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Amplifier Input Expander


sg60

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I have an Ayre Ax7E amplifier that I'm very happy with but have used up all of the available inputs and would really like to figure out a way to add at least one more (preferably a balanced input which is the recommended choice on Ayre amps). I've searched the web looking for solutions and although there are devices like this out there I've never come across one made by a manufacturer that I feel I can trust. I'm obviously concerned about degrading the signal if the device is not of the highest quality. Can anyone recommend an audiophile quality device that would solve this problem or suggest any other solutions? Thanks.

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I have an Ayre Ax7E amplifier that I'm very happy with but have used up all of the available inputs and would really like to figure out a way to add at least one more (preferably a balanced input which is the recommended choice on Ayre amps). I've searched the web looking for solutions and although there are devices like this out there I've never come across one made by a manufacturer that I feel I can trust. I'm obviously concerned about degrading the signal if the device is not of the highest quality. Can anyone recommend an audiophile quality device that would solve this problem or suggest any other solutions? Thanks.

 

QED, an English company, used to make input expanders but they have apparently discontinued them. You might be able to find a used one. They accept RCA connectors only.

"Relax, it's only hi-fi. There's never been a hi-fi emergency." - Roy Hall

"Not everything that can be counted counts, and not everything that counts can be counted." - William Bruce Cameron

 

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Yes, they do. I had a simple two way switch many years ago because I was short on preamp inputs and the QED device worked without any problems. To minimize the possibility of signal quality degradation, I would suggest that you assign the least critical components, from an audio point of view, to the switch, e.g. TV sound, am/fm tuner sound, as opposed to higher end audio components.

 

If you want to get some idea about the company's reputation, you might want to do a search on "QED Audio reviews". It will bring up reviews of their products, primarily cables.

"Relax, it's only hi-fi. There's never been a hi-fi emergency." - Roy Hall

"Not everything that can be counted counts, and not everything that counts can be counted." - William Bruce Cameron

 

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You really want a well made, passive switch box. I'm not sure who makes these for home audio; I've used Radial Engineering AB boxes before for sound reinforcement purposes, and they are very well made, using high quality parts. I'm not sure if they make more than an AB (2 in to 1 out) balanced expander though. I also don't know if they are truly audiophile. But you could get one and try it in your system at home to see.

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Not sure of the quality, but Project (the turntable people) had a 4way switch as part of their "Box" range. Around £100 iirc.

Sorry don't think that would be at all suitable...

 

Eloise

Eloise

---

...in my opinion / experience...

While I agree "Everything may matter" working out what actually affects the sound is a trickier thing.

And I agree "Trust your ears" but equally don't allow them to fool you - trust them with a bit of skepticism.

keep your mind open... But mind your brain doesn't fall out.

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