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POWER AMPLIFIER SECTION
All-Tube Power Amplifier:
(8) 6550 power tubes
Driver:
(1) 12AT7
Input Stage and Phase Splitter:
(2) 12AX7s
Rated Power:
400 watts RMS into 4 or 8 ohm with 120 V AC 60 Hz line
Power at Clipping: (typically)
420 watts RMS into 4 or 8 ohm load @1 kHz with
120 V AC line
Sensitivity:
1 V RMS/0 dB
Hum and Noise:
greater than 85 dB below rated power
Power Consumption:
Domestic: 1000 watts, 50/60 Hz, 120 V AC
Export: 1000 watts, 60 Hz, 220-230/240 V AC
DDT Power Amplifier Compression:
No solid state devices in signal path
PREAMP SECTION
(3) 12AX7s
Control settings for the following measurements:
Channel Select: Out (Clean channel)
Channel Combine: Out
-10 dB Pad: Out
Clean Channel Settings:
Pre Gain: 5
Low: 5
Mid: 5
Mid Shift: 600 Hz
High: 5
Low Cut: Out
Low Boost: Out
High Boost: out
Crunch Channel Settings:
Pre Gain: 5
Low: 5
Mid: 5
High: 5
Low Boost: Out
High Boost: Out
SPECIFICATIONS
Due to our efforts for constant improvements,
features and specifications listed herein are subject to change without notice.
Input Sensitivity:
Clean Channel
Nominal: 90 mV RMS / -20.92 dB
Minimum: 16 mV RMS / -35.92 dB (Pre Gain set at 10)
Maximum: 1.5 V RMS / 3.52 dB
Crunch Channel
Nominal: 80 mV RMS / -21.94 dB
Minimum: 6 mV RMS / -44.44 dB (Pre Gain set at 10)
Maximum: 1.5 V RMS / 3.52 dB
Tone Controls:
Passive type controls used in both the Clean and
Crunch channels
Preamp Out/Power Amp In Jacks:
Preamp Out
Load Impedance: 1 K ohm or greater
Nominal Output Level: 1 V RMS / 0 dB
Power Amp In
Impedance: 22 K ohms
Nominal Input Level: 1 V RMS / 0 dB
(Switching jack provides Preamp out to Power Amp in
connection when not used.)
XLR Jack:
600 ohm transformer balanced
Nominal Pre EQ Send: Output buffered from input jack
Nominal Post EQ Send: 870 mV RMS, -1.2 dB
Effects Loop:
Send
Load Impedance: 1 K ohm or greater
Nominal Output Level: 316 mV RMS, -10 dB
Return
Impedance: 500 K ohms
Nominal Input Level: 316 mV RMS, -10 dB
(Switching jack provides Effects Send to Effects Return
connection when not used.)
Footswitch Functions:
Channel Select
Channel Combine
Effects Loop selection
(Note: Front panel buttons for Channel Select and Channel
Combine must be in the "out" position for footswitch to
function properly.)
Dimensions & Weight:
11.00" H x 24.75" W x 17.125" D
93.6 lbs.
TM
®
7
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