Power, elegance and grace. darTZeel's NHB-468 monoblock amplifiers represent the pinnacle of our range. Travel faster than the speed of thought with the NHB-468.

NHB-468 monoblocks are the most powerful amplifiers ever designed and built by darTZeel. They are the culmination of nine years' research and development.NHB-468 mono amplifiers retain all the musicality of the original signal. The NHB-468's immense power supply ensures that they can cover the full dynamic range, providing effortless delivery from a few milliwatts through to a whopping kilowatt of power.

Nominal Output Power:
500 watts RMS ( 850 watts peak)@ 8 ohms
900 watts RMS ( 1700 watts peak)@ 4 ohms
1200 watts RMS ( 1800 watts peak)@ 2 ohms (software limited)

Power Stage Gain: 26 dB and 32 dB, user selectable (ref. 8 ohms.)

Analog Input Impedances:
1 x BNC Zeel 50 ohms, 1 Hz to 1 MHz
1 x RCA line > 30 kohms, 5Hz to 100kHz
1 x XLR > 30 kohms

Speaker Output Impedance < 0.28 ohms from 20 Hz to 20 kHz (measured under 8 ohms)

Frequency Response: 0.7 Hz - 700 kHz, +0, -3 dB

Rise Time < 0.8 µs

Slew Rate > 200 V/µs, peak-peak

DC Output Voltage < ± 50 mV max

Total Harmonic Distortion (THD) < 1 % from 7 Hz to 77 kHz within the output dynamic range

Temporal Distortion: None, at any level and load, as specified above

Signal to noise ratio > 115 dB (A) @ nominal power

Power consumption: 2 watts Standby, 40 watts @ idle, 2000 watts @ maximum output power

Size in mm: 277 x 511 x 460 (WxDxH)

Net weight: 70 Kg

The NHB-468 highlights more than ever darTZeel's considerable expertise: a generous power supply, a shielded transformer suspended by a dedicated platform, a chassis built from specially extruded aluminium components in line with darTZeel specifications, toughened glass side panels with a sanded logo, and a cooling unit finished and polished by hand.

Every detail makes the darTZeel NHB-468 an exceptional amplifier. The casing alone required more than 80 hours of machining, with the same amount of time allocated to finishing, anodising and final assembly. The NHB-468's specially developed audio circuits offer unparalleled musical output, from 0.001 to 1,000 watts and beyond. Listening to music without limits is now a reality.


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