Cassette Deck, Date of manufacture Jan 85 Jun

6155 Cassette Deck

Date of manufacture : Jan 85 - Jun 88

Please note that this document contains the text from the original product brochure, and some technical statements may now be out of date

THE FIRST SEMI-PROFESSIONAL CASSETTE DECK FROM NAD

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’s 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.

A CLOSER LOOK:

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 rolloffs 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 magnetised tape head.

•Despite the standardisation of 120 and 70 microsecond playback equalisation 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.

6155 specifications

The NAD 6155 is a notable addition to the world of high-fidelity audio equipment, encasing pivotal technologies and characteristics that cater to avid music lovers and audiophiles alike. Launched by NAD Electronics, a company renowned for its commitment to high-quality audio, the 6155 model has quickly become acclaimed for its efficiency and performance.

One of the most significant features of the NAD 6155 is its robust amplifier section. Utilizing a high-current design, it delivers ample power to even the most demanding loudspeakers. The amplifier operates in Class D mode, allowing for increased energy efficiency without sacrificing sound quality. This technology not only reduces heat generation but also translates into a compact form factor, making the NAD 6155 a versatile choice for various setups.

The NAD 6155 also boasts a fully digital signal processing (DSP) platform that enhances sound control and customization. This enables users to fine-tune their audio experience, adjusting parameters like bass and treble to match personal preferences or acoustic environments. The intuitive interface simplifies the adjustment process, allowing seamless transitions between presets.

Additionally, NAD has incorporated Bluetooth technology into the 6155, facilitating easy wireless streaming from smartphones, tablets, and computers. This connectivity opens up a world of streaming possibilities, allowing for direct access to music libraries and popular streaming services, enhancing convenience for modern users.

The build quality of the NAD 6155 reinforces its reputation as a premium audio product. The chassis is constructed from durable materials, ensuring longevity and resilience. The thoughtfully designed front panel features an array of inputs and outputs, including multiple analogue connections, digital inputs, and an option for phono input, accommodating various source devices.

Moreover, the NAD 6155 utilizes advanced filtering techniques that minimize distortion and noise, ensuring that listeners experience music as it was intended by the artists. This attention to detail culminates in an audio performance that is both vibrant and immersive, appealing to both casual listeners and serious aficionados.

In conclusion, the NAD 6155 combines cutting-edge technology, robust performance, and user-friendly features in one sleek package. Its blend of high-quality amplifier design, digital signal processing, and versatile connectivity makes it a commendable choice for those seeking to elevate their listening experience. Whether used in a home theater system or a dedicated music setup, the NAD 6155 stands out as a noteworthy contender in the realm of audio equipment.