darTZeel NHB-108 model one Owner's Manual
darTZeel NHB-108 model one Owner's Manual Page 2 of 17
Table of contents 1. 2. 3. 4. Introduction ....................................................................................................................... 5 Brief description................................................................................................................ 5 Who am I? ......................................................................................................................... 7 Connecting and setup ..........................................................
darTZeel NHB-108 model one Owner's Manual Page 4 of 17
darTZeel NHB-108 model one Owner's Manual in mind being sound reproduction, nothing but sound reproduction. 1. Introduction Congratulations for purchasing a darTZeel NHB-108 model one. Our machines are designed and hand built for very long lasting use and musical pleasure. Every basic element of the darTZeel NHB108 model one was chosen for its high intrinsic sound qualities. No compromise about the cost price was even contemplated.
FRONT PANEL 1 2 3 1. Identification Plate 2. The Eyes 3. The Power Nose REAR PANEL 5 5 4 Zi Zi 7 7 8 6 6 4. XLR Inputs 5. 50Ω BNC Zeel Inputs 6. 7. 8. Z i.
3. Who am I? 4. Connecting and setup Your darTZeel NHB-108 model one bears, on its front panel, its Identification Plate (1). On this 24k gold plated brass plate are engraved your name, and the serial number. Do not unscrew the plate since it is the identity card of your machine! The serial number can be read as follows: TZ-XY1081.dcbZ X Y dcb Z = = = = 4.1. Location Before making the first connection, you should think carefully about the location where you are going to put your gear.
you can directly hook them to the Speaker Terminals (7). White terminal (upper) = Ground. Red terminal (lower) = Live signal. If your loudspeakers impedance is less than this, or if you want to parallel 2 pairs of 4Ω speakers, you must go to chapter 5.3. "User parameters" before you consider going further. If you do not respect the above, you may encounter some blown fuses when playing music at loud levels.
If you still hear some thumping at powering OFF, you will have to wait around 10 seconds before switching the preamplifier OFF. This noise, however, will be inconsequential and harmless. 5.2. darTZeel's Eyes The 2 giant orange LEDs, called Eyes (2) for obvious reasons, are fully featured function indicators. Five different illumination states, for each individual channel, are described hereunder: 1) Eyes shut (light off).
The speaker's impedance switch is located at the upper left of the transformer (upper right for the right channel), Now just sit back and relax, and immerse yourself in pure musical pleasure! 6. Maintenance 6.1. Fuse(s) replacement The following procedure concerns the left channel. For the right channel, the procedure is the same but that the fuse is in a mirror image configuration. Fig.2 Speaker's impedance switch as shown in Fig.
Put the amplifier on a carpeted surface, and gently (but firmly, as it is a heavy, 30kg electronic creature) pivot it vertically onto its front handles. Use a protective cloth as indicated in fig.3 in order to avoid scratching the inside aluminum parts and pull it off, as shown in fig. 6 Fig. 6 Then turn again 180° counter clockwise and let the fuse fall onto the inner side of the front panel, as shown in fig. 7 Fig.3 Soft cloth while using the supplied long nosed pliers (fig. 4), Fig. 7 Fig.
Connect again all your cables, without omitting the loudspeakers, and power ON your darTZeel NHB-108 model one. Now you are ready to enjoy some more good music, compensating all that tiring physical effort you have just put in… Although the above procedure could seem rather long and complicated, you will see that it is a simpler task to perform than to explain. Anyhow, if you carefully respect all advice and warnings, you should never encounter such problems of blown fuse(s). 6.2.
The warranty will be partially or totally void in the event of noncompliance with the above ! 2) Do not power ON the darTZeel NHB108 model one when no loudspeaker is hooked to the Speaker Terminals (7). In such a case the internal fuses could be blown by the Crowbar circuit. 3) Before connecting or disconnecting the audio cables to/from the RCA (6) or XLR (4) inputs, always flip, when possible, the Input Impedance Selector (Zi) onto "Zeel 50Ω" position.
Alternatively, maybe your room is too big, and that even with your old 1200 watts per channel powerhouse amp, there was only just enough volume? In such a situation, please do not hesitate to consult us. We will try to help you find a solution. B) The volume setting of your preamplifier is close to maximum. This can occur if you use either a passive or a low gain preamplifier. The darTZeel NHB-108 model one has a gain of 26dB, which is slightly lower – two times – than usual.
scribed in chapter 6.1. "Fuse(s) replacement". In order to avoid this situation, we recommend that you wait around 3 seconds before powering you darTZeel NHB-108 model one ON again, when switched OFF. 7.2.9. RAS (Regular And Satisfactory) third one, located at center position, is needed to isolate the transformers from the audio when XLR inputs are not used. This selection is done by means of relays of the highest quality available.
9. Conditions of warranty 9.1. Breakdowns or faulty parts The darTZeel NHB-108 model one is guaranteed for one full year, parts and labor, against any breakdowns or component failure, as is the tradition in Switzerland for such equipment. As we see it, any warranty longer than 1 year is the obvious sign of inferior quality and design, indicating that a failure could arise anytime. 10.
11. Technical data darTZeel NHB-108 model one Nominal output power : 100 watts RMS @ 8 (Hi) and 2 (Lo) ohms. 160 watts RMS @ 4 (Hi) and 1 (Lo) ohms. Gain : 26 dB @ 8 ohms. Input impedances : Version A : RCA: BNC: XLR: Version B : XLR: >100 50 >100 13 33 33 kohms, 5 Hz to 200 kHz. ±1 ohm, 1 Hz to 1 MHz. kohms bet. Pin 1 and 2 (hot leg and ground). kohms bet. Pin 1 and 3 (cold leg and ground). kohms bet. Pin 1 and 2. kohms bet. Pin 1 and 3. Output impedance : < 0.
