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Sound Rating: 5 / 10 # Owners: 1
Relaibility Rating: 5 / 10 Views: 167

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Technical Details

Brand: Akai

Model:GX-221D

Category:Mid High Fidelity

Application:Consumer

Electronic:Solid State

Country of Manufacture:Japan

Release dates:1973 - 1978

Tracks:1/4 Rec/PB+1/2PB

Speeds: 1 7/8, 3 3/4, 7 1/2

Max Reel Size("): 7"

Number of heads: 3

Head Composition: Permalloy

Head Configuration: Stereo

# Motors:

Voltage(s): 110-120v

Frequency Response:( 3dB): 7½ ips: 30Hz -25 kHz (low noise tape) 30 - 23 kHz (regular tape) 3¾ ips: 30Hz - 20 kHz (low noise tape) 30 - 19 kHz (regular tape) 1ips: 30Hz - 10 kHz (low noise tape) 30 - 9 kHz (regular tape)

Wow and Flutter:7½ ips: less than 0.08% RMS 3¾ ips: less than 0.12% RMS 1ips:less than 0.20% RMS

Signal-to-Noise Ratio:better than 50 dB

Sound quality rating:5 / 10

Long-term reliability rating: 5 / 10

Additional Details

Description

A three motor auto/manual
reverse tape deck with three heads, the record and playback heads being
of the ‘GX’ (glass & crystal ferrite) type.
Auto reverse was achieved by way of sensing foils on the tape. The inclusion
of a tape selector circuit enabled the use of the new low-noise tapes.
Other features included sound on sound, A/B monitoring. auto stop and
shut-off and a DIN jack.

Additional Info

Equalisation: correct to NAB curve / Crosstalk: better than 65 dB (mono), better than 50 dB (stereo) / Distortion: less than 1.5% (1,000 Hz “0” VU) / Bias frequency: 100 kHz / Erase ratio: better than 70 dB / Semi-conductors: 24 transistors, 14 diodes, 2 Linear IC’s / Rewind speed: 60 / 75 seconds for 1200ft (360m) (50 / 60hZ) / Inputs: Mic: 0.5mV impedance 10 Kohms, Line: 50mV / 150 Kohms DIN: 0.4V / 50 mV (high) 2 mV (low) / Outputs: Line: 1.23 V (“0″ VU) / 100 Ohms, req’d load impedance : >20kohms Headphones: 30 – 40 mV / 8 ohms / Dimensions: 17.4 x 16.7 x 8.7” (440 x 425 x 220mm) / Weight: 44.4lbs (20.2kg) / quarter-track stereo

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