Output Power Rating: 400 Watts RMS @ 8 ohms, 10% THD (includes preamp O/D THD) [note 1]
800 Watts RMS @ 4 ohms, 10% THD (includes preamp O/D THD) [note 1]
800 Watts RMS @ 2 ohms, 10% THD (includes preamp O/D THD) [note 1]
Signal to Noise Ratio: BOOGIE Channel: -67dB (20-15kHz, unweighted, controls at 12:00 positions)
SUBWAY Channel: -69dB (20-15kHz, unweighted, controls at 12:00 positions)
Available Gain (nominal): BOOGIE Channel: 42dB (low gain), 50dB (high gain) [note 2]
SUBWAY Channel: 46dB (low gain), 53dB (high gain) [note 2]
Maximum Undistorted Input Level: BOOGIE Channel: -12dBu /200mV (low gain), -18dBu /100mV (high gain) [note 2]
SUBWAY Channel: -2dBu /600mV (low gain), -13dBu /175mV (high gain) [note 2]
Switched Tone Shape Filters: DEEP: +4dB at 50Hz (moderately interactive with HPF and Bass EQ)
BRIGHT: +2.5dB at 2kHz (moderately interactive with Mid and Treble EQ)
High Pass Filter: 2 pole fixed, 2 pole variable, 24dB/octave, 25Hz – 125Hz
Equalization: Boogie Channel: Bass/Mid/Treble: Interactive legacy Mesa Boogie tonestack
“flat” is approx: Bass = 8:30, Middle = 5:00, Treble = 8:00 (classic position)
“flat” is approx: Bass = 10:30, Middle = 5:00, Treble = 9:30 (shift position)
Subway Channel: Bass: +14dB/-14dB@40Hz, shelving, Treble:+14dB/-14dB @ 4kHz, shelving [note 3]
Parametric Middle Band: +14dB/-14dB, peak/dip @ selected band center
Instrument Input Impedance/Sensitivity: >1 Meg ohm, >-10dBu nominal, (gain & master at 12:00)
Aux Input Impedance/Sensitivity: 10 K ohm, +4dBu [note 4] (post master volume controls)
Effects Return Impedance/Sensitivity: 20 K ohm, +4dBu [note 4]
Effects Send Impedance/Sensitivity: <1 K ohm, +4dBu [note 4]
DI Output Impedance/Sensitivity: <1 K ohm, -28dBu mic position, -10dBu line position [note 4]
Power Amp Damping: ~50 at 2, 4 or 8 ohms [note 5]
Preamp Tube/Valve Complement: 12AT7 or 12AU7, V1 = input amp, V2 = Boogie Channel, V3 = Subway Channel [note 6]
Power Requirements: 100-120/220-240 VAC, 50/60Hz, 250W, auto-ranging power supply
Size: 12.00 (305mm) wide x 10.15” (258mm) deep x 3.45” (88mm) high [note 6]
Weight: approx. 7 lbs (3.18 kg)
[note 1]: area under the curve, with preamp harmonics management, >25% duty cycle, impedance switch set to match load, 12AU7 tube type
[note 2]: gain/volume controls set to the 12:00 position
[note 3]: measured approx. 1 octave from knee
[note 4]: nominal levels, there’s typically a min. of 12dB of addtl. gain for signals below, and 12 dB of headroom above nominal levels
[note 5]: < 1kHz
[note 6]: Circuits optimized for 12AT7/12AU7 tubes/valves, measurements made with 12AT7. (12AX7 tube type not recommended)
[note 7]: chassis only, not including feet and controls
Mesa Boogie continually develops new products and improves existing ones. For this reason, specifications and information in this
manual are subject to change without notice.
Specifications
PAGE 20
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