What is stereo?

There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.

H.H. Scott '59

NAD 6340

Cassette Deck
Dolby HX-Pro and DYNEQ: 
Dyneq varies the record equalization to prevent over saturatio when strong high frequency transients occur. HX PRO varies the bias supplied to the bias supplied to the tape during recording to maintain optimum high frequency at all times, thus making a much more accurate reproduction of your source. Note:  HX-pro and DYNEQ are compatible for playback with all cassette decks, including car decks.
Car Circuit: 
Boosts quiet passages in the music without altering the loud passages, making a more practical tape for car or portable players. It also adds equalization for the car environment.
Play Trim:
Developed by Dolby laboratories with NAD, Play Trim compensates for high frequency loss before Dolby NR, restoring highs withput increasing noise. Example: Take an old tape with dulled highs and turn the Play Trim knob and note the restored highs.
Dolby B & C
Full Logic Transport

Speed Accuracy:  +1%
Wow and Flutter: 
less than 0,06% JIS wtd RMS
less than 0,1% DIN wtd. Peak
Frequency Response:  30 Hz - 19 kHz +3 dB (MPX filter Off)
MPX Filter Response:  flat within 1 dB to 15 kHz
Harmonic Distortion:  varies with recording level typically less than 0,3% at -10 dB
Total Harmonic Distortion at 0 dB:
Normal Tape :  less than 1,0 %
CrO₂, Metal Tape :  less than 1,5%
Signal-to-Noise Ratio (ref.3% T.H.D. at 333 Hz CC1R/ARM weighting):  57 dB
Dolby off :  75 dB
Dolby B :  67 dB
Dolby C :  77 dB
Channel Separation:  45 dB at 1 kHz (38 dB broadband)
Erasure:  better than 70 dB at 1 kHz
Input Sensitivity /Impedance:  40 mV/10 k Ω
Maximum Input level:  25 V
Output Level at 0 dB:  500 mV
Output Impedance:  1000 Ω
Power Requirement:  120, 220, 240 V AC 50/60 Hz
Power Consumption:  22 W at 120 V AC
Dimensions (W x H x D):  420 x 122 x 270 mm (16,5" x 4,8" x 10,6")
Weight (net):  4,5 kg (9 lb 15 oz)

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