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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





Audiolab 8000C Pre-amplifier

The Audiolab 8000C pre-amplifier is a highly versatile control pre-amplifier..It offers the flexibility of tone controls, built in class A headphone amplifier and loe output impedence line amplifier. It has inputs for CD, phono, tuner, video, tape 1 and tape 2. The phono inputs match all types of modern Moving Coil and Moving Magnes cartridges. The low output impedance line amplifier is a miniature class A power amplifier with current mirror bias. Perfect for long cables and multiple power amplifiers That is especially important if you want to place your power amplifiers (e.g. 8000M's) close to the loudspeakers.

Specifications :

Input Sensitivity and Impedance: Phono MM 2.0 mV/100 ohm/85 pF,

Phono MC 110 µV/100 ohm/13.3 nF,

CD, Video, Tuner, Tape 1 & 2: 100 mV/20 k ohm

Phono Overload (IHF): Phono MM 30dB rel 5.0mV, maximum input 175mv

Phono MC 25dB rel 0.5mV, maximum input (1kHz) 10mv @1kHz

Signal to Noise(IHFA rel 0.5v output): Phono MM 81dB, Phono MC 77dB, Video / Tuner / Tape 1 & 2 92dB

Frequency Response: Phono MM and Phono MC (RIAA) 20Hz to 20kHz ± 0.5dB

Tone Control Range: Bass: ± 6dB at 20Hz, Treble: ± 6DB @20kHz

Total Harmonic Distorion & Noise: Less than 0.01% any frequency 20Hz to 20 kHz

Channel Balance: Within 1dB

Channel Separation: Better than 60dB @ 1kHz

Polarity (Phase): Non inverting for all inputs

Pre Amp Output: OUTPUT 1 and OUTPUT 2. Level 707 mV.

Output impedance 100 ohm. Maximum output >7.76 V RMS.

Headphone Output: Maximum output 7.76 V RMS. Output impedance 100 ohm.

Suitable for headphones 8 ohm to 2 kohm impedance.

Headphones operate when OUTPUT is switched OFF.

Record Output: TAPE 1, TAPE 2, VIDEO 100 mV.

Output impedance: 1000 ohm, 1600 ohm with phono source.

Output: Switches pre-amp outputs off.

Attenuation is >60 dB. Muting is controlled automatically.

Operating Temperature Range: 10 ~ 30° C

Dimensions (w x d x h): 445 x 330 x 75 mm

Weight: 6 kg

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