Кассетная дека Pioneer CT-A1

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Кассетная дека Pioneer CT-A1

Among the top tape recorders in cassette format, the CT-A1 is, unfortunately... rare.

Closed-loop dual capstans, three S&F heads, Pioneer's staple Auto BLE system, high-torque coreless motors, PNP/NPN transistors for the audio stages, a 25 dB higher than standard dynamic margin and more - the CT-A1 was a peak.

Auto BLE works with recording a 1khz tone in sixty-four steps of bias variations, recording a 1khz tone in sixty-four steps of level variations and recording a 1khz tone in sixty-four steps of eq variations - then averaging.

At 18 kg , the CT-A1 also was a load.
Most of these features would be carried onto the top deck of the " Communication " series (CT_9R ) with large reductions in size, weight and... lavish-ness.

Produced as well but very briefly and outside Japan under the Phase Linear brand (Model 7000 Series Two) which Pioneer had briefly acquired at some point before selling it back to Jensen.

The Model 7000 is an exact replica of the CT-A1 but for the color scheme which is gold, bronze and clear.
In one word : shiny and a bit more inviting than the somewhat closed egg the black CT-A1 is.

Track type :	4 channel /2 track stereophonic
Recording head :	1x ribbon sendust
Playback head :	1x ribbon sendust
Erasing head :	1x special alloy
Motor with Constant Speed :	1x quartz PLL direct-drive coreless (capstan)
Reel Driving Motor :	1x coreless high-torque (reels)
Winding time :	75s (C-60)
Wow & flutter :	less than 0.03% ( WRMS )
	Frequency Response -20 dB recording
STD	20 Hz ...19 Khz (25 Hz ...16 Khz ± 3 dB )
LH	20 Hz ...19 Khz (25 Hz ...16 Khz ± 3 dB )
FeCr	20 Hz ...20k Hz (25 Hz ...18 Khz ± 3 dB )
CrO2	20 Hz ...20 Khz (25 Hz ...18 Khz ± 3 dB )
Metal	20 Hz ...19 Khz (25 Hz ...19 Khz ± 3 dB )
	0 dB recording
CrO2	20 Hz ...13 Khz
Metal	20 Hz ...15 Khz
	Auto BLE -20 dB recording
Metal	35 Hz ...15 Khz ( ± 1 dB )
S/N ratio :	> 60 dB (Dolby off)
	More than 70 dB above 5 Khz (Dolby on)
	(3rd harmonic distortion 3% and weighted)
THD :	< 1% (0 dB )
Inputs :	2x MIC (0.3 mV / 100 mV max /10 kOhm)
	(applicable microphone impedance: 250 Ohm...10 kOhm)
	4x line (65mV/15 V max/100 kOhm)
Outputs :	4x line (450 mV / 640 mV max / 50 kOhm)
	1x headphone (63 mV / 90 mV max / 8 Ohm)
Componentry :	42 IC s
	194 transistors
	124 diodes (16 Zener)
	19 LED
	1 Photo interrupter
PC :	45W
Dimensions :	42 x 21,7 x 39 cm
Weight :	18 kg
List price :	230,000 ¥
	Functions :
•	Auto BLE (indicator, 9 memories and call functions)
•	Level Meter with 2 coloured LED s (-30...+8 dB )
•	Display switche for peak / hold / average / dimmer / bright
•	4 digit digital tape counter
•	Bias adjusting volume
•	Auto functions for memory stop/memory play/memoryrepeat/end repeat with indicators
•	Dolby system On/Off with indicators
•	MPX filter On/Off
•	Monitor for Tape/Source
•	Pitch Control with Quartz-lock indicator
•	Tape Selector with indicators: STD, CrO2, Fe-Cr and Metal
•	REC mute with blinker
•	Mixing for Line and Microphone
•	Warning for backup battery
•	Timer Standby
•	Back illuminator for cassette

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