Advanced Gravis Computer Technology Ltd.

       HEAD OFFICE:                          US DISTRIBUTION CENTER:
       7400 MacPherson Ave, Suite 111        1790 Midway Lane
       Burnaby, BC, Canada                   Bellingham, WA, USA
       V5J 5B6                               98226

      Tel (604) 431-5020  Fax (604) 431-5155  BBS (604) 431-5927 V32bis

       Gravis UltraSound(tm) - CD Quality Sound From Your PC

Now you can add unheard of audio realism to you games and presentations.
UltraSound is the most advanced sound technology available, delivering
16 bit, crystal clear sound to your IBM or compatible PC.  True CD quality,
wave table synthesis and stereo recording make UltraSound the ultimate
sound solution.

CD QUALITY SOUND
================
 UltraSound delivers 16 bit - 44.1kHz sound with 96 db of dynamic range
 for true CD quality sound at an affordable price.

32 VOICES
=========
 Supports 32 digital and/or synthesized voices for richer sound effects
 and music quality.

WINDOES MULTIMEDIA
==================
  UltraSound supports Windows Multimedia Extensions for added sound impact
  in presentaion and business programs.  UltraSound includes multi-source
  mixing capabilities and meets or exceeds MPC standards.

WAVE TABLE SYNTHESIS
====================
  Step beyond the limitations of FM synthesis.  Wave table synthesis is
  based on real sounds - it provides more realistic sound reproduction
  and an infinite range of musical instruments.

COMPATIBILITY PLUS
==================
  "Compatibility" is your assurance that UltraSound will work with existing
  games that support AdLib and Sound Blaster. "Plus" means UltraSound will
  provide better quality sound from sound files and games designed for
  other sound boards.

RECORDING/SAMPLING
==================
  UltraSound features 16 bit digital recording with sample rates from 2 to
  44.1kHz in either mono or stereo.  Separate circuits allow for
  simultaneous recording or playback.

STANDARD MIDI INTERFACE
=======================
  Industry standard MIDI interface (UART 6850) supports MIDI In, Out and
  Thru with an optional low cost cable adapter.  Compatible with most MIDI
  programs.

JOYSTICK PORT
=============
  Many of today's most popular games require a speed compensating game port
  when used on fast PCs.  UltraSound's built-in speed compensating game
  port supports PCs up to 50 MHz 486 and beyond.  Connect a second joystick
  with an optional "Y" cable.

AMPLIFIED OUTPUT
================
  Built-in 2 watt amplifier supports desktop speakers and headphones

EASY INSTALLATION
=================
  Installation software eliminates the confusion of jumpers and technical
  jargon.  UltraSound provides full 16 bit bus support and can be installed
  in either an 8 or 16 bit expansion slot.

256K ONBOARD MEMORY
===================
  Upgradeable to 1 megabyte with standard DIP memory chips.

OPTIONAL ADD-ON BOARDS
======================
  16 bit Stereo Recording
  CD ROM Interface
 (Available 1st Qtr 93)

SYSTEM REQUIREMENTS
===================
  IBM PC or compatible XT, AT, 286, 386, or 486
  DOS 3.0 or greater
  286 or greater recommended
  Hard disk recommended


                                        Ad Lib     AdLib Gold 1000
                                          |               |
                               UltraSound | Sound Blaster | Sound Blaster Pro
                                    |     |      |        |         |
Synthesized Voices                 32    11     11       20        22
CD Quality Sound                    *
Digital Audio Voices               32     0      1        2         2
Stereo Digital Voices             16/32   0      0        1         1
Stereo Synthesis                    *                     *         *
On-card Memory                    256k   None  None     None      None
Speed Adjusted Game Port            *
MIDI Interface                      *
Stereo Sample Rate (kHz)         2-44.1  None  Mono    1-44.1     4-22
MPC & Windows 3.1 Compatible        *                     *         *
Recording Resolution (bits)      8/16*                   12         8
CD ROM Interface                    #                     #         #
On-board Mixer                      #                     #         #

 # Optional


Suggested Retail (US):              $199.95
Pkg. Size                           9 1/2" x 4 1/2" x 12"
Unites per Master Carton:           10
Hardware Req'd:                     IBM PC, XT, AT, 286, 386, 486
Hardware Recommended:               Hard Drive
On-board Memory:                    256k
Software Req'd:                     DOS 3.0 or greater
Digital Audio:                      8 and 16 bit
Digital Stereo Channels:            32
Voices:                             32 Voice
Signal to Noice Ratio:              80 db
Total Harmonic Distortion:          < .014%
Stereo Amplifier:                   Built-in, 2W
Digital Recroding (stereo):         8 or 16 bit
Variable Sample Rates:              2-44.1kHz
MIDI Support:                       Ind. Std (6850 UART)
MIDI Connectors:                    In, Out, Through