darTZeel NHB-18NS

From AUD $110,000.00

Stereo Pre-amplifier

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With its ground-breaking signal path technology, battery power supply and unrivalled phono stages, the NHB-18NS is still the benchmark for preamplifiers. Its unique circuit board layout allows each optical input to be activated separately. The absence of global negative feedback ensures an ideal and uncompromising listening experience. Each aluminium component is milled from a solid block, hand-finished, brushed and anodised.

The darTZeel NHB-18NS is the logical partner to the now legendary NHB-108 model one power amplifier. In keeping with the very same philosophy, darTZeel uses dedicated circuits reduced to their most basic form. The delicate, small audio signal amplified by the NHB-18NS only passes through 7 silicon junctions from input to output, including the 11 dB full discrete gain stage. For the phono stage, only add 6 junctions are added, for a maximum additional boost of 66 dB (77 dB in total). The advantages of these new circuits, whose designs are patented, produce an extreme, pure sound quality never achieved before. One of the results of this attention to detail is the sheer dynamic speed, transparency, the attack and decay of each note and the silence in between.

Machined from a solid block and held comfortably in your hand, the NHB-18NS remote control provides access to its key functional features.

The NHB-18NS is peerless in terms of clarity and musicality. Designed to control NHB-series power amplifiers, it offers state-of-the-art preamplification and control. The peerless workmanship result in a device that is a functional work of art.

For those not acquainted… NHB means ‘Never Heard Before’ and the NS bit means ‘No Switch’. Read the reviews and speak to owners of this heirloom piece of audio heaven and you will discover that the darTZeel NHB-18NS may as well have been called “MEPEC”.
(Most Enjoyable Preamplifier Ever Created).


Mono / Stereo Editors Choice Award Hi-Fi News Outstanding Product Award Hifi Critic Audio Excellence Award


darTZeel NHB-18NS - Stereo Pre-amplifier

Product Specification

Type Pre-amplifier
Line Gain Up to + 11 dB
Analog Input Impedances Zeel BNC 50 ohms from 1Hz to 1 MHz
RCA line > 30 kohms, from 5 Hz to 50 kHz
XLR Line > 15 kohms, from 5 Hz to 50 kHz
Phono MC : User select from 43 ohms up to 47K ohms
Line Output Impedances RCA = 75 ohms, darT BNC = 50 ohms, XLR < 600 ohms, REC OUT < 150 ohms
Frequency Response 5 Hz – 500 kHz, +0, -1 dB
Rise Time < 0.5 µs
Slew Rate > 24 V/µs, peak-peak
Total Harmonic Distortion (THD) < 1 % from 10 Hz to 100 kHz within the output dynamic range
Temporal Distortion None, at any level and load, as specified above
Crosstalk < – 80 dB from 20Hz to 20kHz
Signal to noise ratio > 92 dB (A), Line; > 70dB (A), Phono w/factory settings
Power consumption 7 – 77 watts depending on working conditions
Fuse ratings 115 volts: 1.0A (T) or slow blow
230 volts: 0.5A (T) or slow blow
Size in mm 440 (W) x 335 (D) x 170 (H)
Total depth with handles: 415mm
Size in inches 17.32 (W) x 13.2 (D) x 6.7 (H)
Total depth with handles: 16.4 inches.
Net weight 24kg + Power Supply 3kg = Total 27kg (59.5lbs)