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Re: should I buy an ep500 subwoofer
#80600 02/08/05 12:16 AM
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Do you have preouts on your reciever,if so they would work.As a matter of fact any high pass that I have seen you would need preouts on the reciever.


Rick


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Re: should I buy an ep500 subwoofer
#80601 02/08/05 12:34 AM
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The only pre-outs that I have are for the zone-2. I have a Denon DRA-395 two channel receiver.


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Re: should I buy an ep500 subwoofer
#80602 02/08/05 02:50 AM
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colleen Offline OP
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I bought the EP500 today. I will probably receive in a day or two. I called Axiom and they told me to connect the subwoofer to my 2 speakers. Jean-Claude at Axiom says it is not necessary to connect the subwoofer to the receiver. Any comment on this setup?

Re: should I buy an ep500 subwoofer
#80603 02/08/05 03:04 AM
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Colleen, it certainly isn't "necessary", but as I said before the simplest thing is to keep the M60 wires as they are and just run wires from the B terminals of your 685 to the sub. For more complication, note the discussion on using 70Hz high-pass filters to roll off the M60s below that frequency.

Colleen, as an edit I'll ask how Jean-Claude suggested that you could make that connection? Possibly he wasn't aware of your receiver.

Last edited by JohnK; 02/08/05 03:15 AM.

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Re: should I buy an ep500 subwoofer
#80604 02/08/05 06:48 AM
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Colleen, you'll like the EP500. For both home theater and pure music it will really add a sonic foundation. I have M60s and by themselves the base is good. But with a good subwoofer it's much better.

If you have any trouble hooking it up, just post your questions here or call Axiom.

Re: should I buy an ep500 subwoofer
#80605 02/08/05 07:08 AM
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Perhaps run cables from the speaker binding posts to the sub binding posts? It really wouldn't be (electrically) any different from running the wires from the same terminals on the reciever. I proved that to myself quite some time ago, but I'd have to redraw the diagrams. My concern is that the wiring would be incredibly messy.


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Re: should I buy an ep500 subwoofer
#80606 02/10/05 02:07 AM
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colleen Offline OP
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Thanks Kcarlite and JohnK.
I missed the delivery of EP500 today. I will pick it up tomorrow. I will run wires from the B terminals of my receiver to my sub. It seems to be the simplest way. Why is it the same to run wires from my main speakers to my sub as running them from the receiver?

Re: should I buy an ep500 subwoofer
#80607 02/10/05 02:24 AM
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It just swaps the position of the resistors (ie speakers and sub, massively simplified) in the rather simple circuit. And since they're in parallel, I don't think the position change makes a difference. Someone who actually remembers physics could jump in here...


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Re: should I buy an ep500 subwoofer
#80608 02/10/05 02:47 AM
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Colleen, as Ken implied, there's essentially no electrical difference in the two arrangements. The input impedance of the sub amplifier is so high(in the tens of thousands of ohms)that the sub draws practically no power from the receiver and just uses the signal(one form of Ohm's Law is that power equals voltage squared divided by resistance, so if resistance is tens of thousands of ohms, power used is nearly zero)and then amplifies it. Running wire from the receiver to the speaker terminals and then continuing on to the sub, although a bit awkward, is almost as if the sub wasn't there at all, as far as the speakers are concerned.


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