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Power Bandwidth: 5 Hz -50 KHz
Total Harmonic Distortion: 0.2% or less (A-weighted)
Input Topology: Balanced Differential
Input Sensitivity: 500mV - 12 volts RMS
Input Impedance: 10K Ohms
Output Impedance: 2 - 16 Ohms, bridged 4 - 32 Ohms
Specifications
The TD2200PRO and TD225A amplifiers represent a radical new approach
to mobile audio. All voltage gain stages are completely vacuum tube-10
tubes in all! Other than the output devices themselves, there are no solid
state devices in the audio path. Specific types of Svetlana tubes were chosen
for their application in the audio section. 6N1P tubes were chosen for their
high gain. 6SN7 tubes are ideal as cathode followers at the output of the
preamp increasing current capability. 6L6GC tubes provide the high current
and power used to drive the solid state output stage. In the coupling stages
only audiophile quality polypropylene capacitors are employed. The input
connections of the amplifiers include balanced Mini-DIN and Gold plated
RCAs. The amplifiers also have the ability to accept high voltage inputs
with the aid of a built in 12dB attenuator and be operated in a “Mixed Mono/
Stereo Mode”.
The TD225A features increased bias in the output stage providing true
“Class A” operation. The high voltages available from the gain stages ensure
the highest possible linearity in the output signal. Fully regulated adaptive
MosFET power supplies are used to provide the necessary voltages and
current. The power supply circuits are optimized to limit the substantial
heat generated by Class A operation. Class A amplifier designs are regarded
by most high end home audio companies as the benchmark for sound quality.
200 WRMS x 2 @ 4 Ohms / channel 25 WRMS x 2 @ 4 Ohms / channel
400 WRMS x 2 @ 2 Ohms / channel 50 WRMS x 2 @ 2 Ohms / channel
800 WRMS x 1 @ 4 Ohms / channel 100 WRMS x 1 @ 4 Ohms / channel
Length = 33.4 Length = 33.4”
Height = 3.2” Height = 3.2”
Width = 9.25” Width = 9.25”
TD2200PRO TD225A
TD2200PRO TD225A
Continuous Output Power
Dimensions
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