A vVrsatile Power Amplifier

Parasound's NewClassic 2125 v2 is flexible enough to work in many different audio applications. It delivers 150 watts per channel and has two sets of binding posts for connecting speakers. You can use it as a classic stereo amp for two-channel listening,set up A and B speaker pairs in two different rooms, or combine it with additional 2125 amplifiers for THX Ultra2 certified home theater sound. This slim-but-powerful amp can also be bridged to 400 watts mono to drive a single speaker.

Features

- THX Ultra2 certified

- 150 watts x 2 into 8 Ω (all channels driven)

- 225 watts x 2 into 4 Ω or 2 Ω (all channels driven)

- 400 watts x 1 bridged into 8 Ω or 4 Ω

- 35 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

- 2U rack mount kit available separately (Model RMK22)

Parasound NewClassic 2125 v.2 Amplifier User's Manual

Specifications

All Channels Driven 
150 watts x 2, 8Ω 
225 watts x 2, 4Ω 
225 watts x 2, 2Ω (Load switch set to 2-3Ω)

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

Current Capacity: 35 amps peak per channel

Frequency Response: 20 Hz - 50 kHz, +0/-3 dB, 1 watt 
Dynamic Headroom - 1.3 dB

Total Harmonic Distortion 
0.25% at full rated output 
0.015% at average listening levels

IM Distortion - 0.05 % 
Transient IM Distortion - Not measurable

S/N Ratio 
114 dB at rated output, IHF A-weighted 
106 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 
1 V in for 28.28 V out, THX standard

Inter-Channel Crosstalk 
85 dB @1 kHz, 73 dB @10 kHz, 67 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 
32 watts Idle (no audio) 
550 watts full output

Dimensions 
   171/4" Wide 
   16" Deep, with cables connected 
   4.25" High with feet, 3.5" panel only (2U) 
   (437 x 406 x 107mm, 88.2 mm panel only)

Net Weight - 27 lbs (12.3 kg)

Rack Mount Accessory 
May be Purchased Separately: RMK22

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