NC 2125v2 Power Amp
Clean Power You Can Feel
Drop the NC 2125v2 into your system and the whole presentation tightens up. 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.
What listeners say
- “…drives my speakers to very loud levels and barely gets warm—amazing amp.”
- “dynamic, precise and detailed”
All Channels Driven: 150W x 2 (8Ω), 225W x 2 (4Ω), 225W x 2(2Ω Load switch set to 2-3Ω)
Bridged Mono: 400W x 1 (8Ω), 400W 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, 0.25% at full rated output, 0.015% at average listening levels
IM Distortion: 0.05 %
Transient IM Distortion: Not measurable
S/N Ratio Rated Output: 114 dB (IHF A-weighted), 106 dB (unweighted)
S/N Ratio 2.828V Output: 93 dB (IHF A-weighted), 84 dB (unweighted)
Input Impedance: 33 kΩ
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 Requirements: 110 - 120 V / 220 -240 V, 50 - 60 Hz
0.5 watts standby
32 watts Idle (no audio)
550 watts full output
Dimensions:
Width: 17.25"
Depth: 14" Chassis Only, 15" Chassis and Speaker Terminals, 16" Deep with cables connected
Height: 4.25" 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
- 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)
HiFi Voice (Czech Republic) October 2015
"This combination of audio performance without the use of tone controls or filters is dynamic, precise and detailed. Control is evident across the audio spectrum even at high volume where there is sufficient power in reserve. Futhermore, there is no loss of resolution, even with quieter music and low level listening. Parasound manages to reproduce the essence of the vast majority of commercial recordings and various genres on CD or the stereo audio tracks on DVD or BluRay that would satisfy even the most demanding listener. I think the audience appreciated the especially strong, dynamic sound with superb control of bass at all volume levels and an imperceptible loss of the finest details on several audiophile SACDs."