Pioneer CT-7

Commentary

Stereo cassette deck with a design that can be stacked with amplifiers and tuners.

The cassette tape is set at an angle of 30 ° from the front, and the running condition can be confirmed with the naked eye.
In order to ensure low rotational unevenness under this condition, we have adopted an electronically controlled DC motor with large torque that is not affected by voltage fluctuations, and a high-precision capstan with roundness of 0.1 μ or less.

It is equipped with a peak indicator combining a light emitting diode (LED) and an electronic circuit.
Reacts quickly to the instantaneous peak level of the recording source and lights up to warn you that the recording level is over.
The lighting level is set at + 4 dB from the reference recording level (0 dB on the meter). Since there is a margin to + 10 dB, which is the maximum recording level at which sound is completely distorted, the recording level can be adjusted when it flashes.
In the case of Dolby recording, setting the recording level with the peak indicator results in a slightly lower average level, allowing recording with a wide dynamic range at a low distortion rate.

The built-in Dolby system greatly reduces noise without compromising the sound quality of the recording source.

In order to bring out the taste of chrome tape, low-noise tape, standard tape, etc., it is equipped with an independent switching type tape selector with 2 levels of bias and 2 levels of equalizer.
For chrome tapes, a new equalizer circuit with a time constant of 70 μ s is used to improve the high-frequency SN.
Duad Ferri Chrome When using a tape, switch the Bias Selector to Normal and the Equalizer Selector to Chrome, and record and play back the tape. This will bring out the tape.

The head uses a ferrite solid head with less head wear.
There is little magnetic loss at high frequency, which is advantageous for use of chrome tape.
In addition, the contact surface is elaborately mirror-finished to obtain stable sound quality.

Equipped with a recording level limiter.
When you use this device, the limiter amplifier automatically adjusts the level of the overlevel during recording to prevent the sound from breaking.

It has a built-in recording amplifier with a large dynamic margin and a high maximum allowable input.

It has a built-in tape counter for repeated playback.
If memory rewind is set to ON, it will automatically stop at the counter 999, one point before the start point in the rewind operation.

It has a built-in internal authentication switch that makes it easier to see the letters on the tape.

Equipped with a skip button that can fast-forward at about twice the speed while monitoring the playback sound.

Equipped with a large level meter.

A memory marker device that stores the position of the knob for recording and playback levels.

Parallel input / output terminal for simultaneous recording with other decks.

Model Rating

Type	Stereo cassette deck
Recording system	AC bias, 85 kHz
Erasing method	AC push-pull system
Heads	Recording and Playback : Ferrite Solid Erasing : ferrites
Motor	Electronically controlled DC motor
Quick winding speed	About 80 seconds (at C-60)
Uneven rotation (Wrms)	0.10%
Equalizer	120 μ s/70 μ s (at Chrome)
Frequency characteristic	General Tape : 30 Hz ~ 13000 Hz, 40 Hz ~ 12000 Hz ± 3 dB Chrome Tape : 30 Hz ~ 16000 Hz, 40 Hz ~ 13000 Hz ± 3 dB
S/N	48 dB (333 Hz, General Tape, Maximum Recording Level Weighted) 58 dB (5 kHz or higher, general tape, maximum recording level Dolby NRON Weighted)
Distortion factor	2% or Less (333 Hz, 0 dB)
Input	MIC : 0.2 mV ~ 90mV/20k Ω (6 φ Jack), Low Impedance Microphone Available Line : 60 mv ~ 9V/470k Ω (Pin Jack) Rec/PB : 6 mv ~ 2.7V/10k Ω (DIN Standard Jack)
Output	Line : 300mV/50k Ω (pin jack) Rec/PB : 300mV/50k Ω (DIN Standard Jack) Headset : 40mV/8 Ω (6 φ Jack)
Semiconductor used	Transistor : 37 FET : 2 IC : 2 Thyristor : 1 Diode : 23 Pieces Zener diode : 5 pcs Light Emitting Diode : 2
Pwer	100 VAC, 50Hz/60Hz
Power consumption	15W max.
External dimensions	Width 430x Height 138x Depth 310 mm
Weight	8.5kg
Attachment	2 recording / re-stereo connection code One Head Cleaning Kit