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Author Topic: DPA MPS6010  (Read 179 times)

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Offline jerryfreak

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DPA MPS6010
« on: July 22, 2019, 11:26:46 PM »
can this circuit be tweaked?

its a dual purpose battery box that can either transform P48 from the xlrs into microdot power, or use the 9V to provide microdot power. problem being, like other DPA solutions its drops the voltage from 9V to ~2.5V under load. Ive been told by Bruce Myers and Len and others that best results for mini DPAs is ~8V. Im not sure about the new microdot-powered full sized actives, hard to get a straight answer from DPA anymore

so id like to:
a)increase voltage to mic by swapping some resistors
b)pull off an unbalanced out and put a female trs jack in the case. would i just pull off pin 2 and leave pin 3 float in that case?

the red caps are larger than the purple ones. red are non-polarized, purple are polarized, both are 50V 10uF. From the XLRs black=pin1, red=pin2, yellow=pin3. the black and red wires at the top of the first pic go to the microdot mic connectors

the entire perimeter of that board layout as well as the two cross-connections under the resistors are all ground common to the battery, XLRs, and microdot connections

not sure what the small gold things are, i get random resistance measurements on those which should be a symmetrical 2-channel circuit. are they small caps or something?





« Last Edit: July 22, 2019, 11:56:49 PM by jerryfreak »
in:
small: MK4/4V > CMR > V3 or J.Williams Mod MicMan Jr or no pre at all >AD2K/R07/PCM-A10/Oade Warm 661/DR100-MKIII

smaller: 4061/4099 CORE or 4011/4018V> d:vice MMA



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shop: Musical Fidelity VLink 192 Asynchronyous> coax> DAC1 > Rokit RP8 active monitors

Offline jerryfreak

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Re: DPA MPS6010
« Reply #1 on: July 22, 2019, 11:39:57 PM »
some of the hidden traces illustrated in pink

in:
small: MK4/4V > CMR > V3 or J.Williams Mod MicMan Jr or no pre at all >AD2K/R07/PCM-A10/Oade Warm 661/DR100-MKIII

smaller: 4061/4099 CORE or 4011/4018V> d:vice MMA



out:
home:Benchmark DAC1 HGC > Dynaudio BM15A active monitors
shop: Musical Fidelity VLink 192 Asynchronyous> coax> DAC1 > Rokit RP8 active monitors

Offline Sebastian

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Re: DPA MPS6010
« Reply #2 on: Yesterday at 01:58:07 AM »
not sure what the small gold things are, i get random resistance measurements on those which should be a symmetrical 2-channel circuit. are they small caps or something?

Could these be diodes?
Schoeps { MK6 | MK41V | MK4 } > NBob actives > {Naiant Tinybox v2.0 | Naiant IPA | Naiant PFAs} > {Sound Devices MixPre-6 | Sony PCM-A10 | Sony PCM-M10 | Tascam DR-2d}

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Offline jerryfreak

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Re: DPA MPS6010
« Reply #3 on: Yesterday at 02:46:58 AM »
not sure what the small gold things are, i get random resistance measurements on those which should be a symmetrical 2-channel circuit. are they small caps or something?

Could these be diodes?

interesting ill test them with diode beep tester
in:
small: MK4/4V > CMR > V3 or J.Williams Mod MicMan Jr or no pre at all >AD2K/R07/PCM-A10/Oade Warm 661/DR100-MKIII

smaller: 4061/4099 CORE or 4011/4018V> d:vice MMA



out:
home:Benchmark DAC1 HGC > Dynaudio BM15A active monitors
shop: Musical Fidelity VLink 192 Asynchronyous> coax> DAC1 > Rokit RP8 active monitors

 

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