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MiniDSP 4x10 HD Measurements
MiniDSP 4x10 HD Measurements
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Old 2nd December 2017, 01:09 PM   #71
first_1st is offline first_1st  Thailand
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If I want to upgrade NJM2068 please suggest which one I should go. Dip8 is ok
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Old 3rd December 2017, 04:33 AM   #72
tomchr is offline tomchr  Canada
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You won't be able to install a DIP-08 into a MiniDSP 4x10HD.

Tom
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Old 3rd December 2017, 05:29 AM   #73
Jim the Oldbie is offline Jim the Oldbie  United States
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MiniDSP 4x10 HD Measurements
'Tis but a mere speed bump to the determined opamp roller.
From Lambo to Geo Metro and everything in between:
SOICdiscrete_opamp.jpgDIP2SMD.jpg
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Old 3rd December 2017, 07:56 AM   #74
first_1st is offline first_1st  Thailand
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Quote:
Originally Posted by tomchr View Post
You won't be able to install a DIP-08 into a MiniDSP 4x10HD.

Tom
First time i plan to use adaptor to dip8

But if i not use adaptor which opamp you recommed to upgrade this minidsp

Thank you
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Old 4th December 2017, 04:29 AM   #75
tomchr is offline tomchr  Canada
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Quote:
Originally Posted by Jim the Oldbie View Post
'Tis but a mere speed bump to the determined opamp roller.
I guess some have way more time and patience than I do... Oh, well. Each to their own.

Quote:
Originally Posted by first_1st View Post
First time i plan to use adaptor to dip8

But if i not use adaptor which opamp you recommed to upgrade this minidsp
The opamps in the MiniDSP 4x10HD does not use a common footprint. The DMP8 footprint does not fit anything else that I'm aware of. If I was to replace those opamps, I'd probably go for an OPA1612.

Tom
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Modulus-686: 240W/8Ω @ <0.00025% THD. Modulus-86: 40W/8Ω @ 0.000054% THD. DG300B & Other Tube Circuits.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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Old 16th December 2017, 03:42 AM   #76
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Quote:
Originally Posted by tomchr View Post
I guess some have way more time and patience than I do... Oh, well. Each to their own.



The opamps in the MiniDSP 4x10HD does not use a common footprint. The DMP8 footprint does not fit anything else that I'm aware of. If I was to replace those opamps, I'd probably go for an OPA1612.

Tom
Dear Tom Minidsp OPamp not come with DMP8 https://www.njr.com/semicon/PDF/package/DMP8_E.pdf

it come with (SSOP8) https://www.njr.com/semicon/PDF/package/SSOP8_E.pdf
SSOP8 smaller than DMP8

Dmp8 it close with soic8.
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Old 16th December 2017, 04:19 AM   #77
tomchr is offline tomchr  Canada
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You know... That's probably true. I do recall the pins being closer than the 1.27 mm of the DMP8. 0.65 mm sounds about right. I think that's the same as TSSOP, though I recall the package used in the 4x10HD being wider than TSSOP.

Maybe you can find an opamp in a TSSOP package and make it work.

Tom
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Modulus-686: 240W/8Ω @ <0.00025% THD. Modulus-86: 40W/8Ω @ 0.000054% THD. DG300B & Other Tube Circuits.
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Old 16th December 2017, 11:18 PM   #78
Peter S is offline Peter S  Canada
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Hi Folks;
Hope I'm not high-jacking the thread, but I saw "miniDSP 4x10". This unit has been the heart of my system for over a year. ( I bought a complete finished unit). I have had an issue with this unit from day one, and wonder if anyone else has had this issue;

Almost daily, when I turn on the rest of my system (DSP stays on), I find the volume control (front panel and via remote) to be ineffective. On some occasions, the volume can be adjusted, but it hesitates every 3 db or so. There have been some instances where the sound has been distorted (modulated by clicks etc.) All of this is remedied by unplugging the power input for 10 seconds and re-connecting.
I have done 'factory resets' and had a number of interactions with customer service at miniDSP, but the problem remains.
Sorry to interupt, but has anyone had the issue? I have no digital experience but I have a strong suspicion that this is a hardware issue re the volume control PCB.

Thanks, Peter in Canada
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Old 17th December 2017, 03:35 AM   #79
Jim the Oldbie is offline Jim the Oldbie  United States
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MiniDSP 4x10 HD Measurements
I haven't been using my 4x10 lately, but I never had any of those troubles when it was in regular use, sorry.
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Old 17th December 2017, 04:14 PM   #80
tomchr is offline tomchr  Canada
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Mine's been permanently plugged in for about two years now, I think. No issues here.

I have had it lose lock when switching digital sources (i.e. unplugging the coax cable), which required a hard reset (turn off, turn back on), but that's it.

Tom
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Modulus-686: 240W/8Ω @ <0.00025% THD. Modulus-86: 40W/8Ω @ 0.000054% THD. DG300B & Other Tube Circuits.
Neurochrome : : Audio - www.neurochrome.com - Engineering : : Done : : Right
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