JUMPERS

Product Information

The CT1770, actual name Sound Blaster 16 SCSI-2, was the first Sound Blaster 16 card from Creative Labs to come with a SCSI-2 CD-ROM interface instead of IDE or other proprietary interfaces from Panasonic, Mitsumi and Sony. To support this SCSI interface, the card has an Adaptec AIC-6360L controller chip - you need to install an ASPI driver for this chipset from your CONFIG.SYS file followed by the usual MSCDEX in your AUTOEXEC.BAT.

They made these same cards from 1993 through 1995, so DSP versions 4.05 through 4.13 were all used. If you are using Windows 9x, ME, 2000, or XP, and if the drive is installed correctly, it should be detected automatically and installed when the computer first boots up. The CT1703-TBS is apparently decent for noise (low) and is also found on the CT2290, AWE32 and AWE64. Whether you're heading to the office, meeting friends for a casual outing, or enjoying a cozy evening at home, the CD Jumper is a stylish choice. Pair it with jeans for a relaxed yet chic look or dress it up with tailored pants for a more polished ensemble.

Drivers and Install Disks

In June 1992, the Sound Blaster 16 was introduced as the successor to the Sound Blaster Pro, though the Pro was sold for a number of years alongside the SB16. The first '16' model was CT1740. For the first time you could get a Sound Blaster card with CD-quality (44 kHz) digital audio sampling. Sound Blaster 16 Value edition. Most of these have the CT1978 CQM FM synthesizer chip which is almost universally considered poorer quality than a true Yamaha OPL3 chip (some CT2980 cards have the original Yamaha chip which is preferable). If it has the Yamaha chip instead, this is one of the lowest-noise SB16 cards you will find. CT2772 was the same as the CT2770A, but got FCC ID: IBACT-SB16NCDR, which I can only assume means "No CD-ROM", as it didn't come with a CD-ROM interface, but this card did come with a wavetable header which is odd for a value edition card... Board revision 29409 was the original CT2770 and still had the other CD-ROM interface solder pads for Mitsumi and Sony drives, plus the CSP/ASP chip solder pads.

CT2771 is an odd card with no information anywhere on the web - let me know if you have any details of this card. Other Creative cards often used the '1' suffix to indicate it was a "value" version of the "0"-suffixed card, so this is perhaps a "value" on top of a "value" card ;-) Either that, or it's some OEM variant. offers the same high quality sound, plus the facility to upgrade. Also available with advanced signal processing for enhanced sound capability, it features both IDE and Creative/Panasonic CD Rom interface." Following the success of the CT2260 and its first ViBRA-16 card, the CT2800 or Sound Blaster Vibra 16S, uses an updated chip - the ViBRA 16S (CT2504).

How to determine the CD drive type

Most third-generation cards come with the Creative Labs CQM chip instead of true OPL3 Yamaha chip, but there are cases where a Yamaha chip is present. The vast majority of these cards are jumper-free and are fully ISA Plug & Play. CT2910 /CT2911 / CT2919 Once connected, turn on the computer and enter BIOS setup. Verify that the IDE (integrated drive electronics) device is set up as Auto or CD Drive. Once verified, save the settings and reboot the computer. The CT2260 was an OEM version of the CT2230, though with some major differences. The CT2330's integrated CT1747 (FM synth chip) was replaced with Creative's new ViBRA-16 chip - CT2501. This was Creative's answer for the OEM market for Sound Blaster 16 - a cheap and cheerful solution that integrated the bus controller interface, DSP, mixer and codec into a single chip. This same chip would go on to be used on the Sound Blaster 32 range and many more budget ("Value edition") cards. The CT2749 was identical to the CT2740 but was marketed without the CSP/ASP chip (though still supported this option). More Images

The majority of Sound Blaster 16 cards feature either a discreteYamaha YMF262OPL-3 FM synthesizer as used on the Sound Blaster Pro II, or a Creative CT1747 chip which has this synthesizer integrated. Some post-1995 cards (notably the CT2910) feature the fully compatibleYamaha YMF289FM synthesis chip instead. All of these contain true Yamaha OPL-3 circuitry. The MPU-401 interface on the 15-pin game/MIDI port continued to be non-standard (the pinouts differ from the Roland standard). The design of the Sound Blaster 16 board, which varied from model to model, could further exacerbate CQM's inaccuracies. Despite its shortcomings, it was much more faithful-sounding than the sample-synthesis simulation that AudioPCI-based sound cards employ. Boards utilizing CQM synthesis have a CT1978 chip, or they may have CQM integrated into another chip, e.g. ViBRA16C/X-based boards. The CT1790, also called Sound Blaster 16 Sony is the same as the CT1740 but with a Sony CD-ROM interface. More ImagesWith its timeless design and clean lines, the CD Jumper exudes elegance and versatility. It can be easily dressed up or down, making it suitable for various occasions and outfit combinations.