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The 1800-1900 and 2000-series

The 1800-1900 and 2000-series are the combination series: the models in the 1800-series have a built in 8-track, the 1900-series have a built-in cassette and the 2000-series have both.

Only the 1800-series consists of multiple models, the 1900- and 2000-series only have one model.

In the mid 70's the demand for combination sets decreased, probably because the 8-track didn't make it in favor of the compact cassette and the sale of cassette decks increased a lot.

By 1975 Akai quit the production of combination sets.

The 1800L, X-1800SD (ca. 1969-1972), the X-1810/D (ca. 1973-1974) and the GX-1820 (ca. 1974-1975)

The 1800L could be a little older than the X-1800SD since it runs on both transistors and tubes. Both sets only have one motor and the well-known two lever tape control operation. The 1800L has an artificial leather finish and a 4 W power amplifier and it has the ability to copy from reel to 8-track.

The X-1800SD is a little more sophisticated version. 'SD' stands for 'Super Deluxe'. It runs on transistors only and has the Cross Field recording system which uses a one micron gap head here. The X-1800SD has two huge feet which look a little like grips and well, maybe they are. A speed change sleeve is included to make it run on 15 ips. This model has a 6 W. power amplfier.

The X-1810/D and GX-1820/D are both nice looking three motor sets with auto reverse for the reel to reel section and a black face panel. These sets look very much alike, only their head covers and line in knobs are different. The mechanics are similar to those found in the X-200D, X-201D, GX-210D and similar sets. One other difference: the GX-1820 lacks the 1 7/8 ips speed.

They have both been available with a 2x 6W power amplifier.

1810 Specifications (reel to reel section only)

Track system: 4-track, 2 channel stereo system

Tape speed: 1 7/8 ips, 3.75 ips and 7.5 ips

Total Wow and Flutter: Less than 0.12% @ 7.5 ips

Frequency response: 30 to 22,000 Hz +/- 3 dB @ 7.5 ips

30 to 18,000 Hz +/- 3 dB @ 3.75 ips

30 to 9,000 Hz +/- 3 dB @ 1 7/8 ips

S/N ratio: Better than 46 dB

FFWD/RWD time: 80/65 sec. using a 1.200 ft tape at 50/60 Hz

Main motor: model 16X

Reel motors: Eddy current outer rotor motor; model: 24X0-II


Erase Head: E4-5

Recording/Playback head: P4-100

Bias head: B4-1

Dimensions: 450 (H) x 435(W) x 240 (D) mm.

Weight: 21.4 kg.

Power consumption: 110 W. for X-1810 and 95 W. for X-1810D

Listed new: $ 800.00 for X-1810D and $ 900.00 for X-1810 in 1973

This page is under construction ( Like software, the job is never done!....)
Last Update - 2-7-2004 5:00 PM.

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Steven L. Bender

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