NC 2250v2 Power Amp
Studio-Level Two-Channel Power in a Compact Rack
The NC 2250v2 packs serious muscle into a 3U chassis—perfect for music lovers and home theater enthusiasts looking to upgrade without expanding their setup. It delivers clean, consistent performance even under heavy loads.
Designed for real‑world headroom, the NC 2250v2 delivers 275 W x2 into 8 Ω, 400 W x2 into 4 Ω (and 2 Ω with the load selector), or 750 W bridged mono, with Class‑AB topology, 45 A peak current, and THX Ultra2 certification. It adds dual A/B speaker outputs with lockout, a switchable 20/40 Hz high‑pass filter, Gold-plated RCA input jacks, and 12 V trigger or audio‑sense auto‑on.
Praised by reviewers
- “Movie and music sources bound into life when channeled through these chunks of steel.” — AVForums.
- “What goes in is literally what comes out.” — AVForums.
Awards & Recognition (with links)
-
AVForums — Highly Recommended (2023).
All Channels Driven
275 watts x 2, 8Ω
400 watts x 2, 4Ω
400 watts x 2, 2Ω (Load switch set to 2-3Ω)
Bridged Mono
750 watts x 1, 8Ω
750 watts x 1, 4Ω (Load switch set to 2-3Ω)
Current Capacity
45 amps peak per channel
Frequency Response
20 Hz - 50 kHz, +0/-3 dB, 1 watt
Dynamic Headroom - 1.6 dB
Total Harmonic Distortion
0.20% 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
35 watts Idle (no audio)
1000 watts full output
Dimensions
17.25" Wide
18.5" Deep, with cables connected
6" High with feet, 5.25" panel only (3U)
(437 x 470 x 153mm, 133mm panel only)
Net Weight - 43 lbs (19.5 kg)
Rack Mount Accessory
May be Purchased Separately: RMK33
- THX Ultra2 certified
- 275 watts x 2 into 8 Ω (all channels driven)
- 400 watts x 2 into 4 Ω or 2 Ω (all channels driven)
- 750 watts x 1 bridged into 8 Ω or 4 Ω
- 45 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
- 3U rack mount kit available separately (Model RMK33)
None published at this time