Re: speaker selector
|
Joined: Jan 2002
Posts: 3,270
connoisseur
|
connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hi Nick,
You want to use a "constant-impedance" selector that will prevent the impedance of multiple pairs from falling below 4 ohms.
Alan Lofft, Axiom Resident Expert (Retired)
|
|
|
Re: speaker selector
|
Joined: Jan 2002
Posts: 3,270
connoisseur
|
connoisseur
Joined: Jan 2002
Posts: 3,270 |
Sorry my ultra-sensitive touch pad posted this before I finished. . . Niles has an inexpensive one--the SS4 should work, so long as your Onkyo doesn't have an ultra-sensitive protection circuit that shuts things down when it senses a 4-ohm load. Older Onkyos use to do that but I think the newer ones are better. Here's a link to another switcher that keeps impedance no lower than 4 ohms: http://www.escience.ca/hobby/RENDER/0001/21/3030/13076.html Regards,
Alan Lofft, Axiom Resident Expert (Retired)
|
|
|
Re: speaker selector
|
Joined: Jan 2002
Posts: 3,270
connoisseur
|
connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hi,
To answer your question, the lower-priced ones have internal resistors which waste power but keep the impedance from going below 4 ohms. Those should be adequate if your speakers in the other rooms are not intended for super fidelity.
Alan
Alan Lofft, Axiom Resident Expert (Retired)
|
|
|
Re: speaker selector
|
Joined: Aug 2006
Posts: 504
aficionado
|
OP
aficionado
Joined: Aug 2006
Posts: 504 |
Alan,
The internal resistors would waste the power if more than one pair of speakers is being used, or does this happen all of the time? If this happens only when more than one pair is being used at the same time then I don't really care, because I plan to rarely use it that way. I do have a good set of Aperion audio speakers that I will be mounting in one room that I would like to get a nice sound out of though.
- Nick
|
|
|
Re: speaker selector
|
Joined: Jan 2002
Posts: 3,270
connoisseur
|
connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hi Nick,
I think it would happen only when more than one pair of speakers on the switcher were engaged. It wouldn't be a big power loss. You could order one and try it out temporarily with a couple pairs of speakers to see if it works OK and doesn't cause your Onkyo to shut down.
My comment on the fidelity issue is based on the idea that the resistors may interact with the impedance of the speaker in an unpredictable way. This is speculation on my part based on comments from Axiom's chief engineer, Tom Cumberland, when I asked him about multiple speaker hook-ups and constant-impedance switching devices.
Alan
Alan Lofft, Axiom Resident Expert (Retired)
|
|
|
Re: speaker selector
|
Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
|
shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
Hey Alan, Can you recommend something that one could use for doing Blind A/B testing between speaker brands? I assume it would have to be a speaker slector with some type of dB level matching ability? Oh, and it would have to be cheap. WAF Randy
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
|
|
|
Re: speaker selector
|
Joined: Jan 2002
Posts: 3,270
connoisseur
|
connoisseur
Joined: Jan 2002
Posts: 3,270 |
Randy,
The tech guy at Axiom built one for me, so I'm not up on where you'd find a commercial unit. I'm sure they're available. On my switcher, the adjustment for different speaker sensitivities has a limited range, but enough for the differences in Axiom models and some other brands I have kicking around for comparison purposes. Mine will only accommodate two pairs of speakers-- "A" and "B."
Alan
Alan Lofft, Axiom Resident Expert (Retired)
|
|
|
Re: speaker selector
|
Joined: Aug 2007
Posts: 3,488 Likes: 9
connoisseur
|
connoisseur
Joined: Aug 2007
Posts: 3,488 Likes: 9 |
So you've never been able to tell if C is better or not? Tss. Not professionnal!
See Mojo's signature
|
|
|
Re: speaker selector
|
Joined: Sep 2004
Posts: 11,458
shareholder in the making
|
shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
And I'll bet that all this time, "C" WAS the kick-ass choice, and we've all suffered because of Alan's laziness / cheapness in not getting an A/B/C switcher.
Damn. I was gonna buy him a beer someday if we met.
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
|
|
|
Forums16
Topics24,945
Posts442,484
Members15,617
|
Most Online2,082 Jan 22nd, 2020
|
|
0 members (),
1,228
guests, and
6
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
|
|