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#366098 - 02/09/12 03:22 AM Re: Finally bought some [Re: lucv13]
2x6spds Offline
connoisseur

Registered: 03/16/02
Posts: 2726
Loc: CA, USA
Yaya that sure is good looking. A pair of M3s, a nice sub and some good tubes, that is a recipe for music nirvana.
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#366172 - 02/10/12 01:16 AM Re: Finally bought some [Re: 2x6spds]
lucv13 Offline
veteran

Registered: 05/07/08
Posts: 103
Loc: London ON Canada
Am considering adding a small sub but I'm a little confused about connecting it to the integrated amp and speakers since there is no dedicated sub preout. Looking at the rear of the EP125



I can see where to connect from the IA to the sub using the high level input but I do not see any output connections to go to the M3s

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#366176 - 02/10/12 02:15 AM Re: Finally bought some [Re: lucv13]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10363
Luc, using that equipment, the sub and speakers could be connected in two ways: first, you can run speaker wire from the amp terminals to the sub high level inputs and run separate speaker wires directly from the amp terminals to the M3 terminals(jamming both into the amp terminals and possibly trimming the ends down in size to help fit); second, you could run a speaker wire from the sub high level input terminals(again, jamming both wires in)out to the M3 terminals. These two connections are electrically identical. Note that subs don't have internal crossovers which might affect speakers connected through the sub, and the speakers will continue to run full-range.
_________________________
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Enjoy the music, not the equipment.



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#366178 - 02/10/12 02:49 AM Re: Finally bought some [Re: JohnK]
lucv13 Offline
veteran

Registered: 05/07/08
Posts: 103
Loc: London ON Canada
Thanks John, that's what I suspected but it just seems strange that they wouldn't include an output for this on the sub.

Per Alan's "Receiver and Subwoofer crossover set up" in the Articles section of the site the sub does have a crossover to be used in this case, I just wasn't clear on how to output from the sub

If you are running an older two-channel stereo receiver or an integrated amplifier that lacks a subwoofer output jack, connect the subwoofer by running the receiver’s left and right speaker cables to the subwoofer’s high-level or "speaker-level" input connectors. A second set of speaker cables would then run between the subwoofer and your main left and right front speakers. In this scenario, you would adjust the subwoofer crossover control to achieve a smooth blend between your main speaker’s bass output and the subwoofer’s deep bass output.

EDIT - just noticed it's my 100th post - Do I win a prize... cool


Edited by lucv13 (02/10/12 02:51 AM)

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#366179 - 02/10/12 03:07 AM Re: Finally bought some [Re: lucv13]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10363
No, subs actually don't have internal crossovers, even if the term is used. There's only a low-pass filter which affects only the sub, even if a speaker is connected through the sub(the connection is straight-through, and as mentioned above is electrically identical to connecting the speaker directly to the receiver/amplifier terminals). The speakers continue to run full-range, and an attempt to blend their natural roll-off with the sub output is made by adjusting the sub's low-pass filter to match that roll-off.

As to why separate speaker level output terminals aren't included on the sub, they're only a minor convenience since either of the two connections described above can still be made and have the same result.
_________________________
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Enjoy the music, not the equipment.



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