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M³ Gallery - Page 1
Here is an area showcasing M³ amplifiers from people like you!
The unusual, the exotic, even the mundane... As long as you like what
you built, then why not show it off? To have your M³ featured here,
contact AMB.
New photos are added often, so come back to see the creative work of
the M³ builders community. Have fun!
Click on any image to see a larger version.
AMB's M³
Here are some pictures of AMB's own M³ prototype, wrapped
in a custom home-built case. The styling and construction follows the
same theme as AMB's modified SDS Labs MOSFET amplifier, the
"β18". The circuit board
is a pre-production version with no solder mask or silkscreen.
This amp has AD8610AR opamps, Vishay-Dale RN55D resistors,
Vishay-Roederstein MKT1817 for C2 and C8, Wima MKP2 for C6 and Cbb,
and Nichicon HE electrolytics. The MOSFETs are biased to 85mA per channel.
A companion
STEPS 27V regulated DC supply is used to power this
amplifier.
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Three M³s by rjkdivin
Here are three M³ amplifiers built by
rjkdivin. This first one, and
a companion Tangent STEPS power supply, are each housed in a black
Silverstone LC01 Nano-ITX computer case.
Custom rear panels were fabricated to replace the originals,
which came with cutouts for computer connections. The second one
has the M³ amplifier and STEPS PSU board both mounted in a
Par-Metal 20-series
12"x8"x2.5" case. The third one has separate
Par-Metal 20-series 6"x8"x2.5" cases for the amplifier
and PSU, this one uses a
Welborne Labs PS1 power supply.
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MisterX's M³
MisterX
built this stylish M³ in a
ATI 645T case,
shortened
to the desired size. This amplifier features
a DaCT CT2 stepped attenuator volume control, Elna Cerfine
electrolytic capacitors, AD8065 opamps, and a Condor Power-One PSU at 24V.
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M³ by steinchen
This M³, built by
steinchen, is housed in an enclosure from
Segor Electronics
(part number 001.07.L.SW), with a custom front panel made by
Front Panel Express. Two headphone jacks are
installed, one for standard headphones, and one specifically for the
AKG K1000. Vishay-Dale RN55 resistors are used in most locations
as well as Wima film capacitors.
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steinchen2.jpg
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Skyskraper's M³
Skyskraper built his M³ in an
Altronics 19" 2U rack-mount case in raw
aluminum finish. The amplifier is powered by a Tangent TREAD
board and a 30VA toroidal transformer. An input selector
switch allows a choice of multiple inputs and jack types,
a DC output jack provides power to external devices, and the
front panel has jacks for two pairs of headphones.
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"Lunchbox" M³ by phobus
This unique M³ from
phobus
runs a voltage gain of 5.5, has OPA637BPs for the left and right channels,
OPA627AP on the ground channel, Vishay-Dale RN55E resistors, Vishay-BC MKT370
for C2 and C8, Wima MKP2s for C6 and Cbb, and Panasonic FM
electrolytics. The MOSFETs are biased to 108mA per channel, and
the amp is powered by a Velleman K1823 PSU at 24V.
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