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Related Manuals for darTZeel NHB-10 model one
Summary of Contents for darTZeel NHB-10 model one
- Page 1 NHB-108 model one Audiophile's technical manual...
- Page 2 NHB-108 model one Audiophile's technical manual Page 2 of 28...
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Page 3: Table Of Contents
5.2. What application field? ......................... 11 5.2.1. IGBTs..........................12 5.2.2. FETs ..........................12 5.2.3. Bipolars ..........................13 The circuit of darTZeel ........................ 13 5.3. 5.3.1. Criteria of choice ....................... 13 darTZeel schematics ......................13 5.3.2. 5.3.3. Component layout ......................14 5.4. - Page 4 NHB-108 model one Audiophile's technical manual Page 4 of 28...
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Page 5: Introduction
Paradoxically, the innovation here was ter understand why our technical choices not the fact that the amp was digital, but during the design of the darTZeel NHB-108 that no feedback whatsoever was used. model one led to what one could call a The output stage was totally open-loop. -
Page 6: Criteria
3. Criteria ance and frequency response was not our cup of tea. Not by a long chalk. Your darTZeel NHB-108 model one is not an ordinary machine and this is no doubt End of the digital trip. one of the reasons why you purchased it. -
Page 7: Structural Aspects
You are either true dual Every item is CNC machined from the mono, or you are not. The darTZeel NHB- billet in order to ensure a very high den- 108 model one definitely is. sity and outstanding rigidity, thus con-... -
Page 8: Everything Is Transparent
It is true that to look through stages and/or the power transformers the glass of the darTZeel NHB-108 model are not properly decoupled. one is a pleasure for the eyes. Look at... -
Page 9: The Audio Electronics
– quite the contrary. known distortions, given that their be- havior is simpler to explain. If at darTZeel we could completely elimi- nate THD while maintaining our 3 main criteria, then maybe we would do so. 5.1.1. Keeping in harmony Maybe. -
Page 10: Inter Modulation Distortion
IMD value from external replace notes by frequencies. Not very origin for which our ear is sensitive. In practice it seems that IMD less than 2% darTZeel NHB-108 model one Audiophile's technical manual Page 10 of 28... -
Page 11: Temporal Distortion
NFB is used, and both 1 and 3 At darTZeel, we prefer to call it Temporal stages are even open loop! So what Distortion, or TD, because this is obvi- about the frequency response? Every- ously what it actually is. It is one of our... -
Page 12: Igbts
IGBT, a mix of the previous two, in FETs are being used more and more, for the ‘eighties. several reasons, including the most ob- At darTZeel, we strongly believe in new vious one: technologies. On the other hand, we readily admit that nothing can replace It is commonly accepted that they per- experience. -
Page 13: Bipolars
5.3.1. Criteria of choice MOSFETs are also slower, in absolute Simplicity. terms, than bipolars, and are much The audio circuit of the darTZeel NHB-108 harder to drive in pulse mode. model one uses only 14 transistors in all, including current sources. -
Page 14: Component Layout
The above description is an extract of the original patent text, and is con- densed to cover other applications, even in the non-audio field. The darTZeel pre- amplifier circuit is directly derived from the darTZeel NHB-108 model one schemat- ics. -
Page 15: Symmetrically Balanced
For the darTZeel NHB-108 model one, our turbances. approach has been almost the opposite. To minimize the cost? Could you even... -
Page 16: Via The Dartzeel
5.4.4. Via the darTZeel The medium can also be steel. The In the version B of the darTZeel NHB-108 hammer hitting the string, in a piano, model one, we have also installed bal- generates... -
Page 17: Dart To Zeel 50Ω
100+ meters. working in single-ended mode. The 50Ω links used in the darTZeel NHB- The darTZeel NHB-108 model one version B 108 model one, and described hereunder, offers this very same possibility to pro- behave differently…... -
Page 18: Onboard Safety
So why not audio? for professional applications, darT to Zeel The great advantage of impedance mat- floating balanced links. ched-links is their virtual absence of losses, whatever their length. -
Page 19: Crowbar Activation
5 amperes, while the power It is such a circuit that we have installed supply impedance is on Hi and output in the darTZeel NHB-108 model one. When voltage swing is no greater than 60 an anomaly or a faulty condition is de-... -
Page 20: Supervision System
Purity. in the specifications. As you might have guessed, in the darTZeel NHB-108 model one we have used 6.2.2. For its eyes only a somewhat different approach. The monitoring circuit not only takes ex-... -
Page 21: Power Supplies
"music". dramatically, causing dynamic compres- sion. Does this remind you of some- In your darTZeel NHB-108 model one, the thing? power supplies are not really standard ones. The amplifier is a true dual mono. 7.2. Voltage or current? We apologize about stressing the word "true", but much too often this descrip-... -
Page 22: Received Idea
333(!) watts, this is impossible with more complex designs. quite reasonable… Do you now better understand why "Lots of Amperes" does not necessarily mean "Superb Bass"? darTZeel NHB-108 model one Audiophile's technical manual Page 22 of 28... -
Page 23: The Sound Of Dartzeel
– under our car’s rear window on a We could say that the darTZeel NHB-108 hot summer’s day… model one offers an outstanding temporal What is far less known is the mathemati-... -
Page 24: Long Term Availability
9.2. Long term availability One hundred and twenty? Are they kid- 9.2.1. Spare parts ding at darTZeel's? Or are they just being pretentious? To own a darTZeel NHB-108 model one Yes, we only said that it is our wish. But must not only give you musical pleasure. -
Page 25: The Next Dartzeel
CNC machined com- Nevertheless, do not believe that we set ponents. such a high level for the darTZeel NHB- A total number of transistors equal- 108 model one that no one could ever im- ing 120% of the number of complete prove it. -
Page 26: Keeping An Open Door
We will be pleased to read your com- plaints, and we will take them into ac- count for future manuals. Any suggestion or criticism concerning the darTZeel NHB-108 model one, a particu- lar manual, or any other point, can be emailed to: info@dartzeel.com... -
Page 27: Special Adjustments
Caution! The procedure described below close to the RCA input connectors. can present some risk, since the darTZeel On left channel, the trimmer is lo- NHB-108 model one must remain powered cated on PCB solder side, between PCB and heat sink. -
Page 28: Monitoring Circuit
Conversely, it could arise that you may to all darTZeel NHB-108 model one owners, have to work closer to the critical having either the A or B version.
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