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NAD 6155 Cassette Deck.Used.Great Shape.Works Fantastic

Submitted by on September 17, 2010 – 9:12 amNo Comment

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NAD 6155 Cassette Deck.Used.Great Shape.Works Fantastic Picture(s) and Description:

 111381304308511730 NAD 6155 Cassette Deck.Used.Great Shape.Works Fantastic

You are bidding on a Lightly used NAD 6155 cassette deck.Everything Works.Shows some minor wear.Small surface scratches.Nothing Major.This was a quality piece when I bought it.I think I remember paying $400 for it at a high end stereo place.Plays and records great.I am throwing in a head demagnatizer.Dont know what the brand is but it works just fine.I do not have the original box or the manual for the deck but I am sure you can download it from the company website.You dont have to be a rocket scientist to work a cassette deck,right? Anyways the specs are as follows: Features: The NAD 6155 is the finest cassette deck NAD has ever designed. Its outstanding performance, in both recording and in playback, places it on a par with the best cassette decks on the market - machines costing hundreds of dollars more than the 6155. How can such performance be achieved at the 6155’ modest cost? NAD concentrates its engineering budget entirely on those aspects of design and manufacturing that affect the audible performance of the recorder, while omitting cosmetic frills and features that have little or nothing to do with how well the machine reproduces the true sound of music. The NAD 6155’s superior performance is derived mainly from three design elements. One is an NAD “first,” and the other two are found in only a few other cassette decks costing far more than the 6155. While the 6155 may be a mid-priced machine, it was designed to work at its best with premium-quality tapes, producing first-class recordings. In addition, its wide-range response, low flutter, and very quiet electronics provide a superb play-back environment for the many high-quality pre-recorded music cassettes that are available today. Published specifications and test reports confirm that many cassette recorders can deliver accurate, wide range response under ideal laboratory-test conditions. But in everyday listening accurate tape playback is elusive, for several reasons: Different brands of tape vary widely in high-frequency sensitivity, so even when a recorder’s tape selector is set to the nominally correct position, different brands of tape may produce sound that is brighter or duller than the original music. • Because of the slow speed of cassette recording, tape saturation at high frequencies is a universal problem. • At the slow speed of cassette playback, high-frequency roll offs will occur if there is even a very small difference in head “azimuth” between the machine used to record the tape and the deck used for playback. (“Azimuth” refers to the orientation of the head gap, which must be exactly at right angles to the direction of the tape motion.) • Treble losses may occur if a tape is accidentally exposed to the magnetic field of a loudspeaker, an amplifier’s power transformer, or a magnetized tape head. • Despite the standardization of 120 and 70 microsecond playback equalization for cassette decks, there are significant brand-to-brand differences among recorders, so that tapes recorded on one machine may not reproduce accurately on another deck. THREE STATE-OF-THE-ART FEATURES: 1. PLAY TRIM - A FIRST FROM NAD The NAD 6155 is the first cassette deck to feature the new Play Trim circuit, an innovation that corrects the high-frequency aberrations which, for many years, have limited the fidelity of cassette recordings.NAD developed the Play Trim circuit in collaboration with Dolby Laboratories, to deal with the variations in high-frequency response that often occur in cassette recordings - especially in tapes that were recorded on one machine and are being played on another. These errors arise from tape saturation at high frequencies, from biasing that didn't match the tape when the recording was made, and from differences in equalization and head azimuth among recorders. Such errors are magnified by Dolby NR decoding because they cause the Dolby NR circuits to mistrack, often resulting in dull sound. Play Trim is a special high-frequency playback equalization circuit, located ahead of the Dolby NR circuit so that it can be used to restore accurate playback response before Dolby NR decoding takes place. As a result the playback of all cassettes can now approach the high-fidelity ideal: accurate reproduction of every original sound, with all of its brilliance