I am now going out to find and buy a great 2 channel amp either and integrated or pre-amp / poweramp combination to give me better 2 channel sound than what the current Sony can deliver. But if you notice that it starts getting loose when you flip it, or doesn’t always make a good connection, it’s best to replace the 4PDT switch at once. Endless hours of experimentation, professional work and personal investment in Home Theatre, Hi-Fi, Smart Home Automation and Headphones has come to this. And I'm with astrallite on that generation of Yamahas -- I have a 350 receiver now retired with failing input … In that scenario, the connections from the amp binding posts to the outer rows of the first switch remain the same; the first switch’s connectors marked SP XX in the above table (the middle row) are connected to the corresponding connectors in the second switch, and the outer rows of the second switch are connected to speakers binding posts for two sets of speakers. And you don’t need to build, wire or blow anything up! Using the same principle that you’ve described for 2 amplifiers and 1 pair of speakers, Set up is easy and it does what it says on the box. That’s the potential problems I can think of from the top of my head. Amp A and Amp B are connected to the inputs of switch 1. If each speaker has an impedance of 8 ohms or more, then you can generally connect them in parallel. Fortunately, there have been a few companies come to the rescue in making switches for this exact purpose. I understand that in the case of the surround receiver speakers are connected to front and rear outputs, and not to front A and front B outputs (that would be a very different connection and actually similar to using a regular stereo amp). If you do that directly, simply run speaker cables from both amps to your speakers – definitely not. My dream is to be able to select an amp (or set of mono blocks) to listen to on my main system from a central wall mounted switch box. How does this work for a system that has say a subwoofer for the home theatre side. I guess what I am asking is if one were to do an A/B test on amplifiers with the same source and speakers, using your switch would still require the tester to manually switch interconnects (linking source to amp), right? If you switch to speakers "A+B" with only one set of speakers attached and you get no sound, this is the set … Hello Rafal. Is it possible to use a speakers selector switch in reverse for this? 2. If I build this box to use, only one amplifier will be powered on at any time. Given that there are 1 > 2/4/8+ speaker switches for peanuts, I simply cannot believe that there is no commercial solution available at an appropriate price for the reverse. Amazon sells the Tatoko Copper Plated 63A Double Pole Electric Brake Safety Knife Switch DPST for $13.99. 2 sets of mains - 16 ohm speakers. Or actually 2 switches like mine to switch between the amps and one cheap, ready-made speaker selector, because switching between speakers is a less sensitive issue and you can have both pairs of speakers playing at the same time and, unlike amps, they can have common ground. I’ve got a very nice Hi Fi amp plus an AV amp and rather than having 2 sets of speakers, I just want 1 set with both amps powering them with some kind of switch isolating the 2 amps. For those who love a soldering iron and some DIY – this sounds like a great solution. The surround receivers actually works as two separate amps (front speakers amp and rear speakers amp). Hi. ... Four Crown ce 1000 450 wpc pro music gear amplifier . Your email address will not be published. Peavey Electronics Corp. is one of the largest makers & suppliers of musical instruments, amplifiers & professional audio systems worldwide. Agree Steve. We broadcast 24/7 but being volunteers there are many hours when the mixer could be powered down and the music signal could go direct to webcast, but it is the switching that bothers me. #5 You cannot hook two amps to a single set of speaker terminals because the amps will see each other and usually blow up, blow fuses, or go into protection. Good luck! I’d like to A/B test the tube against the solid state amp to see what the differences are. An enclosure In the future when I’ve won the lottery I’ll have a room that gives me a reason to use the TC-7220. But having an electrical background, I realized that all you really need is a 2 pole, double throw, knife blade disconnect switch. So, again, is it safe to connect two amps to one set of speakers? As far as I recall, we used that or 15AWG. Similar to a passenger on a small motor bike: add another passenger and the load the bike needs to carry is doubled, but most bikes will cope with two passengers.However adding more than two speakers will normally overload the amplifier. Of course, toggle switches can also be used for this purpose. Lol. So the the same switch box as you describe function for this set-up? I don’ t know if you’re still updating this helpful thread. Hello. The most expensive part was the speaker wire binding posts – the white ones cost $12. A 4PDT switch has 12 connectors, usually 4 connectors in 3 rows. It’s not that complicated. Sony SB-5335, Pioneer U-24 Onkyo u30 There’s about two dollar’s worth of parts and technology in there. It has a rich, full, bottom end that I know the Q Acoustic Concept 40’s would sound amazing with. I understand that the subwoofer is not important because you only use it with the surround receiver and you only need to connect speakers A and B to two receivers. In this application, the two outer rows are for amps. I know there is something about tube amps I need to be careful of - … My concerns were one of multiple connections in the music chain and a believer of as few as possible … wire connection