Model 275 v.2

  • 90 watts x 2 into 8 Ω (all channels driven)
  • 150 watts x 2 into 4 Ω or 2 Ω (all channels driven)
  • 200 watts x 1 bridged into 8 Ω or 4 Ω
  • 20 amps peak current per channel
  • 2 Ohm stable operation with load selector switch
  • Two pairs of speaker outputs with front panel A/B buttons
  • Rear-mounted lockout switch disables front A/B buttons
  • High pass filter, switchable for 20Hz or 40Hz
  • Automatic on/off by DC trigger with looping output
  • Automatic on/off by audio signal with 2 sensitivity settings
  • Fully discrete circuitry with high current toroid transformer
  • Bridging switch for stereo or mono operation
  • Efficient, low heat design
  • DC Servo and relay protection circuits
  • Rear-mounted left and right gain controls
  • Standby, channel status and high temperature indicators
  • Gold-plated RCA input jacks
  • Heavy duty 24k gold-plated 5-way speaker terminals
  • 115/230v selector on rear panel
  • 1U rack mount kit available separately (Model RMK11)

Power Output - (RMS power, 20 Hz - 20 kHz)
All Channels Driven
90 watts x 2, 8Ω
150 watts x 2, 4Ω
150 watts x 2, 2Ω (Load switch set to 2-3Ω)

Bridged Mono
200 watts x 1, 8Ω
200 watts x 1, 4Ω (Load switch set to 2-3Ω)

Current Capacity
20 amps peak per channel

Frequency Response
20 Hz - 50 kHz, +0/-3 dB, 1 watt

Dynamic Headroom - 1.3 dB

Total Harmonic Distortion
0.35% at full rated output
0.025% at average listening levels

IM Distortion - 0.05 %

Transient IM Distortion - Not measurable

S/N Ratio
110 dB at rated output, IHF A-weighted
103 dB at rated output, unweighted
93 dB at 2.828 V output, IHF A-weighted
84 dB at 2.828 V output, unweighted

Input Impedance - 33 k Ω

Input Sensitivity
800 mV for full rated output (28dB)

Inter-Channel Crosstalk
80 dB @1 kHz, 72 dB @10 kHz, 65 dB @ 20kHz

Damping Factor - Over 150 at 20Hz

12V Trigger Turn On - DC 9 - 12V, 15 mA

Audio Turn On
Quieter: 1 mV
Louder: 6 mV

AC Power Requirement
110 - 120 V / 220 -240 V, 50 - 60 Hz
0.5 watts standby
25 watts Idle (no audio)
350 watts full output

Dimensions
17-1/4" Wide
16" Deep, with cables connected
2-1/2" High with feet, 1-3/4" panel only (1U)
(437 x 406 x 63mm, 44.1 mm panel only)

Net Weight - 20 lbs (9.1 kg)

Rack Mount Accessory
May be Purchased Separately
RMK11

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