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Power amplifiers stereo — Dartzeel NHB-108 Model Two
Description, images, technical data and specifications
Dartzeel NHB-108 Model Two
Image source — © Dartzeel
The NHB-108 Model Two is a stereo power amplifier from Dartzeel, a Swiss manufacturer with a considerable reputation for uncompromising high-end electronics engineering, built with an exceptionally low output impedance and extraordinarily wide bandwidth. The NHB-108 Model Two brings Dartzeel's meticulous engineering to two-channel power amplification.
Key specs that matter
Input impedance is a high 30k ohms on both balanced and single-ended connections. Output impedance is an exceptionally low under 0.33 ohms single-ended - a remarkably low figure suggesting genuine ease of driving virtually any loudspeaker load without frequency-response variation. Output power is 150W into 8 ohms, rising to 225W into 4 ohms. Gain is 26dBu. Frequency response spans an extraordinary 0.8Hz to 600,000Hz within plus-or-minus 3dB - a remarkable bandwidth extending far beyond conventional audible range. Signal-to-noise ratio exceeds 112dB, with maximum power consumption at 900W. At 440 x 350 x 170mm and 30kg, the NHB-108 Model Two represents a substantial stereo amplifier commitment.
Sound and use context
Expect exceptional control and precision reflecting the exceptionally low sub-0.33-ohm output impedance combined with the extraordinarily wide 0.8Hz-600kHz bandwidth - Dartzeel's uncompromising Swiss engineering philosophy is fully evident throughout this specification.
Pairing
The exceptionally low output impedance eases compatibility with virtually any loudspeaker load, including the most demanding, revealing designs.
Alternatives
Dartzeel's broader amplifier catalogue offers alternatives for buyers wanting a different output level within the same uncompromising Swiss engineering philosophy.
Key specs that matter
Input impedance is a high 30k ohms on both balanced and single-ended connections. Output impedance is an exceptionally low under 0.33 ohms single-ended - a remarkably low figure suggesting genuine ease of driving virtually any loudspeaker load without frequency-response variation. Output power is 150W into 8 ohms, rising to 225W into 4 ohms. Gain is 26dBu. Frequency response spans an extraordinary 0.8Hz to 600,000Hz within plus-or-minus 3dB - a remarkable bandwidth extending far beyond conventional audible range. Signal-to-noise ratio exceeds 112dB, with maximum power consumption at 900W. At 440 x 350 x 170mm and 30kg, the NHB-108 Model Two represents a substantial stereo amplifier commitment.
Sound and use context
Expect exceptional control and precision reflecting the exceptionally low sub-0.33-ohm output impedance combined with the extraordinarily wide 0.8Hz-600kHz bandwidth - Dartzeel's uncompromising Swiss engineering philosophy is fully evident throughout this specification.
Pairing
The exceptionally low output impedance eases compatibility with virtually any loudspeaker load, including the most demanding, revealing designs.
Alternatives
Dartzeel's broader amplifier catalogue offers alternatives for buyers wanting a different output level within the same uncompromising Swiss engineering philosophy.
Specifications
Model name
NHB-108 Model Two
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
30 000
Input impedance (single-ended) (Ω)
30 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
<0.33
Max current (A)
N/A
Output power (8Ω) (W)
150
Output power (4Ω) (W)
225
Gain (dBu)
26
Frequency response low +/- 3dB (Hz)
0.8
Frequency response high +/- 3dB (Hz)
600 000
Signal to Noise Ratio (dB)
> 112
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
<1
Max power consumption (W)
900
Damping factor
N/A
Dimensions (mm)
440 x 350 x 170
Weight (kg)
30
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