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External Sub Amp with Speaker Level Inputs?
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| Topic: | External Sub Amp with Speaker Level Inputs? This thread has 10 replies. Displaying all posts. |
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| Post 1 made on Tuesday December 16, 2014 at 20:36 |
tgrugett Select Member |
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Posts: | August 2004
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Anyone have a bead on such a beast that is worth a C#$p?
I need to tap into an exiting hot tub sub speaker and I need to tap off an existing distributed audio stereo zone output (no line level out available).
Of course... I could just say no...
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| Post 2 made on Tuesday December 16, 2014 at 20:41 |
ichbinbose Select Member |
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Posts: | August 2011
1,822 |
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| Post 3 made on Tuesday December 16, 2014 at 20:44 |
Dave in Balto Super Member |
Joined:
Posts: | January 2008
2,770 |
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the Definitive Technology sub amp 600 is a decent bet for the money, it has external cross over control.
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Hey, careful man, there's a beverage here!
The Dude |
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| Post 4 made on Tuesday December 16, 2014 at 20:46 |
Brad Humphrey Select Member |
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Posts: | February 2004
2,424 |
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| Post 5 made on Tuesday December 16, 2014 at 21:07 |
ShaferCustoms Long Time Member |
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Posts: | March 2014
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Use one of these and add you favorite sub amp? TX-8A ‐ 4 Ohm / 8 Ohm Input Interface [Link: rdlnet.com]The Crown xls1500 is bridgeable and has crossover built in. Or Brads idea also.
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| Post 6 made on Tuesday December 16, 2014 at 21:42 |
3PedalMINI Loyal Member |
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Posts: | July 2009
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The Bitterness of Poor Quality is Remembered Long after the Sweetness of Price is Forgotten! - Benjamin Franklin |
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| Post 7 made on Tuesday December 16, 2014 at 21:53 |
Ernie Gilman Yes, That Ernie! |
Joined:
Posts: | December 2001
30,076 |
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The cheap products linked to will do the job if you will lose the mindset that the subwoofer must have the speaker to line level circuitry built into it. Get an external unit: THAT is the way to slay this beast.
There might still be some units out there that only output bass effects on the power amp outputs, so this is a good idea anyway.
Be aware that all of these units offer a pretty high impedance load to the amplifier. I wrote it that way just to scare you if you weren't thinking: a high impedance load means hardly any current at all is drawn by the adaptor, so you can run 26 gauge wire (or larger with zero added benefit) a hundred feet to one of these 8 ohm to line level adaptors, and not have any problem at all!
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A good answer is easier with a clear question giving the make and model of everything.
"The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw |
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| OP | Post 8 made on Wednesday December 17, 2014 at 03:28 |
tgrugett Select Member |
Joined:
Posts: | August 2004
1,847 |
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Thanks for the ideas... I somehow blanked on the concept of an external adapter.
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| Post 9 made on Wednesday December 17, 2014 at 07:00 |
vwpower44 Super Member |
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Posts: | August 2004
3,662 |
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Sonance A800
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Stay Hungry, Stay Foolish... |
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| Post 10 made on Wednesday December 17, 2014 at 09:08 |
highfigh Loyal Member |
Joined:
Posts: | September 2004
8,192 |
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Like this-  Or, it could be made for little money, but the "our cables have batteries" and "our cables will complete you" crowd will probably cringe.
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My mechanic told me, "I couldn't repair your brakes, so I made your horn louder." |
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| Post 11 made on Wednesday December 17, 2014 at 15:54 |
Brad Humphrey Select Member |
Joined:
Posts: | February 2004
2,424 |
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Danger!
I can't be completely sure without going and checking again, but I believe the Xantech unit is common ground input. Meaning it will work with many A/V receivers, stereo amps, and many audio distribution amps. But NOT all. Some audio distribution systems (and amps) have BTL outputs and using this can 'damage' them.
A quick check with your trusty multi-meter will let you know.
I however always suggest using a speaker level to line level adaptor, that does NOT have common ground inputs.
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