DOS Days

BTC-1853 / BTC-1855 / BTC-1857 / BTC-1859

The BTC-185x series were 16-bit ISA sound cards compatible with the Sound Blaster, Sound Blaster Pro, and Windows Sound System.

Released 1996
Bus ISA 16-bit
FM Synth ESFM (built into chipset)
Audio Codec (built into chipset)
Chipset ESS ES1868F or ES1869F
Standards Ad Lib, Sound Blaster, Sound Blaster Pro, Windows Sound System
Ports Speaker-Out, Mic-In, Line-In (stereo), Game port, Volume thumbwheel
CD-ROM IDE
Wavetable ESS ES689F on some variants
Plug & Play Yes
FCC ID(s) E5X1853, E5X1835L
Price  
See Also  

The BTC 185x series were Plug & Play sound cards offering 16-bit stereo sound sampling delivered at CD-quality rates up to 44.1KHz. The cards were all based on the ESS ES1868F FM music synthesizer with their own ESFM(TM) OPL3-compatible emulation. The 1857 and 1859 offered '3D spacializer' technology, allowing surround sound to be simulated from two speakers.

1857: ES1868F

The series comprised the following models:

  BTC-1853 BTC-1855 BTC-1857 BTC-1859
Plug & Play Yes Yes Yes Yes
FM Synthesis ESFM ESFM ESFM ESFM
General MIDI - Yes - Yes
2-speaker Surround - - Yes Yes

BTC-1853L and BTC-1857L variants were also produced. These lacked the ES961 onboard wavetable.

 

Board Revisions

 

Competition

 

In the Media

 

Setting it Up

I have no configuration information for these cards.


Downloads

Operation Manual
(missing)

Get in touch if you can provide this missing item!

Original DOS Driver Disk
24th May 1996

Installer with ES1868, ESSCFG and ESSVOL utilities.

Original Windows 3.1 Driver Disk
21st Nov 1996

Windows 3.1 Installer

Original Windows 95 Driver Disk
v4.03.35, 23rd May 1996

Windows 95 Drivers for ES1868. Also works for ES488/ES688, , ES1488, ES1688/ES968, ES1788,ES1878 and ES1888.

3D Driver Disk for 1857
17th Apr 1996

DOS driver for 3D on the BTC-1857 (may work with 1859 also)
 

 

More Pictures


A BTC-1853L / BTC-1857L sound card

A BTC-1855 sound card