Editing Gravis UltraSound (section)

===UltraSound Clones and OEM cards===
All clones use the original Gravis GF1 or the AMD InterWave soundchip.

* '''Primax SoundStorm Wave''' (GF1) – there are two variants of cards from the well known scanner and mouse producer. Re-labeled Altrasound as Sound M-16B and different Sound M-16C with 4x CD-ROM Interfaces.
* '''D&B UltraWave''' (GF1) – this card has 512&nbsp;kB onboard RAM by default, upgradeable to 1024&nbsp;kB RAM using a 512&nbsp;kB [[Small-outline J-leaded package|SOJ]]-40 [[dynamic random access memory|DRAM]] chip. Has a DIP socket for a 16&nbsp;kB boot ROM (optional) and an [[integrated drive electronics|IDE]] interface (secondary).
* '''Synergy ViperMAX''' (GF1) – same card later repacked as UltraSound Extreme, but with only 512&nbsp;kB RAM on board.
* '''Expertcolor MED3201''' (InterWave LC) – probably the only card with cut-down variant of GFA1 chip - AM78C200 InterWave LC. First series was with standard Am78C201KC.
* '''Compaq Ultra-Sound 32''' (InterWave) – one of the last InterWave cards was designed for [[Compaq Presario]] desktops. Newer "C" revision of InterWave - AM78C201AKC and TEA6330T fader. Produced by [[STB Systems]].
* '''STB Systems Soundrage 32''' (InterWave) – standard InterWave card missing SIMM slots and IDE interface. There was "Pro" variant with 512 kB RAM. AM78C201KC chip.
* '''Core Dynamics DYNASonix 3D/PRO''' (InterWave) – features additional DSP chip that offered a graphic equalizer and additional sound FX presets.
* '''Philips PCA761AW''' (InterWave) – card design closely resembles the "AMD InterWave OEM Design" prototype. Has a footprint for 512kb RAM, often left unpopulated. AM78C201KC chip.
* '''Reveal WAVExtreme 32''' (InterWave) – AM78C201KC based design. Comes without RAM and has no sockets/footprints to add any.
* As of February 2015 there have been efforts by hobbyists to produce [http://www.vogons.org/viewtopic.php?f=46&t=42431 a new InterWave based UltraSound compatible soundcard] named '''ARGUS'''.
* '''PicoGUS''' ([[OpenSource]]) – Pico Pi ([[RP2040]]) based design started in 2022 by Ian Scott. Community support built up over the subsequent years. As of 2024 its emulation has similar compatibility to an original GUS. The PicoGUS also includes support for Tandy 3 Voice like the [[Tandy 1000]], Game Blaster / Sound Blaster 2.0 ([[Sound Blaster]]), and intelligent mode [[MPU-401]] support. <ref>{{cite web |url=https://github.com/polpo/picogus |title=Polpo/Picogus |website=[[GitHub]] }}</ref><ref>{{cite web |url=https://polpo.org/picogus/ |title=PicoGUS }}</ref>