Cassette 4-track Speeds & NR From Article

[Beck]

4-Track Cassette Multitrack Roundup
Home & Studio Recording Magazine, Jan 1989
(Models with an asterisk were not in the original article, I just added some I could find)

AKAI MG614 1 7/8 & 3 3/4 DBX TYPE I

AMR MCR 4 & 4S 1 7/8 & 3 3/4 DOLBY B & C

FOSTEX
X15 1 7/8 DOLBY B
X26 1 7/8 DOLBY B
X30 1 7/8 DOLBY B
160 3 3/4 DOLBY C
250 3 3/4 DOLBY C
260 3 3/4 DOLBY C
460 1 7/8 & 3 3/4 DOLBY B & C

SANSUI WS-X1 3 3/4 DOLBY C

TASCAM
144 3 3/4 DOLBY B
244 3 3/4 DBX TYPE II
246 1 7/8 & 3 3/4 DBX TYPE II
PORTA ONE 1 7/8 DBX TYPE II
PORTA TWO 1 7/8 DBX TYPE II
*PORTA 02 1 7/8 NONE (43 dB S/N…Yikes!)
PORTA 05 1 7/8 DBX TYPE II
*414 3 3/4 DBX TYPE II
*424 1 7/8 & 3 3/4 DBX TYPE II
*644 1 7/8 & 3 3/4 DBX TYPE II
*134 1 7/8 & 3 3/4 DOLBY B & C (Thanks ARP)
*234 1 7/8 & 3 3/4 DBX TYPE II

TOA MR-8T 3 3/4 DBX TYPE II

VESTA-FIRE
MR1 & 1M 3 3/4 DBX TYPE II
MR10 1 7/8 DBX TYPE II
MR10Pro 3 3/4 DBX TYPE II
MR30 1 7/8 DOLBY B

VESTAX
MR100FX 15/16, 1/ 7/8, 3 3/4 DBX TYPE II

YAMAHA
MT44 & 44D 1 7/8 DOLBY B & C
MT1X 1 7/8 DBX TYPE I
MT2X 1 7/8 & 3 3/4 DBX TYPE I
*MT3X 1 7/8 & 3 3/4 DBX TYPE I
MT100 1 7/8 & 3 3/4 DBX TYPE I

 

[A Reel Person]

Nice.

The Yamaha MT-120 was 1-7/8 & 3-3/4 ips and dbx.
The Yamaha MT-120s was the Dolby S version.

...

There was a Tascam Porta Two HS and Porta 05-HS that ran high speed/dbx, as well as the Porta 07.

 

[Beck]

Nice.

The Yamaha MT-120 was 1-7/8 & 3-3/4 ips and dbx.
The Yamaha MT-120s was the Dolby S version.

...

There was a Tascam Porta Two HS and Porta 05-HS that ran high speed/dbx, as well as the Porta 07.

Thanks Dave. Sooner or later we may have a complete list of the 4-track cassettes.

 

[seeq]

marantz PMD 740 ---> DBX Type II
marantz PMD ??? ---> DBX Type II (Marantz also made a model that looks alot like the 740 but lacks some of the more 'advanced' features)