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Go Back   Blu-ray Forum > Audio > Subwoofers

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Old 10-30-2012, 03:55 PM   #1
mywhitenoise mywhitenoise is offline
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Default Upgraded to a ML Depth i, should I get rid of my Dynamo?

I bought a Depth i yesterday for $850, pretty happy with that price!

Should I try and sell off my Dynamo 500, or use it as a second sub?
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Old 11-02-2012, 05:45 PM   #2
mywhitenoise mywhitenoise is offline
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bump
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Old 11-02-2012, 06:43 PM   #3
Tom V. Tom V. is offline
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Since you have both now, it can't hurt to experiment with them in the same room. However, one is ported with a -3 point specced at 29hz. The other is sealed with a claimed flat response to 18hz anechoic.

Just based on those specs(I couldn't find real measurements of either). it may be a bit difficult to get them to do more good than harm together. First, I'd guess the depth will have quite a bit more output capability. Next, the depth will also have a good bit more extension. Now, factor in the big phase shift the ported unit will go through near port resonance and you have three significant issues to try to minimize.

I'd probably move the dynamo to a second system/room and focus on optimizing the new Depth into the system,

Tom V.
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Old 11-02-2012, 08:48 PM   #4
mywhitenoise mywhitenoise is offline
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Thanks for your input, Tom!
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Old 11-02-2012, 11:49 PM   #5
Big Daddy Big Daddy is offline
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A better option is to keep both subwoofers in the same room. One subwoofer, no matter how great, will always create low frequency peaks and toughs in the room. The bass will be very uneven. In some spots in the room, you will hear too much bass and in other spots you will hear almost no bass. This has nothing to do with the quality of the subwoofer and has everything to do with the room and the damn standing waves.

A good suggestion that Dr. Hsu of HSU Research has made in the past is to place the better subwoofer up front in a corner (not too close to the walls) and place the smaller subwoofer closer to your listening area. This way, the bigger sub up front will create the lower bass frequencies and the sub closer to your seat will create midbasss frequencies and you will live in bass heaven.

In fact, HSU Research sells a midbass subwoofer for this purpose.
HT Room: Panasonic PT-AE8000, Epson 1080UB Proj., Mitsubishi 65" Diamond Series HD TV, Yamaha-RX-A3010 Rec., CinePro 6-Ch. Amp. (350 W/Ch, 8 Ohm), Proton D1200 Amp., Behringer EP4000 & EPX3000 Amps., Oppo BDP-83, Sony BDP-S790, Audio Technica Tuntable, Mitsubishi S-VHS, 2 Def. Tech. Super Towers w 15" subs, 1 Def. Tech. Center & 1 Martin-Logan Center, 2 Def. Tech. Surr. & 2 PSB Surr., 2 Cadence Presence, 2 Bose 901 Rears, 2 Modified HSU 12" Subs, 1 ED DIY 12" Sub, 1 ED DIY 15" Sub, Velodyne SMS-1 Subwoofer Equalizer, DirecTV HD, Monster HTS 5000 & APC H15 Power Conditioners.
Two-Channel Room: XiangSheng Tube Preamp., Carver TFM-45 Amp. (375 W/Ch), Behringer EPX4000 Amp., Onkyo CD player, Denon Turntable, Yamaha Tuner, 2 Vintage Polk RTA-15TL Speakers, 2 LCY 100 Super Tweeters, 2 DIY Folded Horn Super Towers with 15" Sub., 1 Modified AA HD-SUB12
Family Room: Mitsubishi 73" Diamond Series TV, Yamaha DSP-A3090 Rec., DirecTV HD-DVR, PS3, Zvox Speaker, 1 DIY 12" Sub.
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Old 11-25-2012, 06:16 PM   #6
Drew664 Drew664 is offline
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Quote:
Originally Posted by Big Daddy View Post
A better option is to keep both subwoofers in the same room. One subwoofer, no matter how great, will always create low frequency peaks and toughs in the room. The bass will be very uneven. In some spots in the room, you will hear too much bass and in other spots you will hear almost no bass. This has nothing to do with the quality of the subwoofer and has everything to do with the room and the damn standing waves.

A good suggestion that Dr. Hsu of HSU Research has made in the past is to place the better subwoofer up front in a corner (not too close to the walls) and place the smaller subwoofer closer to your listening area. This way, the bigger sub up front will create the lower bass frequencies and the sub closer to your seat will create midbasss frequencies and you will live in bass heaven.

In fact, HSU Research sells a midbass subwoofer for this purpose.
I have recently moved and have a set up that may support this mid bass concept. Is there a member here who has done this? I will try and post a picture in a few minutes....
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Old 11-25-2012, 06:24 PM   #7
Drew664 Drew664 is offline
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I would put the bigger, better sub up front and the mid bass behind the Lazy Boy.

Thoughts?
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