If you are looking for the same "Quartet" of instruments (Piano, Guitar, Bass, Drums) with modern high-quality standards, these free alternatives are highly recommended: Spitfire Audio Labs - Soft Piano: Renowned for high-quality, cinematic realism. Pianobook: A massive community library of uniquely sampled pianos. Guitars & Bass: Ample Guitar M Lite / Ample Bass P Lite:
Searching for "free" downloads of this discontinued software often leads to sites hosting .
The Guitar and Bass sections of the Super Quartet.
macOS users face an even steeper battle, as modern macOS versions have completely dropped support for 32-bit software. Where to Safely Find Legacy Software
The plugin was revolutionary because it offered high-fidelity sounds with very low CPU usage, making it a staple for home studios in the early 2000s. Key Features & Sound Quality 1. High-Resolution Samples
Here are the best, free alternatives that provide better quality, 64-bit stability, and are available for free in 2026: 1. The Best All-In-One Alternative: Spitfire Labs
The Edirol Super Quartet (HQ-OR) remains a legendary name in the world of early 20th-century digital music production. Released in the early 2000s by Roland’s Edirol division, this Software Synthesizer (Sound Module) specialized in four core instrument groups: Piano, Guitar, Brass, and Bass.
Look for reputable software preservation archives.
: Official support and updates (such as version 1.5.2) are generally only available for existing owners through legacy pages like Cosmos Music Roland - Global Free & Quality Download Options
Spitfire Audio offers a completely free, continuously expanding collection of high-quality instruments recorded by professional engineers in London.
Many websites offering "free high-quality VST downloads" package the old installers with malware, adware, or trojans. Because the software is no longer updated, these modified installers are common vectors for computer infections. 3. Compatibility Issues (The 32-bit vs. 64-bit Problem)
If you need a lightweight, high-quality ROMpler for Piano/Bass/Guitar/Drums, forget the virus-ridden EDIROL and use these free VSTs instead: