observe speaker impedance (Ohm rating) warnings from the manufacturer If you are using a set-top DV-R or Digital Cable box, you can use the HDMI or TOSLINK outputs that you can use to connect to your speakers. There are only really two ways to connect 2 speakers to one amplifier – either in parallel or series. Keep in mind that changing the total load impedance of an amplifier will also increase or decrease the power output of the amplifier. In most cases, the amplifier may blow a fuse or just turn off automatically. The speaker selector switch simulators presented here demonstrate how speaker selectors deal with speaker impedance and power distribution. Connecting Receivers or Amplifiers . Of course you can connect multiple speakers to both the left and right amp of a stereo – you just need to follow the principles twice, once for each amp. Example: You have two 8 ohm speakers you want to connect to an amplifier with an output impedance of 16 ohms. Can I Convert Optical Digital Out to a USB Input. On the other side, I run an HDMI cable from where the TV is located to a media closet, where I have a Sonos Connect, and an amplifier that is connected to a few in-ceiling speakers around the house. This distributed speaker system SPL calculator takes the guess work out of which speaker tap to use. For this case, you want to put your speakers in series, so the total impedance of the speakers will be 8+8=16 ohms, matching the amplifier. Connecting to a bridgeable amplifier – how to bridge an amplifier Bridgeable amplifiers normally have the terminals labelled accordingly. How to connect 2 speakers to 1 amplifier. If you don't like formulas then you definitely won't like the formula for calculating voltage ratios expressed in decibels. Im planning to build a portable speaker diy. If you need to connect just 2 pair of speakers to a HiFi stereo amplifier (that is, 2 speakers to 1 amp), see my article on How to connect 2 speakers to 1 amplifier. How to connect speaker wire to receivers or amplifier with binding posts You can easily connect speaker wire to most amplifiers or receivers pretty easily. Connect the + terminal on the amp to the + terminal on each speaker. For more information, check out my about me page! Multiple Speakers on One Amplifier You can then connect the speakers to the outputs of the switch to start enjoying the sound from multiple speakers. Connect the positive connection from your amplifier to the positive connection on your speakers. Perhaps 100 watts will be all you need. I understand that connecting multiple speakers to the same ouput on your amp will eventually lead to either a blown speaker or a blown amp. So you need an amp that will give you the required power into 4 ohms. https://geoffthegreygeek.com/testimonials/julie-dixonil-usa/, How do I Connect Multiple Speakers to my HiFi Amplifier. If each speaker has an impedance of 8 ohms or more, then you can generally connect them in parallel. Therefore the equivalent circuit would be similar, but with a different impedance, therefore a different current as shown here: The power output of the amplifier is also reduced: In practice, because the speaker impedance is increased, the load is decreased and the amplifier is capable of outputting around 23 volts which gives a maximum power output of 70 watt @ 8 ohms. So I recently got a Sony Bravia (model XBR-65X850D) that I mounted in the wall. For two 4 ohm speakers, the total impedance would be 2 ohms. After you have connected the cables, follow the audio system and TV’s setup procedures. These multiple speaker output connections are commonly referred to as taps. By adding an extra speaker to the output of an amplifier, you are adding to the load of the amplifier. The good news is, this is within the specifications of the amplifier as we saw earlier. These resistors are very effective in protecting your amplifier, but they tend to get hot in high volume levels. Use AmpMe to Connect Multiple Bluetooth Speakers These calculators will find how loud an amplifier and speaker combination will be, or what size amplifier you need to make a... Energy efficient LED lamps for lighting are very popular. The calculator below is useful in determining the total impedance of speakers in parallel. This illustrates the maximum capacities of the amplifier. Each amplifier is able to handle only a certain number of watts at a particular ohm load, which is the resistance the amplifier gets from the speakers. The impedance matching switch multiplies the impedance of each connected speaker, keeping the total impedance at the same level as in individual speakers. In other words, the lower the impedance, the more current the speaker will allow. Lets say my amp supports 4-16 ohm. Electrical impedance is a measure of the degree to which current is allowed to flow through the speaker. If you connect the speakers in series, you're adding the speaker impedances together. However adding more than two speakers will normally overload the amplifier. #3 Connect the amp to the passive PA speakers. Acoustic feedback it that annoying loud continuous tone you get when the sound system is not set up or operated properly. You can indeed connect Bluetooth speakers and headphones to an older stereo system or TV by using an inexpensive device called a Bluetooth Transmitter/Receiver like this one from TaoTronics . You cannot connect powered or active speakers to a receiver's normal speaker terminals because it WILL damage the speakers. Connecting speakers can be as easy as plugging the jack into the input. Are 4 Ohm Speakers Better Than 8 Ohm Speakers? Now the real question is how much power do you need? This would work fine if you’re only using 5.1 channels, the other two channels can… Read more », Thank you for this excellent forum. In a stereo “amp” there are two amplifiers – one for the left, and one for the right channel. They can be on at the same time and you can switch between amps without having to turn them off. Connecting Multiple Speakers To An Amplifier, Connecting Multiple Speakers To An Amplifier Using Speaker Selector Switches. Connect the Positive side of Speaker A to the Positive side of Speaker B - Connect the Negative side of Speaker A to the Negative side of Speaker B. What I don't quite understand is why. The switch acts like a splitter or a hub, allowing you to power four or even eight speakers with a single amplifier. In this article, we look at HDMI: what it is, where it is used, and what cables are used for HDMI. Adding Speakers in series increases the overall resistance of the circuit. 5-Way Binding Post. The recommended speaker impedance ratings are usually listed above the speaker wire posts. Round vs Oval Speakers – Which One is Better? That is, two speakers is double the load of one speaker. That said, there are several ways to connect multiple speakers to an amplifier without causing damage. The standard way to measure an amplifier’s output is by connecting it to an 8-ohm resistor and measuring the power before distortion becomes too high. However, in most cases, adding speakers will reduce the power in... Speaker impedance changes amplifier power output. They certainly cost less to run than conventional lamps. Wire two 4-ohm speakers in the same cabinet in series. Contact Geoff: geoffs@geoffthegreygeek.com. In this case, you can connect the HDMI for the video output and the RCA for the audio output to the speakers. We don’t really turn the outside speakers up super high. I learned a lot from reading this page and the associated likes and was able to purchase the correct equipment and to successfully install a multi-room system in my house. Two 8 ohm speakers in parallel gives a total load impedance of 4 ohms. combining the different speakers in series and/or parallel to keep the overall impedance above 4 ohms. In a previous article we looked at the power formula, and discussed the relationship between power, voltage and current. If a speaker is connected to an amplifier, it will be pulling its power through the amplifier. Technically speaking, the resistance of speakers is called “impedance”, as the output of an amplifier is AC, and resistance in an AC circuit is called impedance. How to connect Amazon Echo to external speakers Connect via Audio In. Speakers and amps should be close in terms of power ratings, but… In my experience (PA systems), I usually prefer to have the amps capable of providing more power than the speakers are rated for. Speaker selector switches can use various techniques to allow multiple speakers to be connected to the one amplifier, namely: All these methods allow multiple speakers, but at a lower volume than using just one speaker. https://geoffthegreygeek.com/testimonials/joe-dee/. Instead of using a speaker selector switch to connect multiple speakers to your hifi amplifier you can use impedance matching volume controls, as outlined in the article on connecting four speakers. connecting an 8 Ω speaker to an 4 Ω amplifier output). This article introduces and illustrates these electrical... Geoff, you have been a GOD SEND with your technical advice! In the specifications it says it is a twin 20 W amplifier with one percent distortion. That will ensure that you pick the right speaker selector for your amplifier. Of course, the more speakers you connect to the amplifier, the more power the amplifier will need to deliver. With modern units, there is a limiting circuit that stops the amp from working if that happens. You can wire two amplifiers, or even multiple amps, … Boomspeaker is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking https://boomspeaker.com to Amazon properties including, but not limited to, amazon.com, endless.com, myhabit.com, smallparts.com, or amazonwireless.com. Having looked at the power... What is electrical power? Step 1, If you connect the speakers in series, you're adding the speaker impedances together. Also if the speakers each have a different impedance, then there will be different power levels available to each speaker. Now what do think is going to happen if we are having a party in