EP-500 Crossover/thought I had it all figured out!
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Joined: Feb 2007
Posts: 602
aficionado
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OP
aficionado
Joined: Feb 2007
Posts: 602 |
While troubleshooting Toshiba's HD-XA2 player's lack of LFE, I re-read the EP-500 manual. In there, it says to set the crossover on the sub to the same or slightly higher setting than the AVR.
I thought it should just be set to bypass (making it crossover push of 150Hz). Am I wrong? does it matter since my AVR is doing the bass management?
-- Denon 4520, EPIC80/500/VP180 Speakers
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Re: EP-500 Crossover/thought I had it all figured
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
Axiom discovered that better integration with the main channels may occur by using both crossovers. YMMV, but it's worth a shot. I believe I have my sub set to bypass since a cursory test with it enabled at 80Hz didn't yield a discernible improvement.
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Re: EP-500 Crossover/thought I had it all figured
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
I've read the same information from Alan and Ian. To me the jury is still out on this setup. I currently also use Bypass on the sub and let the receiver manage the LFE. Until recently, this is what Axiom as preached.
In my testing/graphs, I have not noticed a benefit for matching the crossover on both.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: EP-500 Crossover/thought I had it all figured
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
I should also note that it didn't appear to hurt the sound, but I defer to Randy for details as I didn't do any graphing.
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Re: EP-500 Crossover/thought I had it all figured out!
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
That does seem odd, unless you are running 5.1 analog from the player to the receiver in which case (depending on brand) your receiver might be doing a straight pass-through and relying on the bass management in the player.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: EP-500 Crossover/thought I had it all figured out!
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
Well, since you were all rude enough to post well-informed responses while I was carefully composing my "I dunno" answer, I guess I'll go find another thread to hang out in.
Hmpph.
Today's new and expensive discovery. Ultrasound for dogs. So much for the EP600 fund.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: EP-500 Crossover/thought I had it all figured out!
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Joined: Aug 2004
Posts: 6,379 Likes: 7
axiomite
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axiomite
Joined: Aug 2004
Posts: 6,379 Likes: 7 |
Well, since you were all rude enough to post well-informed responses while I was carefully composing my "I dunno" answer, I guess I'll go find another thread to hang out in.
Hmpph.
Today's new and expensive discovery. Ultrasound for dogs. So much for the EP600 fund.
M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39 M5HP, M40ti, Sierra-1 LFR1100 active, ADA1500-4 and -8
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Re: EP-500 Crossover/thought I had it all figured out!
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Joined: Jan 2004
Posts: 13,840 Likes: 13
shareholder in the making
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shareholder in the making
Joined: Jan 2004
Posts: 13,840 Likes: 13 |
You need to ditch that dial-up.
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350 AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: EP-500 Crossover/thought I had it all figured out!
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Joined: May 2002
Posts: 10,654
shareholder in the making
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shareholder in the making
Joined: May 2002
Posts: 10,654 |
Han, there was some discussion here on that point a few months ago. I experimented a bit and found no benefit in adding the internal sub filter. I continue to set it on bypass, which was the suggestion in the manual at the time that I got my EP500 about a year ago.
-----------------------------------
Enjoy the music, not the equipment.
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Re: EP-500 Crossover/thought I had it all figured out!
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Joined: Jan 2002
Posts: 3,270
connoisseur
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connoisseur
Joined: Jan 2002
Posts: 3,270 |
Hi Hansang,
As pmbuko correctly pointed out, the reason we changed the instructions in the EP500 manual was to take into account some experiments and listening tests that Ian Colquhoun and Tom Cumberland of Axiom did with the EP500's crossover set to bypass and compared those with the crossover set to 80 Hz or somewhat higher.
The rationale behind this was that the "brick-wall" nature of the DSP filter in the EP500 might cause a sag in frequency response between 100 Hz and the integration of the satellite speakers. I didn't participate in the tests and when I tried it with my own EP500, using both M22s and M80 v2s, I couldn't discern any difference. However, I trust Ian and Tom's conclusions.
I suggest you try it both ways, with the EP500's crossover set to bypass and your AV receivers bass management set to 80 Hz, and then with the EP500 crossover set to 80 Hz or higher together with the AV receiver at 80 Hz. Listen to the bass region between 80 Hz and 150 Hz to see if there's any difference.
Regards,
Alan
Alan Lofft, Axiom Resident Expert (Retired)
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