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dbEric

New HT subwoofer

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Taking the subwoofer out from my receiver to a low pass crossover and then to the Soundstream C-1 preamp and onto the Soundstream DA-1 dual monoblock amplifier.

-Soundstream DA-1

Dual monoblock power amplifier

200 watts /channel, 8ohms (continuous power, minimum rms, 20Hz-20kHz, (with less then 0.1% THD)

300 watts/ channel, 4ohms

400 watts bridge, 16ohm

600 watts bridge, 8ohm

Frequency response 20Hz-20kHz +-0.1dB

Bandwidth 2Hz-100kHz

Slew rate greater then 35v/us

Crosstalk greater then -110dB

Signal/Noise, A weighted greater then -110dB

Gain x40, 32dBv

Dynamic Headroom greater then 3dB, 4ohm

Dimensions 5 7/8" x 17" x 14"

Weight 35lbs

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-Soundstream C-1 pre-amplifier

Input impedance 30k ohms

Input sensitivity less then 100mv for 0.5Vout

Maximum input signal 10Volts

Frequency Response 20Hz-20kHz +-0.1dB

Bandwidth 2Hz-100kHz

THD less than 0.05%

Signal/noise, A-weighter greater then -110dB

Crosstalk greater then -100dB

Maximum Gain 15dB

Headphone ouput Impedance 30 ohms

Main Output Impedance 1000 ohms

Minimum Recommended load 5000 ohms

Maximum Output Level 10 volts

Treble +-8dB, 10kHz

Bass +-10dB, 50Hz

High Cut Filter 8kHz, 6dB/octave

Mute -20dB

Dimensions 3 3/5" x 17" x 11 1/2"

Weight 15lbs

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Elemental Designs 12Kx.2?2

-12" dual voice coil subwoofer

-150/400 power requirement

-Dual 2 ohm coils

Qts: 0.30

Qes : 0.34

Qms : 3.16

Vas : 181.65L

Sd : 545.42 cm^2

Xmag : 12.5mm

Xsus: 18.9mm

Xmax: 12.5mm

MMd: 178g

Re: 2.39

Fs: 17Hz

Bl: 21

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6 cube box tuned to roughly 21-23Hz. Hooked up 4 ohms per sub.

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My secret glue

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It replaces this

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A couple things...

Sweet flat cones.

Sweet enclosure

HOLY OVER BRACED !!!!!!!!!

Can i have some of that " secret glue" on my hot dog please

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that's freakin awesome. Awesome box

I love the secret glue ;)

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that's freakin awesome.  Awesome box

I love the secret glue ;)

x2

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Great construction. The drivers look very nice indeed. I hope that caulk dries clear.

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no it won't. I grabbed the wrong tube of caulk. I used some silicone around the subs and that is clear.

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I like the low tuning, always a fan of that.

I would like to see a negative response to this project.

Very amazing.

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Looks very good.

I just thought that if those woofers were placed in a box that was lacquered to hell and back (like some monitor's are, really glossy) I would come to your home and they'd be leaving with me.

That Soundstream amp looks cool, do you like it?

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Very nice setup. That is one sexy box. Might I suggest you get some spreay paint and go over the caulk to make it not stand out so much?

Still a very well built HT substage.

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I'll post a negative. The paint isn't 100%. I wish I would have used body filler over the entire surface and sanded to get the best possible surface for painting. I would hace also gone with a bedliner time spray on but this is fine if you don't go right up to it under the light.

I also need to put in a port brace since I can almost feel the ouside wall flexing.

Soundstream Amp is nice. I also have the matching C-1 pre-amp and T-1 tuner. The amp is just starting to clip at the maximum I would want to push these. The amp does get real hot when pounding away.

I've been delaying speaker porn and the output mesurements. SOON...

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