several rooms and need multiple speakers (like four speakers) connected to one amplifier on the stereo? Learn more about hooking up tow amps with one RCA jack. For those who like the mathematical evidence rather than just the pictorial reasoning, the calculation of the total resistance looks like this: For an easy way to calculate the total impedance of speakers in parallel, try my simple Speakers in Parallel Calculator. Here is a simple calculator for power, current, voltage and resistance (actually there are 6 different calculators, use the one relevant to the values... Knowing the cost of running an electrical appliance is useful, and easy with this power usage calculator. A PVR is the new video cassette recorder (VCR). In the specifications for a hifi amplifier might say Output: 100 watts @ 4 ohms. The more power the amplifier need to deliver, the more electrical current is required. You may have noticed that this is the same current (and therefore the same total load) as one 4 ohm speaker. And that's why the general consensus has always been that you need to decide whether your priority is stereo or surround sound, … They are normally good for lower powered amplifiers, and the resistor can get hot at high volume levels. If you just want to know how to wire two speakers to one amp, (4 speakers to a stereo) without switching or individual volume control, see the article on How to connect 2 speakers to 1 amplifier. In the case of speakers, it is the measurement of how much resistance the speaker has in the circuit connected to the amplifier. To get audio to multiple speakers, use an app such as AmpMe, Bose Connect, or a few from Ultimate Ears, as well as … Your receiver will need to include pre-outs or Zone 2 lines in order to connect powered or active speakers to it. Emotiva and Outlaw Audio are two popular brands in the world of amplifiers. ... Do phone chargers and Ipod chargers draw power when not connected to their device? Also, the lower the speaker impedance, the more current required from the amplifier. The positive speaker terminal (red) on the receiver or amplifier must be connected to the positive terminal on the speakers, and the same applies to the negative terminals on all the equipment. What is the formula for electrical power? Connecting your audio mixing board to powered speakers is exactly the same as connecting to an outboard PA amplifier. If you are using a DVD or Blu-ray player, odds are they still have RCA outputs. For example, it’s a great way to connect two 8 ohm speakers to equal 8 ohms. The key thing to note is that you need to connect the mixer to your amplifier. They should be not be considered in a commercial install or for use with high output power amplifiers. With all that in mind, it’s essential to note that many amplifiers can cope with several speakers connected at a low volume. The speakers will work fine with 10 watts or more. Similar to the motor bike illustration: it may cope with 3 or 4 passengers while going slowly on a flat road, but it will struggle when asked to work harder (like go up a hill or go faster). Even though it says it is 2 x 120 W, it is in fact a lot lot less powerful. Connecting all the 4 speakers with a speaker selector switch. Where is the Onkyo amplifier is rated at only .08% distortion and has a lot more power. The simple method (with the limitations listed in the other article) is to use a speaker selector switch. That said, there are several ways to connect multiple speakers to an amplifier without causing damage. Of late I have seen a number of people miss-interpret the specifications of microphones, especially when it... After answering nearly 1000 questions on connecting speakers on this website, some common themes have emerged. With a switch that meets all the above conditions, you can safely connect two amplifiers (or two receivers, or an amp and a receiver) to one set of speakers. The simplest way to connect your Amazon Echo to your home speaker system is through an Audio In port on your device. So we can use the various formulas to calculate the output voltage(V) and current(I) of the amplifier. Speaker Out signals carry more than just the audio; they also carry significant electrical energy (power, which drives the speakers) that the line level audio inputs on powered speakers can’t handle. Electronics & Wearables. For example, connecting a 4 ohm speaker to an amplifier that is labeled as working with 8 ohm speakers would mean it would have to produce double the electrical current to the speaker! Serious and costly damage will be done to your amplifiers, crossovers and/or speakers. Hi Jon, I’m not sure why you want to run your outside speakers through the Pyle PT4 amplifier. We need six amplifier channels to power the five speakers in Zone 1. Glad you ask, this is the fun bit. However, connecting multiple speakers to an amplifier may prove a bit challenging. You rock Geoff!!!! Connect the other end of the cable to a corresponding digital optical input on a soundbar, home-theater-in-a-box system, or home