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M³ Gallery - Page 3
98venom's M³s
Two M³ by
98venom
are showcased here.
The first eight photos show the first one,
housed in a Hammond 1455T2202BK case with a
custom clear polycarbonate top cover. This amplifier features Cardas GRFA-S
RCA phono input jacks, Neutrik locking phone output jack, Vishay-Dale RN55
resistors, Nichicon Muse KZ electrolytic capacitors, Vishay-BC and
Wima film capacitors and AD8610 opamps. A companion STEPS power supply,
housed in a smaller Hammond case with clear polycarbonate top, is set
to 27VDC.
The second one, shown in the next eight photos, is a pre-amplifier
and headphone amplifier. This amplifier has similar resistors and
capacitors as the first amp, but uses OPA637/OPA627 opamps.
The case is from
DIY Fidelity,
the volume control is a 50KΩ stepped attenuator, and the input
selector is a
DACT
CT3 rotary switch.
Kilo
knobs are used for the
selector and volume. The power supply is an internal STEPS set to 30VDC.
98venom1.jpg
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98venom2.jpg
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98venom3.jpg
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98venom4.jpg
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98venom5.jpg
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98venom6.jpg
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98venom7.jpg
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98venom8.jpg
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98venom9.jpg
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98venom10.jpg
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98venom11.jpg
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98venom12.jpg
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98venom13.jpg
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98venom14.jpg
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98venom15.jpg
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98venom16.jpg
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M³ by auuc
The unique enclosure with the M³ logo cutout on the top cover
distinguishes this build by
auuc
of Taiwan.
Inside, the amplifier features Vishay-BC 0.1% resistors, ERO 5W resistors,
Wima and Rifa MMK film capacitors, Nichicon Muse KZ electrolytic capacitors,
OPA637/AD8610 opamps, and Cosmos volume control potentiometer. The power
supply is an
Ultimate Mini Regulator
fed by a large toroidal transformer.
auuc1.jpg
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auuc2.jpg
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auuc3.jpg
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auuc4.jpg
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auuc5.jpg
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auuc6.jpg
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auuc7.jpg
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auuc8.jpg
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M³ by darkisz
For unrestricted cooling,
darkisz
used a custom perforated steel sheet as
the top cover for his M³, which is housed in a Hammond 1455T2201BK
enclosure. The amplifier features Vishay-Dale RN55 resistors, Vishay-BC
and Wima film capacitors, Nichicon UPW electrolytics, AD8610 opamps,
Alps RK27 potentiometers, Neutrik 1/4" output jack and Deltron gold RCA
input phono jacks. The power supply is a TREAD with a 24V 500ma wall adapter.
darkisz1.jpg
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darkisz2.jpg
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darkisz3.jpg
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darkisz4.jpg
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darkisz5.jpg
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darkisz6.jpg
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darkisz7.jpg
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darkisz8.jpg
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cook's M³
This clean M³, built by
cook,
is housed in a 12"Wx8"Dx2"H clear alodine
Par-Metal enclosure. The M³ is powered by a STEPS with Amveco 70062
toroidal transformer. A thin
HDPE sheet
isolates whole top cover and sides,
because the top of the MOSFET heatsinks come very close to the
top cover. This makes the cover a very tight fit. An isolating plastic
sheet is also used beneath the circuit boards.
cook1.jpg
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cook2.jpg
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cook3.jpg
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cook4.jpg
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cook5.jpg
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cook6.jpg
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M³ by dennis
This M³, built by Dennis Lin, is housed in a unique custom, tower-style
chassis. It prominently features a laser-cut M³ logo on the
stainless-steel top plate.
The MOSFETs are mounted from the bottom of the board, and attached to a large
heatsink, allowing for 130mA of quiescent current with ample cooling.
The voltage regulator is based on the
UCC mini regulator from Taiwan, and
two extra 4700uF electrolytic reservoir capacitors were added.
The opposite side chassis heatsink provide cooling for the regulator
transistors. Dennis used OPA627BP opamps in this build.
dennis1.jpg
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dennis2.jpg
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dennis3.jpg
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dennis4.jpg
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dennis5.jpg
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dennis6.jpg
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dennis7.jpg
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dennis8.jpg
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M³ by ntrl
This M³, built by
ntrl
of St. Petersburg, Russia, is housed in a Hammond 1455T2201 case,
featuring a unique LED-backlit M³ logo on the front panel.
The amplifier uses AD8610
opamps, Nichicon and Wima capacitors, and is powered by a 24V STEPS housed
in a separate case.
ntrl1.jpg
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ntrl2.jpg
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ntrl3.jpg
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ntrl4.jpg
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ntrl5.jpg
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ntrl6.jpg
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ntrl7.jpg
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ntrl8.jpg
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