Speaker Switcher
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Joined: Dec 2003
Posts: 10,420
shareholder in the making
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OP
shareholder in the making
Joined: Dec 2003
Posts: 10,420 |
I have been looking and found a number of speaker switchers that allow for the trend of dual or more centers and still keep an 8ohm load. Here is a link to one. speaker switcher
Jason M80 v2 VP160 v3 QS8 v2 PB13 Ultra Denon 3808 Samsung 85" Q70
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Re: Speaker Switcher
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Joined: Aug 2007
Posts: 3,488 Likes: 9
connoisseur
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connoisseur
Joined: Aug 2007
Posts: 3,488 Likes: 9 |
Actually, from their documentation, it is safe to infer that 2 8 Ohms will be seen as 4 Ohms. Their special circuits are triggered to maintain 4 Ohms, which is why they need an amp that works fine at 4. This is good news for VP-150 in that 2 6 Ohms will be seen as 4 Ohms instead of 3 Ohms.
See Mojo's signature
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Re: Speaker Switcher
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
I wonder what its transient response is like.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: Speaker Switcher
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Joined: Dec 2003
Posts: 10,420
shareholder in the making
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OP
shareholder in the making
Joined: Dec 2003
Posts: 10,420 |
I saw a number of them today, I know one said it would maintain 8ohms, obviously not the one I linked to, but you get the idea.
Jason M80 v2 VP160 v3 QS8 v2 PB13 Ultra Denon 3808 Samsung 85" Q70
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Re: Speaker Switcher
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
I wonder what FREQUENCY response is like ?
The box itself is flat 20-20K, which makes sense, but unless it has a built in power amp it must either wire speakers in series or insert series resistance to maintain an acceptable impedence, and both of those are going to have some impact on frequency response as the speaker impedence varies with frequency.
If it's just wiring in series-parallel that wouldn't be too bad, but series resistance would have a pretty big effect on the frequency response of the switcher/speaker combo.
Last edited by bridgman; 10/22/07 01:41 AM.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: Speaker Switcher
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
Or use transformers. Which is why I was asking about transient response.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: Speaker Switcher
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
Interesting idea. A transformer fits the "impedence magnifying circuitry" description better than series resistors or series-parallel switching.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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