2. amps-preamps
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High quality amplifier to speaker switch

I use One pair of speakers, Goldenear Triton One.R, for both tv listening and for more serious music-only listening. For music, the system consists of high quality vacuum tube preamp and solid state power amps. For tv, I have a much more modestly priced (and small) class D amp - saving wear and tear on the tubes and expensive stuff.Does anyone have a recommendation for a switch box to switch between the 2 amps to the same speakers? I would like there to be almost no sound quality degradation.
I know there are some old posts on this, but have not seen a definitive recommendation.
cakids
10 responses Add your response
last_lemming
638 posts
 
Try Goldpoint


https://www.goldpt.com/

cakids OP
166 posts
 
I see individual switch parts, and line level switching boxes, but nothing that switches between 2 amps, on the Goldpoint site.
Am I missing something?
last_lemming
638 posts
 
Sorry, I’m not 100% they have it. I have one of their units that switches between components and just thought they might have something for what you need.  It good quality, but  if they don’t have what your looking for then I’m not sure where to direct you. Good luck. 
cakids OP
166 posts
 
Thanks. I actually made my own switches using toggle switches and Kimber speaker cable. I can’t detect any sound degradation, but they wouldn’t be suitable for tube amps.
To be safe, I only switch when the amps are off.

yogiboy's avatar
yogiboy
5,661 posts
 
Here ya go!
https://www.amazon.com/Amplifier-Receiver-Speakers-Selector-Switcher/dp/B0796KGVXT/ref=pd_sbs_23_2/145-3047434-1291355?_encoding=UTF8&pd_rd_i=B0796KGVXT&pd_rd_r=8fbede74-851c-4eef-8697-fca576d2ec12&pd_rd_w=dFyTA&pd_rd_wg=Dc5X0&pf_rd_p=e20a7044-dca9-4b2c-8da8-05b176efe6fb&pf_rd_r=9SZ6Z5S5ZS8AGDZ8MMJT&psc=1&refRID=9SZ6Z5S5ZS8AGDZ8MMJT
cakids OP
166 posts
 
Thanks for the Amazon link. I may order it and compare to my homemade switch. I notice that to protect the amps it has an internal load resistor across the terminals. Might affect the SQ or amplifier performance somewhat. Seems like a useful device nevertheless. 
axememan's avatar
axememan
279 posts
 
Here is another option.I bought one in 2017 and have had no issues   https://www.amazon.com/TC-7220-Amplifier-Selector-Comparator-Crossover/dp/B00LNOAGZQ/ref=sr_1_2?dchild=1&keywords=tc+amp+speaker&qid=1591892816&s=electronics&sr=1-2
cakids OP
166 posts
 
Looks like another nice alternative. Cant be used with vacuum tube amps however. So, one has to be sure to keep amps off when switching, as a precaution. Just like my handmade switches.
Thanks for the tip.
axememan's avatar
axememan
279 posts
 
Actually I wired a Resistor across the tube amp speaker terminals to protect me in case I did not have the tube amp connected to the speakers when I switched.
cakids OP
166 posts
 
Good idea.
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