Parasound
Parasound NC 2125v2 Stereo Power Amplifier
Parasound NC 2125v2 Stereo Power Amplifier
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Description
Parasound's NC 2125vs Stereo Power Amplifier will tighten up your system's whole presentation. Voices lock center‑stage, bass gets punchy (not boomy), and big moments hit with the kind of ease that turns casual listening into “just one more track.” Designed for real‑world rigs, this compact 2U, Class‑AB workhorse delivers 150 W x2 into 8 Ω, 225 W x2 into 4 Ω, and bridges to 400 W mono. It’s THX Ultra2 certified, adds dual A/B speaker outputs with a front‑panel lockout, and is happy with tough loads thanks to 35 A peak current and a high‑current toroidal transformer. Integration is simple: Gold-plated RCA input jacks, 12 V trigger or audio‑sense auto‑on, and a switchable 20/40 Hz high‑pass filter to protect smaller speakers or squeeze more headroom.
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)
- 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
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 channelFrequency Response
20 Hz – 50 kHz, +0/-3 dB, 1 watt
Dynamic Headroom – 1.3 dBTotal Harmonic Distortion
0.25% at full rated output
0.015% at average listening levelsIM 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)
