 Re: Texas' New Epicenter
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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 suppose Axiom could be not telling the truth about the subs abilites. 
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Texas' New Epicenter
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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 |
Did Axiom actually say that this sub can do 122 dBs without distortion? If they did, it's a typo.
House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated
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Re: Texas' New Epicenter
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Joined: Mar 2005
Posts: 7,463 Likes: 1
axiomite
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axiomite
Joined: Mar 2005
Posts: 7,463 Likes: 1 |
Tex, what size driver does your Sony sub have?
Way back when I first bought my sub, I started with a Hsu VTF 2 with a 10" driver. I traded up to the VTF 3 with the 12". I still feel the smaller driver gave me better punch for music, but I wanted more muscle for the HT side of things.
***********
"Nothin' up my sleeve. . ." --Bullwinkle J. Moose
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Re: Texas' New Epicenter
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Joined: Feb 2008
Posts: 1,898
connoisseur
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OP
connoisseur
Joined: Feb 2008
Posts: 1,898 |
Mojo, After running the real traps test tones through the 600 today I've confirmed I have the same two problems you do. 1) the amp has a rattle that comes to life at 35 hz and under, and 2) something within the speaker rattles, maybe the cone, the attachment of the woofer to the speaker, or something inside the box. Hard to tell exactly what, but it's definitely there, and definitely not good.  #1 I can probably fix with a screwdriver or wrench, but #2 seems unlikely without sending it back. Jason
Epic 80-800: HG Cherry
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Re: Texas' New Epicenter
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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 |
It has a 12", treated paper driver. I shellacked the inside surface of the driver and filled the box loosely with polyfill taking care not to stuff around the port. These changes were actually sanctioned by the designer of the sub who was contracting to Sony. He claimed that by doing this, the sub would sound tighter and it sure did! I got a lot of musical subbage for $160 from London Drugs .
House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated
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Re: Texas' New Epicenter
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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 |
Now lie it down horizontally and see if it sounds any better with regard to your fist problem.
House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated
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Re: Texas' New Epicenter
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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 |
"The Cleanest Loudest Bass. The EP600 plays louder than a live performance at Carnegie Hall - an amazing 122 dB! Don't worry about distortion - the Intelligent DSP won't allow it. Instead, it tightly controls the signals to the 600-watt power amplifier and massive 12-inch aluminum driver and its dual 3-inch voice coil to provide you with peak performance, never going over the edge into distortion. Crank it up - XLF makes the EP600 unbreakable!
"
M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85
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Re: Texas' New Epicenter
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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 |
 . Someone was drinking the marketing cool-aid that day.
House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated
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Re: Texas' New Epicenter
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Joined: Mar 2008
Posts: 1,378
connoisseur
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connoisseur
Joined: Mar 2008
Posts: 1,378 |
Do you have the 150Hz firmware and is that what you've dialed the 600 to? How would I check which firmware I have? Also, Jakeman, sroode, and others, thanks for the detailed responses. I'll use the 30 days to experiment more and see how much improvement I can work out. I've also downloaded the REW software and will give it a run as well. Jason I'm very interested to see the results of the scan. As a side note, when you calibrated your sub, what setting did you wind up leaving it set at? Flat, Half, or Full?
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
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Re: Texas' New Epicenter
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Joined: Mar 2008
Posts: 1,378
connoisseur
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connoisseur
Joined: Mar 2008
Posts: 1,378 |
If your sub and speakers are out of phase near the crossover point because of placement or room issues, you aren't going to hear that crisp pluck or snappy snare drum. Also for that purpose, the brickwall filter is actually beneficial since the sub stops contributing any output to the upper harmonics which are more deftly handled by the speakers. If you are using a mono EP600 with M80s with music, I would strongly suggest not going higher than a 60hz crossover and ideally with a 40hz crossover since the M80s can easily handle the stereo bass duties down to 30hz. I'm assuming also that you have a powerful enough amp to drive the 80s as they will need more power with the lower crossovers. Lowering the crossover should reduce artifacts which are likely caused by several of the above noted problems.
Very informative post jakeman. What are your thoughts of raising the sub xo if you have dual subs in the front corners? I would think it would be okay because, although the subs are now outputting a frequency that could be localized, since they are in the corners equidistant, it would still keep the soundstage balanced. Also, you would not be relying on a weaker amp to drive the low frequencies. I tried xo's from 40-150, and the best response I got with 2 EP500's in the front corners was 90Hz in the AVR, subs in bypass.
LFR1100 Actives,QS10HPx2,QS8x2,EP800,M3x4,M3x2 (Wood),M5HPx2 (Wood),AxiomAir,ADA1500-8,ADA1500-7
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