The Model 275 v.2 is the perfect amplifier for smaller rooms with its 90-watt-per-channel output at 8 ohms and 150 watts at 4 ohms. It will also deliver 200 watts into 8 ohms or 4 ohms in bridged mono mode. And it boasts 30 amps of peak current per channel for superior resolution of demanding musical peaks. The sound quality is pure Parasound pleasure, of course.
Features & Specifications
- 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
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 channelFrequency Response
20 Hz – 50 kHz, +0/-3 dB, 1 wattDynamic Headroom – 1.3 dBTotal Harmonic Distortion
0.35% at full rated output
0.025% at average listening levelsIM 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)