in the holes for this in each jack. Summary of Connecting 2 speakers. Is it possible to have them both hooked up at the same time? I was going to buy the Specialty AV SP-71 for $59.99 at Amazon to separate my home theater amp and stereo amp from 1 set of speakers. Common ground between channels is not a problem with turntables, and you can use the 3rd RCA socket to connect and switch the grounding wire. You can select only one position at the same time. When you say Y -splitters, do you mean a switch? Have a set of speakers in your office and one in the lounge and change the speakers using the switch, and the amps as you like. I’m guessing there simply isn’t any workaround, which is unfortunate. We also carry many turntables and phono-cartridges and are quite adept at set … The Dynavox AMP-S available here seems to only be available in the UK. 2 sets of mains - 8 ohm speakers. This isn’t the problem as I can switch the Yamaha HiFi amp to Direct and get unadulterated sound through the amp to the Q Acoustics. If wired in reverse, will any of this product accomplish the same as your build? Switch 3: 1 input, 2 outputs (this one can be ready made if all your amps can handle common ground and more than one set of speakers connected at the same time). The Sony, Technics and Sansui should be fine but I’d check for common ground just in case. The wire terminals have no problem tightly securing the speaker wire. Even if you think you’ll be extra careful and always remember to switch off one amp before switching on the other, and you actually are that careful, sooner or later someone else will try to listen to some music using your gear – and poof goes your nice amp. ... Add to cart. If you only use it a few times a year – sure, it’s much easier to build. If you do that, first check whether (and how) this dummy load affects the sound. Shop our selection today! You use both speakers A and speakers B at the same time with each receiver. a high powered or low powered tube amp. This is the one I chose as I don’t need anything fancier. If you use this type of switch box with tube amps then yes, to be on the safe side only one amp should be powered on at any time and it should be selected (with the switch box) before you turn it on to ensure that the amp is not on without load. Make Life Click publishes articles and reviews on Smart Homes, Home Automation, HiFi & Home Theatre, Headphones and Lifestyle Technology. 3 way switch has a ‘both off’ setting in the middle. $625 (bremerton) pic hide this posting restore restore this posting. 1. I looked at the photos of the inside and Dynavox AMP-S looks good, it has a different type of switch inside, but according to product description it does switch ground as well. The 4PDT switch itself stopped working, contacts inside got loose or broke. Currently I have a Sony Home theatre Amp (STR DN1060) 7.2 165 Wx7Ch amp. To bi-wire your speakers, first remove those jumpers and use two sets of speaker cables. This one can allow to select both speakers and have common ground if ALL your amps can handle that. BTW, our experience is that if you learn to listen for certain aspects of sound (like colouration, soundstage, clarity, detail, PRaT, etc. As far as power rating goes – higher is better, best to match or exceed your amp’s rated power per channel, definitely do not use anything below 10W. The main problems with all of them: quite rare, very expensive. But with switches of this type any change in sound should be minor or even inaudible. If you have more questions, drop me an email, and let me know when you’re done, I’ll be curious to see a photo of you switchbox (whether you build it or convert the one you’ve linked). I expect because most people are happy with one amp and one set of speakers. Thanks for this post At the cost of stretching your hospitality, are there any devices with more than 3 amplifier inputs? I have a question. If you short connectors you will fry your amp, so be extra careful. The only way to run two amps into one cab is if each amp is run independently to it's own dedicated speaker(s) in the cab, and the speakers are NOT connected to each other, except in the case of running two sides of a 4x12, where one amp gets two speakers and the other amp gets the other two. When my new amp arrives it will go on the right (switched) side. Required fields are marked *, +  It selects between Amp C and whichever amp has been selected with switch 1 (Amp A or Amp B). I need to connect both sources to my single pair of speakers. The cables from each amp are connected to the respective jacks for amp-A and amp-B via a bare Going to attempt to build one of these asap. You see, I only need to switch my amplifiers a few times per year. 2. I’d be more than interested in trying out anything you’re keen to manufacture. While these units might be basic and have low costs parts the main point is that they work. Which is exactly what we did here at AR. https://amzn.to/2TL0mgn May not look like stereo equipment, but will more than adequately do the job and there is absolutely no way you could connect the 2 amplifiers at the same time. no additional electronic wizardry was needed thus very minimal interference with the music signal. So, your solution is basically a simple patch panel. It comes from a brand called Specialty AV. Yup – if you like to build stuff and have the time – have at it for sure. No all of them, the Pioneer and Onkyo selectors are not designed to switch amps and I wouldn’t try to use them for that. (Referred to as bi-amping, tri-amping, etc.) Here’s how we built one of them. Don’t you think there should be a word of warning for those who want to use either of those switches to select between solid state VS tube amp.

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