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post #3811 of 3815 Old 02-17-2017, 05:35 PM
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Originally Posted by MBrown2020 View Post
According to website:
USB self powered device and wide range of DC power options (4.5 to 24VDC)

So, I still need to power it with AC adaptor? I did order it with the miniDSP that arrives Saturday. Do you leave it plugged in at all times? Does the automatic sub turn off still work?
Thanks!
Mine is powered all the time, and yes, my subs do turn off.
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post #3812 of 3815 Old 02-17-2017, 05:38 PM
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Originally Posted by AustinJerry View Post
Mine is powered all the time, and yes, my subs do turn off.
Jerry,
Could you have a look at post #3807 and see if I'm on the right track? Thanks again for all you help!
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post #3813 of 3815 Old 02-17-2017, 06:06 PM
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Originally Posted by MBrown2020 View Post
I just purchased the minDSP 2x4 unbalanced. I plan on using it with 2 SVS PB-2000's & 1 PC-2000 (Same amp & drivers). The subs input sensitivity is 350mV. Is the .9V output on the miniDSP for each of the four outputs or combined (.9V divided by 4). I will be using this with a Marantz AV8802a.

I just did the voltage gain test using a Fluke 114 True RMS voltmeter. I had audyssey enabled by mistake when doing measurements, does it really matter? With MV=0 (reference) SW trim was as follows:
-5.0 = .998V
-5.5 = .940V
-6.0 = .890V
So if I set trims for combined subs (75dB) at -6.0 I should be good?
Thanks!
Each sub gets .9v. You should be just fine.
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post #3814 of 3815 Old Yesterday, 07:54 PM
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I was.looking at the 2x4 HD as an active XO and DSP. Is there a LF cutoff and is it adjustable?

With the advanced plug in it is.

I wanted to run my midbass unit between 50Hz to 1kHz. It has a short xmax and in a vented box it could exceed xmech from 25Hz down at rated power. Now I can proceed with the vented design.

Last edited by Steve Hanna; Today at 01:38 AM.
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post #3815 of 3815 Unread Today, 04:21 AM
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Originally Posted by Steve Hanna View Post
I was.looking at the 2x4 HD as an active XO and DSP. Is there a LF cutoff and is it adjustable?

With the advanced plug in it is.

I wanted to run my midbass unit between 50Hz to 1kHz. It has a short xmax and in a vented box it could exceed xmech from 25Hz down at rated power. Now I can proceed with the vented design.
Yes, I believe that all of the MiniDsp's have high pass filtering capability.
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