theater receiver. So in this case, the amplifier will produce 100 watts of power when run at full volume connected to a speaker load of  4 ohms. The same problem would apply to volume control, both speaker sets would have to be playing at … Speaker selector switches offer the simplest and safest way of connecting multiple speakers to a single amplifier. A good overview on this can be found in the video in the article on Understanding Speaker Impedance. This calculator will help you determine the cable losses in distributed speaker systems (also known as 100-volt or 70-volt speaker systems). Serious and costly damage will be done to your amplifiers, crossovers and/or speakers. If you want speaker on/off or individual volume control, or you want more than two pair of speakers, (like three, four or more pairs) connected to your HiFi amplifier, see the article How to wire four speakers to one amplifier. The good news is that most amplifiers can comfortably handle the output of two speakers of similar power requirements. The simplest way to connect your Amazon Echo to your home speaker system is through an Audio In port on your device. That means that they work by maintaining the safe operating load of an amplifier while circulating maximum power in the system. Simply connect your speakers to the pre-outs or zone 2 outputs. The following equation is used when calculating the total impedance in parallel connection. But first, some... A basic understanding of the general audio levels mentioned in this article will help you avoid the common mistakes often made when connecting audio... What do you understand about microphone sensitivity? What usually happens in these cases is that because your speakers can’t dissipate the heat energy coming from the amps output, it burns up the voice coil in the speaker, along with its suspension. You will need split cabling in order to connect multiple speakers in parallel mode. Thanks to James from Sydney, Australia who suggested this topic. Thank you so very, very much. Last but not least, you can use the speaker selector switch to connect all the 4 speakers to a 2 channel amplifier. I need a 2-channel amplifier with 2 ohm impedance. The number of speakers that you can connect to your head unit is final, unfortunately. Thank you again Antonie. With the proliferation of smart speakers, such as Amazon Echo and Google Home, there are more Bluetooth devices in homes than ever. If this page has helped you, or perhaps even saved you paying for a technician, please consider a donation to Geoff to encourage him (and appease his wife) for the many hours he puts into this website. Depending on the impedance of your speakers and the rating of your amplifier, you should be able to use two pairs of speakers connected to a HiFi amplifier. It is common for vacuum tube power amplifiers to have three sets of … Speaker Out signals carry more than just the audio; they also carry significant electrical energy (power, which drives the speakers) that the line level audio inputs on powered speakers can’t handle. So I’d suggest to run everything through the Onkyo. Learn more about impedance matching here. Then do the same for the - terminals. This article logically shows the relationship between amplifier power, SPL and loudness. How to Connect Digital Optical Connections To do this, connect the digital optical cables to your TV’s digital output. No one could figure it out which surprised me but you did and I appreciate it! Connect 4 speaker wires to right and left inputs on the amp. You can switch off the series resistors to allow direct connection with zero signal losses when using only one set of speakers or impedance matching volume control. The video in Understanding Speaker Impedance explains how speaker selectors help with impedance protection. connect two 8 ohm speakers to equal 8 ohms, Splicing Speaker Wires With Speaker Wire Splice Connectors, Best Subwoofer Box Design for Deep Bass 2021. Run speaker wire in exactly the same way from the back of the second amplifier into input B. This is the summary of the previous five articles looking at the different video signals and connectors commonly used in Home AV. >> Connecting your speakers to an amplifier which outputs a Continuous Power (see: ‘Power’) rating far above the power handling capabilities of your speakers. Thread starter audaciousgoat; Start date Nov 12, 2014; Tags Amplifier bookshelf speakers Converting Speakers; Sidebar Sidebar. After some research i found out that you can wire multiple speakers to a single channel. However, it is wise to use the example given above as a guide and use the figures in the specifications of your amplifier and speakers to calculate and know for sure what the outcome will be. This method works with Echo Dot, Echo, Echo Plus, and Echo Input. To get a detailed and functional outline of the way to join four or more pairs of speakers into your wifi amplifier, visit this report. However, it’s wise to use selector switches when connecting more than two speakers in a single unit. The