and clarity preserved These several causes of variable high-frequency playback response are significant by themselves, but when decoded by the noise-reduction circuits, these errors are greatly magnified. For example, mild tape saturation or skewing that rolls off the highs above 8kHz will cause a slight loss of crispness and “air” in the sound. But if that roll off alters the tracking of the Dolby noise-reduction circuit, it will depress response at lower frequencies as well, so that the sound becomes dull in the mid-range too. Since the playback error occurred ahead of the noise-reduction decoding, this problem cannot be solved simply by adjusting amplifier tone controls. The solution: Play Trim. The new Play Trim control not only corrects these common high-frequency aberrations but also prevents the consequent mist racking of the noise-reduction circuits. The Play Trim control is easy to use: you simply adjust it in playback to obtain musically correct tonal balance, removing any false brightening or dulling of the sound. The Play Trim circuit is a narrow-band equalizer that operates in the top two octaves of the audio spectrum, providing an adjustable boost or cut of up to ±3 dB at 10 kHz and 6 dB at 20 kHz. The key to its success is its location in the signal path,ahead of the Dolby NR decoder. Since any high-frequency errors are corrected before Dolby NR decoding, playback fidelity can be as excellent in everyday use as it is in idealized lab tests. 2. DOLBY HX PRO HEADROOM EXTENSION At high recording levels, over biasing rolls off high frequencies and causes the tape to saturate at a reduced level. This yields a dull sound which is commonly assumed to be an inevitable characteristic of cassette recordings. The 6155 includes the Dolby HX Pro headroom extension circuit, which constantly monitors the level and frequency content of the input signal during recording, and it automatically varies the amount of ultrasonic bias so that the total effective bias (including the effect of the high audio frequencies) is optimum at all times. Consequently, when you are recording a strong low-frequency signal, the bias level increases to an unusually high value. Providing remarkably low distortion at high recording levels. When the input signal has strong highs, the bias decreases to provide a dramatic improvement in high-frequency saturation level, preventing any dulling of the highs. As a result, the useful dynamic range of the 6155 at both low and high frequencies is greater with ferric and chrome tapes than the range many other decks achieve with costly metal tape. Best of all, the operation of the Dolby HX Pro circuit is totally automatic. And since it works only during recording, the superior quality of the resultant recording will be evident wherever the tape is played - in the car, in a personal portable player with headphones, or in the 6155 itself. 3. AMORPHOUS HEAD The NAD 6155 contains a costly amorphous record/play head that is remarkably free of flux saturation even at the highest recording levels. In many cassette recorders, at low and middle frequencies the head saturates before the tape does, and that is what limits the useful dynamic range of the recorder. With the amorphous head you can record musical peaks at levels substantially higher than 0 dB (Dolby NR reference level), confident that the sound will remain distortion-free. The ability of the amorphous head to handle extra-high signal levels without saturating is especially important with high-bias (chrome) and metal-particle tape formulations. These tapes excel in high frequency dynamic range, allowing you to capture the full brilliance and power of cymbals, bells, brass, and synthesizers in clear, airy sound. Play Trim, Dolby HX Pro, and the amorphous head add up to a level of performance, in both recording and playback, that normally is found only in tape decks that cost far than the 6155. TECHNICAL SPECIFICATIONS: Speed accuracy ±1%Wow and flutter <0.06% JIS weighted, RMS<0.1% DIN weighted, peak Frequency response 30Hz - 20kHz ±3dB MPX filter response Flat within 1dB to 15kHz Harmonic distortion <0.3% at -10dB THD at 0dB Normal tape <0.5% CrO2, Metal 70dB at 1kHz Input sensitivity 110mV Input impedance 7k½ Maximum input level 25V Output level at 0dB 580mV Output impedance 1k½ Manufactured, January 85' to June 88' Dimensions (W x H x D) 420 x 120 x 250mm Net weight 4.8kg Please feel free to email me with any questions or concerns you may have.Good luck and happy bidding! Oh yeah,as always,this item comes from a pet free and smoke free home!! Thanks again and good luck!!!!

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