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Akai Pro-1000

Professional Tape Recorder

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Akai Pro-1000

Specifications

Track system: 2/4-track, 2-channel, stereo system

Heads: 2 x GX record, 2 x GX playback, 1 x 4 track GX head, 1 x erase

Motor: 2 x reel drive, 1 x capstan

Reel size: up to 10.5 inch reel

Equalization: NAB

Tape speeds: 3 34  7 12  15 ips

Wow and flutter: 0.025% (15 ips)

Frequency response: 50Hz to 20kHz (15 ips)

Signal to Noise Ratio: 60dB

Total harmonic distortion: 1%

Input: 70mV (line), 0.3mV (mic)

Output: 0.775V (line)

Semiconductors: 130 x transistors, 4 x diodes, 6 x FET, 2 x IC

Dimensions: 486 x 412 x 284mm

Weight: 28.3kg

Accessories: 1 x empty reel, 2 x reel hub adaptor, 1 x connecting cord set, 1 x sensing tape

Year: 1976

Note: amplifier module 10.2kg

Price: USD $1,995 (1977)

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Comments

re: Pro-1000

Can anyone here tell me if it is possible to change the head stack from 2 track to 4 track using either a 1/4 track head stack or a 4 channel head stack using tracks 1/3 ignoring 2/4 from an akai unit of similar design such as a TGX_600 series or even a TEAC A-2300/2340/3340/3440? Making the mechanical changes is not the issue, matching the heads is. Any advice welcome. Thanks.

re: Pro-1000

Hi,
Interesting to read your questions and it's been a long while, but this is for most readers info, as I have replaced and modified audio heads on many tape decks over the years, both cassette and Open Reel.
1) Physical dimensions are of course important, but if there is a will, then there is a way. If physically no way to attach by screws, then try araldite, but remember, you need access to fine tune playback azimuth. 2) Impedance is not critical for P/B, but it is for record. 3 head tape decks are therefore in a way easier when modifying the P/B head, if discrete 3 head system. If you want to convert 2 track/2 channel to 4 track/2 ch, you can use either a 4 trk/4 ch head or a 4 trk/2 ch head as long as you solder wires on trks 1 & 3 of 4 channel head. If you want to record after replacing a 2 head tape deck, then this is more critical as head impedance (read coils in ohms) affects frequency record characteristics. 3) Tenacity.
Anyway, write if you want more info and I'll try to be more specific.

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