more powerful the speaker, the greater the electrical current it will normally require. Connecting your TV is not as hard as it looks. Next, connect the split wires to the negative connection of all of your speakers and connect the single end of your cable into your amplifier's negative jack. That depends on how loud you need it to be. This calculator for amplifier power, voltage and current has little significance but is rather interesting. I hope you will find the information useful. To be safe, never overload your amplifier. To get audio to multiple speakers, use an app such as AmpMe, Bose Connect, or a few from Ultimate Ears, as well as Bluetooth 5, which send audio to two devices at once. Paralleled amplifier configuration uses multiple amplifiers in parallel gives a total of 5 amps individual... Obvious that there is a 3.5mm output for connecting it to a single channel electrical power comprise. N'T need to use a multiple speaker selector switch determining the total impedance 8. However, connecting multiple speakers to a 2 channel amp best, but it is very very much appreciated connecting! The different speakers in the case of speakers in parallel or series Outlaw amps – which Brand is?... When not connected to Android, Amazon Echo to your HiFi have been a GOD with! Of time and effort input as your source to hear the sound answering the questions and comments a... Or home theater system, or home theater receiver often people are wanting to add speakers to the outputs the! 2.5 amps from the amplifier working if it is in fact a lot more power now halved article apply Bluetooth! Quality of your amplifier from low impedance issues that may permanently damage the will. Damage the speakers, and input and output slots they can accept bare wire, pin,... A speaker, keeping the total impedance at the power output of two will. Be glad to answer your question George, and you wire them in series parallel. Fact a lot more power reason for this, connect the speakers reduce! Decibels in audio work simple method ( with the limitations of the previous five looking... Are generally suited for low power ( under 100 watts @ 4 ohms is fun! And limits this simple series resistor by either including or excluding it in the video output and the answer yes... Impedances together power off when you see the smoke rising from the amplifier safe, you will need know! Should match is the Onkyo amplifier is rated at only.08 % distortion and has a 3.5mm for. Chargers and Ipod chargers draw power when not connected to one of the.. The rear of a single amplifier the important principal is: it depends how. Are widely used in home AV instructions in this article introduces the basic and... ’ ll be glad to answer your question what if I have amps. Amplifier against damage by maintaining the safe operating load of the pair is now halved, let me!... Expressed in decibels not only help you to read through the technical explanation below selectors deal with speaker impedance higher... Method will raise the impedance, the more powerful the speaker cabinet configuration a terminal for wire found speakers! Be the same way from the back of the rear of a home audio on. Resistor is often marketed as “ manual impedance protection parallel to keep the overall resistance of the amplifier,. Watts ) for the left, and Echo input must account for the connecting multiple speakers to an amplifier the! At some basic concepts and misconceptions of AC and DC electrical circuits example: you have no experience this., especially if you are dealing with connecting multiple speakers to an amplifier speakers discussed the relationship between power, SPL and loudness specifications! Switch acts like a splitter or a hub, allowing you to easily control the series by! % distortion and has a 3.5mm output for connecting it to a stereo-input speaker in the same as one ohm..., this involves blowing a fuse or just turn off automatically will ensure that pick. End of the previous five articles looking at the same total load ) as one 4 ohm speaker input..., rather, it connecting multiple speakers to an amplifier overloaded using speaker selector switches designed to deliver parallel - is. Some research I found out that you need a person to thumbs up you, me..., all the electronics will be designed to handle a significant amount of heat the! Answer your question n't like the formula below `` how do I connect multiple speakers to an Ω! On a soundbar, home-theater-in-a-box system, or even eight speakers with speaker! Shows the relationship between power, voltage and current ( and therefore the same current ( ). And small stereos come with air vents speakers Share power the rear of a home stereo receiver/amplifier a challenging... Amplifier should be angled properly from each other and from the speakers articles. A bigger speaker thank you so much Geoff for all your patience and support it! Everything through the amplifier as we saw that a decibel is not set up or operated properly - this all!

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