But if you don’t want to spend $120 on a switch, you can built one yourself. It might have little or no effect (for example volume drop that can be easily corrected, you have to match volume of both amps anyway), but it might also alter the sound enough to make any A/B test pointless. All other standard return policy conditions apply.. Close I currently have breadboarded the same as recommended in the CD4053 design, but values recommended in my internet searches range from 2… I’m using the speaker outputs A and B on every amplifier. A tube amp just arrived and I’m looking forward to hooking it all up. Switch 3 selects speakers A and/or B. Hi Harry, We used them only because they were already sitting in our drawer. Hope this one does: My concerns were one of multiple connections in the music chain and a believer of as few as possible … If any of the above would work, could you please let me know advantages/disadvantages vs. yours and Beresford TC-7220? Using the same components? Contacts inside the toggle switch – they should be robust enough, the toggle switch we use is rated 10A 125VAC. That’s it all done. I decided to go with a simpler but less convenient solution. There are three problems with the majority of speaker switching boxes. Common ground is not a problem with turntables in most cases. But even if he confirms that ground is also switched, I would still test it before using. So, again, is it safe to connect two amps to one set of speakers? I think there is a good chance that the ground is switched in this one, but I can’t be sure without testing it. single switch and remove the second switch this would be the cheapest Just press a button to select between two audio/video sources. I could build something but do you know if there is any gear that does this already. That’s the simplest, cheapest, easiest to do solution that I can think of for your scenario. You use both speakers A and speakers B at the same time with each receiver. 3 sets of stereo speaker binding posts They can be on at the same time and you can switch between amps without having to turn them off. Are these contacts sufficiently robust enough to accomodate the electrical signal from the amp So thanks again for your very informative article . When you say Y -splitters, do you mean a switch? Connecting multiple speakers to one audio amplifier/receiver as speaker … It will be to select either speaker jacks. 2. This exact thing happened to a friend of mine. But can be a problem if it is an amp selector. 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. So I’m wondering if with all these connection points there is sufficient contact area at each position As a result, we had a nice box without one wall and with a round opening in the opposite wall. Tried that too, but it’s inconvenient if you switch often (I do). If you short connectors you will fry your amp, so be extra careful. This switch supports up to 200W for unparalleled audio quality. 2. – would you recommend it, I just came across this project for two amps to one pair of speakers switch box which I’m interested in building. The output of switch 2 is connected to the input of switch 3. I’m confused as to how to wire it . But whether such a switch degrades the signal could vary depending on the quality of the audio system (there could be an audible difference with a hi end system – just like with better and worse quality cables). If you can accept some hum, you can use something like Pro.2 SP 200 between line level sources and amps/receivers: http://audio-room.net/pro-2-sp-200-source-amplifier-switch-gallery/ 556 sold. Unfortunately that switch is quite expensive – it costs $120, which is a lot for a box with a few binding posts, passive switches and some wire. The most expensive part was the speaker wire binding posts – the white ones cost $12. If your amp does have to have a load to be operated safely (or this information is not available), a possible workaround is to use a dummy load – a resistor connected in parallel to the amp’s speaker outputs. But we’re on the right track now: what you need is indeed a switch – but it has to be a specific type of speaker level switch in order to accommodate 2 amps. If you do that directly, simply run speaker cables from both amps to your speakers – definitely not. £11.00. I think I would try to do something very old-school instead, a manual solution. And by “easier” I certainly don’t mean “easy”, plus an active switch has its drawbacks (interference). 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. Have you any suggestions? 2 receivers/amps, 2 pairs of speakers Utilizing Channels A & B. Once you’ve settled with a box or case, solder the jacks to the switch according to the diagram. – what would be the schema to make it. Connect your game console, VCR, DVD, cable box or other A/V device to your TV. Regarding my original question, I now see that I wasn’t too clear in how I put the question. To accommodate 3 amps and 2 pairs of speakers you can daisy-chain 3 switches made according to the same principle as my switch. In short: yes, converting that speaker switchbox should be doable, but it might not be easier or cheaper than building a switchbox from scratch. It wasn’t easy to catch it safely with these smallish screws, but doable. Could this used to use one turntable with two amps subbing RCA jacks? Is this what you meant by “splitter”? OK, my question is pretty simple but I want to make sure. The quality of components if as poor as can be expected, but there are no wires, so it should primarily affect the switch durability, not signal quality. 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. Also, depending on the enclosure you use, you might need tools to make walls, drill holes etc. Our switch was really abused, we do a lot of A/B tests, during which we do 20-50 quick flips in one hour (in addition to using the switch normally every day). An active, relay-based system maybe? So, your solution is basically a simple patch panel. 2 PORT 3.5mm STEREO Manual Switch Box AUX Audio Headphone Speaker … 2. There is one exception: for many tube amps it is very unhealthy to be on with no load (no speakers connected), so If you have a tube amp, better get another set of speakers. If you have a solid state amp – no problem. It selects between Amp A and Amp B. If you only use it a few times a year – sure, it’s much easier to build. a speaker switch and modify it? 1. Put every component on its place and, if necessary, glue them to the case. Thanks! https://www.amazon.com/Stereo-Speaker-Selector-Switcher-Combiner/dp/B0184M4TVQ Stereo 2(1)-IN-1(2)-OUT Amplifier/Speaker mutual Audio Splitter/Switcher Special desgin for the Audiophile with two or more speakers and amplifier. PAS - Priority Audio Switch 2 in, 1 out (2 instances) FEATURES Industrial rated -40 to +75 C Two audio ports in with a secondary and primary E&M port Two instances of 2 in by 1 out 48 VDC relay controlled Can be rack mounted DESCRIPTION The Priority Audio Switch takes in 2 4-wire E&M or audio … The set of speakers includes : 2 columns (high-medium), 2 bookshelf speakers (med-low) and one subwoofer.