 Re: Crossover on the EP subs.
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Joined: Nov 2006
Posts: 1,333
connoisseur
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connoisseur
Joined: Nov 2006
Posts: 1,333 |
Quote:
I was just reading Alan's article regarding sub setup, in the new monthly newsletter. Below is a section from that article. Has anyone experimented with this type of crossover setting? As most of you know, we normally encourage people to leave the sub on bypass mode and let the receiver manage the LFE. I plan to try this tonight when I get home. 
"On the rear panel of the subwoofer, set the volume control to the mid-point or a bit less, and turn the subwoofer’s own crossover control to Bypass (if it has a bypass setting) or to its maximum rotation. Note: If a user wants to experiment and set the subwoofer's crossover at the same frequency as the receiver's crossover, better integration of the subwoofer may be achieved. Experiments at Axiom have shown that with the EP400/500/600 subs, it's advantageous to do so because of the brick-wall algorithms in the DSP circuits."
I have the EP500 set to bypass, but the volume is only at 7 or 7:30 - any more and it completely dominates. Even so, it's almost track by track dependent for xover. I have however found that by setting my pre-pro to 90 Hz, I get a more balanced sound and can run more music with a small setting for the mains. With the xover set at 60 it was really punchy.
Scott
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Re: Crossover on the EP subs.
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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OP
shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
Alan, Just curious if there is an update on this topic? I assume Ian and Amie are back from their vacation?
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Crossover on the EP subs.
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Joined: Jan 2002
Posts: 3,270
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 3,270 |
Sirquack,
They are. Ian is planning on weighing in on this subject tomorrow (Friday) morning, which may mean 3:00 a.m.
Regards,
Alan Lofft,
Axiom Resident Expert (Retired)
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Re: Crossover on the EP subs.
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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OP
shareholder in the making
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Awesome, I know Ian is an early bird, maybe I'll login when I'm letting the dog out at 4am.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Crossover on the EP subs.
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
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Heh. I'd actually call 3am a late bird -- at least that's how I most often experience the hour.
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Re: Crossover on the EP subs.
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
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Very good point. Those nights don't happen as much anymore now that I have a family unit. Heck, I think I'm going to watch the movie Raising Arizona, ha ha lol.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Crossover on the EP subs.
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Joined: Mar 2001
Posts: 1,387 Likes: 8
President connoisseur
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President connoisseur
Joined: Mar 2001
Posts: 1,387 Likes: 8 |
Looks like I am bit late with this post. Last winter I put a 3rd EP600 into my system in the back of the room and I started playing around with the x-over setting. I found quite a positive difference to the performance if I set the EP600 x-overs to 80 Hz; which is where I had processor x-over set for the center and surrounds. The low pass x-over in the processor is rated at 24 db per octave, which is reasonably steep, but the x-over in the EP600 sub is a “brick wall” IIR filter. So at 80Hz the sub is playing full volume but by 96 Hz it is 24 db down. I think it is worth checking this out; it would be interesting to hear if anyone experiences the same positive results to the performance that I had.
Ian Colquhoun
President & Chief Engineer
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Re: Crossover on the EP subs.
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Joined: Dec 2003
Posts: 10,420
shareholder in the making
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Quote:
Heh. I'd actually call 3am a late bird -- at least that's how I most often experience the hour.
That's my usual bedtime, 5 days a week and up around 7AM as my youngest son seems to feel I have slept long enough. Still working on his clock reading skills. 
Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70
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Re: Crossover on the EP subs.
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
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Thanks Ian,
I will experiment some more with various movies and music. Of course, I only have one 600 in my setup. So far I think I have noticed an improvment with both the 600 and Denon 2805 set to 80hz.....I have all speakers set to small, including the 80's. Do you have the 80's set to small?
Randy
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Crossover on the EP subs.
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Joined: Sep 2005
Posts: 50
buff
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buff
Joined: Sep 2005
Posts: 50 |
This is an interesting thread. I have a couple questions that I never felt satisfied with.
Given EP500's sharp fall off of frequency-response at 100 Hz, setting the crossover in my receiver at 120 Hz would cause me to loose everything between 100 and 120 Hz. Is that correct? If this is the case then I would think one is limited to setting the receiver crossover to 80 Hz or less.
Also, what is the difference between setting the EP500's crossover to 100 Hz or to bypass? The EP500 stops everything above 100 Hz. I don't see what you would gain with the bypass setting.
maphiker
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