Akai X-1800SD reel/cartridge recorder

Akai Cross-Field Reel-to-reel and Cartrdidge Stereo 8 Recorder

Your dream of cartridge recording and playback or Reel-to-Reel recording and playback with the same recorder has come true. This is possible with Akai's X-1800SD, a novelty in the tape recorder world. Akai has combined in one tape recorder all the features that could beattained by using three conventional interconnected recorders.

Cartridge 8-track stereo recording and playback, with an one micron gap head;  Reel-to-Reel 4-track Stereo/Monaural recording and playback, with the Cross-Field head of superior recording capacity; and transfer from rell to cartrdige are unique and exclusive features of this model.

 

Outstanding Features

Reel-to-Reel

4-track stereo/monaural recording and playback

Tape speeds; 1-7/8; 3-3/4 and 7-1/2 ips (15 ips with 15ips adaptor kit)

Heads; Cross-Field head system (Erase, Recording/Playback and Nias heads)

Wide Cross-Field Frequency Response

Two lever system ensures dependable and durable operation

Track selector for simple selection between stereo and monaural

Automatic shut-off and Instant Stopcontrol

3-digit index counter with reset button

Tape cleaner with release button

Tape lifter in fast forward and rewind operation

Cartridge

8-track stereo recording and playback

Transfer fom reel to Cartridge

Transfer safety lock

Tape speed 3-3/4 ips

Heads, Erase and one micron gap recording/playback heads

Cartridge program selector button

Program selection may be remote controlled

Program indicator lamp (also indicates whether cartridge is perfectly set)

One hour of continuous stereo recording and playback

300 foot cartridge tape

Cartridge automatic stop

Reel-to-Reel/Cartridge

Hi-fi stereo sound produced by high capacity 12 W solid stste amplifier and high compliance self-contained speakers

Silicon transistors and shield type head for high Signal-to-Noise ratio

Strudy mechanism for absolute duraability

Main amplifier protector fuse

Tone controls

Tape speed equalizer high visable twin type VU meter

Speaker On/off switch

DIN jack, Stereo headphone jack

Fine oil-finished wooden cabinet

Vertical and horizontal operation

Universal voltage selector (100 V - 240 V , 50/60 Hz)

 

Cross-Field Head

On conventional recorders the signal and biass are applied to the same recording head. Therefore the frequencies recorded, especially the high frequency component of the recorded signal tend to be attenuated or erased by the effect of this bias field. On the exclusive Akai Cross-Filed head which was developed by Akai for practical use the signal and bias heads are mounted in opposition with their centres slightly off. As the recorded signal is entirely unaffacted by the prevailing effect of the bias fielf, the tape can be recorded over the entire frequency spectrum with maximum fidelity.

 

One Micron Gap head

Model X-1800SD utilizes the cross-field head to obtain an amazing level of recording characteristics in reel-to-reel recording. In cartridge recording, the high-quality one micron gap head designed by Akai also gives excellent recording characteristics. This recording characteristic, 50 to 17,000 Hz ±3 dB at a tape speed of 3-3/4 ips, produces excellent results for cartridge tape recordings.

 

8-track stereo recording/playback (cartridge)

Model X-1800SD employs the 8 track stereo system on the cartridge. The tape has a total of eight tracks, two of which are used at a time for stereo recording or playback. These are four choices of channels for stereo recording and playback. When the tape ends, the next channel is automatically positioned for recording or playback. Recording or playback time for one channel is fifteen minutes, and continous one hour on four channels by using 300 foot cartridge tape. The desired channel may be easily selected by manually pushing the Cartridge program Selector Button.

 

Cartridge recording tape (ACT-200, ACT-300)

Akai's 1800 series tape recorders, Model 1800L and X-1800SD are the latest models that are capable of recording with a cartridge tape. For use in this type of recording, we have cartridge recording tapes, ACT-200 with 200 foot long tape, and ACT-300 with 300 foot long tape. This cartridge tapes are highly recommended for best results.

 

Specifications

Reel Tape Spped:  1-7/8, 3-3/4, 7-1/2 ips

Cartridge Tape Speed:  3-3/4 ips

Wow and Flutter::

Reel

7-1/2 :  less than 0,12% RMS

3-3/4 :  less than 0,15% RMS

1-7/8 :  less than 0,20% RMS

Cartridge:  less than 0,25% RMS

Frequency Response

Reel

7-1/2 :  30 - 23,000 Hz ±3 dB

3-3/4 :  30 - 18,000 Hz ±3 dB

1-7/8 :  30 - 9,000 Hz ±3 dB

Cartridge :  50 - 17,000 Hz ±3 dB

Signal-to-Noise Ratio

Reel :  better than 50 dB

Cartridge :  better than 45 dB

Input Level

Mic ;  better than 0,5 mV

Line :  better than 60 mV

Power Output:  6 W maximum each channel at Music Power,total 12 W

Equalization:  Correct equalization for plaback of tapes recorded to the NARTB curve

Recording level Indicator: Twin type VU meter

Recording System:

Reel :  4-track stereo/monaural, Cross-Field bias system

Cartridge :  8-track stereo system

Fast Forward and Rewind Time

Reel :  150 seconds using 1200 foot tape at 50 Hz or 120 seconds at 60 Hz

Recording Capacity

Reel : 

8 hours monauraal recording at 1-7/8 ips (1200 foot tape)

4 hours stereo recording at 1-7/8 ips

Cartridge :  one hour stereo recording at 300 foot cartridge tape

Maximum Reel Size:  7-inch

Motor:  2-speed induction motor

Speakers:  2 x 4" speakers

Semiconductors:  19 Transistors, 13 Diodes

Power Supply:  AC 100 - 240 V,, 50/60 Hz

Power Consumption:  60 VA

Dimensions:  378 x 338 x 238 mm (16" x 13-1/2" x 9-1/2")

Weight:  17 kg (37,4 lbs)