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DOLBY HX PRO HEADROOM EXTENSION SYSTEM

This deck is equipped with the Dolby HX PRO headroom extension system. Since the system functions automatically during recording, no switching operation or adjustment is required. The system is effective with any type of Normal, High and Metal tape.

The Dolby HX PRO headroom extension system functions during recording to raise the saturation level in the high frequency range. Therefore, most of the high frequency range distorted or lost during recording on conventional cassette decks are more faithfully recorded on the new MARANTZ cassette deck.

Features of the Dolby HX PRO Headroom Extension System

(1)Performance of Normal and High Position tapes can be improved to very close of that offered by Metal tape.

(2)The dynamics in the high frequency range are improved significantly.

(3)Since no decoding is necessary during playback, the improved sound can be enjoyed on any type of tape deck, including portable players and car aud io systems.

(4)The system functions whether the Dolby B/C NR system is engaged or not.

ÇAIS

MAINTENANCE

Head cleaning

After long usage, tape coating material or dust may adhere to the heads, causing deterioration of sound. Therefore, the parts depicted in the illustration should be cleaned reguraly. Use a cotton swab moistened with a tape head cleaning solution (such as alcohol).

Note:

1.Some cleaning cassettes on the market have strong abrasive effects and may scratch the heads. Always use cotton swabs instead of cleaning cassettes.

2.Since the use of metal tape is apt to collect more dust on the heads, the heads should be cleaned more often to enjoy the best possible sound.

Cleaning the Pinch Rollers and Capstans

If the pinch roller or capstans accumulate dust, tape transport may become unstable, as a result from slippage, during recording or playback. The tape can also be damaged if it gets entangled in the capstan.

Clean these parts with a cotton swab or a soft cloth moistened with a tape head cleaning solution (such as alcohol).

Demagnetizing the Heads

The heads may become magnetized after long usage or if storongly magnetized objects are brought near them. The result is a generation of noise, loss of the high frequency range, and in extreme cases erasure of the high frequency part on pre-recorded tapes in combination with added noise.

Thus, the heads should be demagnetized at regular intervals. (Head demagnetizers are sparately available from your dealer.)

How to Demagnetize the Tape Heads

1.Turn off the power.

2.Turn on the demagnetizer while it is at least 30 cm away from the heads. Bring the demagnetizer near the heads and slowly move it in small circles four or five times in front of each head, making sure you do not touch them.

3.Slowly move the demagnetizer away and turn it off when it is at least 30 cm away from the heads.

4.For more details, please read the User Guide provided with the demagnetizer (optional).

CAPABILITY OF REMOTE CONTROL

			RC-5 CODE

PLAY (	)		1853

FF (	)		1852

REW (	)		1850

PAUSE (		)	1848


STOP (	)		1854


REC			1855

REC MUTE			1842

COUNTER RESET			1849

DECK A			1844

DECK B			1846

DIRECTION (	)		1847

SD4050 specifications

The Marantz SD4050 is a highly regarded dual cassette deck that was introduced in the early 1980s, catering to both audiophiles and casual listeners alike. Renowned for its impressive build quality and superior sound reproduction, the SD4050 exemplifies Marantz's commitment to audio excellence.

One of the standout features of the Marantz SD4050 is its dual-deck configuration, allowing users to play and record simultaneously. This versatility makes it ideal for creating mixtapes or broadcasting live recordings. With the ability to handle both normal and high-bias tapes, the SD4050 accommodates a wide variety of cassette formats, ensuring compatibility with most tapes available in the market.

The SD4050 boasts a range of innovative technologies tailored to enhance audio quality. It features a three-head design, which includes separate playback, recording, and erase heads. This architecture allows for higher fidelity recordings and improved playback quality, as it enables users to monitor recording levels more accurately. The use of Metal and Chrome tape compatibility further elevates its performance, allowing for better sound quality and dynamic range.

Another notable technology is the automatic tape type detection system, which adjusts the recording bias and EQ settings based on the type of tape being used. This ensures optimal performance regardless of the tape's specifications. The deck also includes a full suite of transport controls, including rewind, fast forward, play, and record, along with auto-stop functionality, which enhances user convenience.

Additional characteristics of the SD4050 include its sleek and durable metal chassis, which not only adds a premium look but also reduces resonance and vibrations, contributing to clearer sound reproduction. The deck is equipped with level meters for precise monitoring of recording levels, allowing users to achieve the best sound quality.

In conclusion, the Marantz SD4050 is a testament to the brand's rich history of crafting high-performance audio equipment. With its dual cassette configuration, advanced technologies, and user-friendly features, it remains a sought-after model for anyone looking to explore the world of cassette tapes while enjoying exceptional audio fidelity. Whether for nostalgic purposes or practical use, the SD4050 is a remarkable addition to any audio setup.