Dartzeel
DarTZeel NHB-468 Reference Monoblock Amplifiers (Pair)
DarTZeel NHB-468 Reference Monoblock Amplifiers (Pair)
Gold/Red
22 Saint Kilda Road
22 Saint Kilda Road
Suite 2.02
St Kilda VIC 3182
Australia
Country of origin: Switzerland
darTZeel NHB-468 Mono Amplifiers
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.
The most powerful amplifiers ever developed by darTZeel.
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.
Musical escape without compromise
We like to say that the NHB-468s are faster than the speed of thought.
State of the art
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.
Swiss precision
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.
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)
Size in inches:
11 x 20 x 18 (WxDxH)
Net weight:
70 Kg
Nominal Output Power
150 watts RMS @ 8 ohms
225 watts RMS @ 4 ohms
Power Stage Gain
26 dB @ 8 ohms
Analog Input Impedances
BNC Zeel 50 ohms, 1 Hz to 1 MHz
RCA line > 30 kohms, 5Hz to 100kHz
XLR > 30 kohms
Speaker Output Impedance
< 0.33 ohms from 20 Hz to 20 kHz (measured under 8 ohms)
Frequency Response
0.8 Hz - 600 kHz, +0, -3 dB
Rise Time
< 0.8 µs
Slew Rate
> 88 V/µs, peak-peak
DC Output Voltage
± 50 mV
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
Crosstalk
< - 90 dB from 20Hz to 20kHz
Signal to noise ratio
> 112 dB (A) @ nominal power
Power consumption
50 watts @ idle, 900 watts @ maximum output power
Size in mm
440 x 350 x 170 (WxDxH). Total deep with handles : 415mm
Size in inches
17.32 x 13.78 x 6.7 (WxDxH). Total deep with handles : 16.4 inches
Net weight
30 kg