Re: EP350v2 versus EP350v3 specs
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Joined: Feb 2008
Posts: 1,898
connoisseur
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connoisseur
Joined: Feb 2008
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Epic 80-800: HG Cherry
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Re: EP350v2 versus EP350v3 specs
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Joined: Dec 2003
Posts: 10,420
shareholder in the making
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shareholder in the making
Joined: Dec 2003
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I know that at Mojo's, we are unable to daisy chain as the input impedance on the 600 is too high and we are not able to run the second sub at equal SPL due to the cut down signal. Knowing this, I would go for the Y-splitter at the receiver,
Jason M80 v2 VP160 v3 QS8 v2 PB13 Ultra Denon 3808 Samsung 85" Q70
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Re: EP350v2 versus EP350v3 specs
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
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I gotta wonder if there's something wrong with Mojo's sub (this is going to be an expensive post...). If axiom put the pass throughs on the sub, they should work properly. From what Alan's said, they're essentially just a y-connector inside the sub--you can plug into either one for input!
I am the Doctor, and THIS... is my SPOON!
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Re: EP350v2 versus EP350v3 specs
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Joined: Jan 2004
Posts: 13,844 Likes: 13
shareholder in the making
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OP
shareholder in the making
Joined: Jan 2004
Posts: 13,844 Likes: 13 |
I had this same problem Jason, but with my current amp I do not have that problem with my 600. I don't think this problem is related, could be wrong then.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: EP350v2 versus EP350v3 specs
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Joined: Dec 2003
Posts: 10,420
shareholder in the making
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shareholder in the making
Joined: Dec 2003
Posts: 10,420 |
I guess Mojo should try one more new amp then.
Jason M80 v2 VP160 v3 QS8 v2 PB13 Ultra Denon 3808 Samsung 85" Q70
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Re: EP350v2 versus EP350v3 specs
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Joined: Apr 2007
Posts: 4,877
connoisseur
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connoisseur
Joined: Apr 2007
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I mentioned this before- when I had dual 500's for a few days I daisy chained them together... The first one had to be set at 6 oclock, but the second sub that was daisy chained off of the first had to be set to at least 9 o clock to get the same output. A small part of this may have been from placement but not much.
Is this normal? Could this be avoided by using a Y splitter?
I want to order a ep600 to pair with my ep500 and want to know the best way to approach this.
Thanks!
-David
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Re: EP350v2 versus EP350v3 specs
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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 don't believe there's a manufacturing defect with my amp. I've had a number of them now and they all behave the same way. Sure there's a Y-splitter inside but it doesn't somehow magically negate the amp's input impedance. Neither does an external Y-splitter.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: EP350v2 versus EP350v3 specs
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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 |
Denon....12ftcoax.....350v3......10ftcoax.......350v3......25ftcoax........ep600 So I understand that when you unplug the 25 ft. coax, the output on your 350s increases? If so, I am not surprised as I've explained before.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: EP350v2 versus EP350v3 specs
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Joined: Jan 2004
Posts: 13,844 Likes: 13
shareholder in the making
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OP
shareholder in the making
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Yes, I believe that is what I'm saying. The below graph is an old one with just a 600 up front, but it will help explain what I'm seeing. An interesting note is that my graph is not as flat currently with the 350's up front and the 600 in back, which kinda goes against what Dr O'Toole and Ian have been stating about using subs up front and in back? Anyway, when I unplug the 25ft coax from the LineIn on the 600 with the 600 turned off and unplugged, the graph from about 30hz to 50hz spikes up to 87dB's on the graph, basically a straight line across those frequencies. As soon as I plug it back in it looks how it did previously. When Jakeman wanted me to calibrate each sub individually, one at a time, and then plug them all in, I assumed I would still have the coax lines hooked up, just power the subs off/on one at a time.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: EP350v2 versus EP350v3 specs
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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 |
When you unplug the 600, the impedance that your Denon is seeing goes down. Hence its output goes up and that's why you are seeing the spike. The 600's input impedance is sucking down your Denon's output...just like it's sucking down mine. Now don't ask me what design decisions lead to a low input impedance. Maybe Axiom was worried about noise...I don't know.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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