condition Acoustic Plan DigiMaster DAC, DriveMaster transport in
special edition silver faces, and power supply.
Original 15amp power cable, dedicated IS2 umbilical between DriveMaster
and DAC and connector cables to power supply.
Second owner, purchased directly from Pitch Perfect Audio.
transport DriveMaster (retail price $4750) is equipped with the famous CDPro2, also
used in studios, test equipment and continuous music reproduction units.
Together with the special suspension of the drive module a highly accurate
readout is ensured. The DriveMaster has two digital outputs, a SPDIF output
with BNC connector and a non-standard I2S output. The I2S connection direct to
the D/A converter DigiMaster allows a direct data transfer without converting
and converting back of the SPDIF signal.
The DriveMaster includes a compact remote.
DigiMaster DAC (retail price $4750) has both USB as well as the SPDIF inputs,
both have 192kHz/24 bit receivers and they pass on the data stream to the
24-bit R2R PCM1704U-K converter. Neither upsampling nor oversampling is used
and this keeps the data as pure as possible. The USB data transfer works in an
asynchronous mode, whereby the clock is determined by the high precision clock
generator in the DigiMaster.
minimalist philosophy of the circuit design is continued in the analogue filter
and in the analogue output stage. For that reason, only analogue filters are
used to cut off the undesirable ultrasonic frequency range. Depending on the
sampling rate, the filters are switched to the proper cut off frequency. The
analogue filters consist of custom-made precision inductors and capacitors. A
pure tube output stage amplifies the small analogue signals and provides a low
output impedance to partnering electronics.
of both devices (DigiMaster and DriveMaster) is developed "in house"
exclusively by Acoustic Plan.
an upgrade, the external power supply (retail price $2000) with linear
regulation of Acoustic Plan’s own production is also included. This power
supply is able to supply two devices of the Master series.
price of set is $11,500; asking $5200 in perfect mint condition. See reviews below.