Ensoniq EPS-16 Plus 1.1.1

What's new

• Added OEX-6 multi-output support in AU and VST3: Main plus separate stereo Bus 2, Bus 3 and Aux 1 outputs, with corrected routing.
• Preserved all 16 external MIDI channels for the original EPS MULTI and MONO modes.
• Added polyphonic/channel pressure and channel-aware controllers, program changes and pitch bend, including CC7, CC64 and CC70.
• Fixed silent playback after recalling presets or DAW projects, including older saved presets.
• Fixed a Windows crash when starting the emulation.

Installation

• macOS: Universal AU and VST3 for Intel (macOS 10.13+) and Apple Silicon (macOS 11+). Extract the ZIP and run Install EPS-16 Plus.command.
• Windows: 64-bit VST3 package.

Original Ensoniq ROM, KPC and OS files are required and are not included.

OEX routing and track selection

Bus 2 and Bus 3 provide separate dry outputs. Their FX SEND settings control whether they also feed the effects/Main output. Aux 1 is a separate dry output and does not feed Main.

With FX=INST, selecting an instrument reloads its effect and can briefly interrupt the whole Main output, as on the original EPS-16 Plus. Use FX=BANK or a global ROM effect for uninterrupted track selection.

This release replaces the withdrawn 1.1.0 release. Existing plug-in identity and older presets remain compatible.

SHA-256 checksums are provided in SHA256SUMS.txt.

Ensoniq EPS-16 Plus 1.1.0 — WITHDRAWN

WITHDRAWN — DO NOT USE

This build has a confirmed no-audio regression. Please use version 1.0.10 until a corrected build is published.

• Download version 1.0.10

We apologize for the faulty release.

Ensoniq EPS-16 Plus 1.0.10

Ensoniq EPS-16 Plus 1.0.10

• Adds a native 64-bit Windows VST3 build.
• Adds compatibility with older EFE exchange files using the uppercase EPS File: header.
• Keeps the universal macOS Audio Unit and VST3 build for Intel and Apple Silicon.
• The macOS installer no longer requires Xcode Command Line Tools (Catalina hotfix).

SHA-256

• macOS universal AU + VST3: 02e51aa61d78b080f9d56d6bf952a881bf0ff72bfe7fdc977b99dc8c97e29996
• Windows x64 VST3: 16729b7f17a2051bd92fa7e2af153fde7340522f507e40ecab038741a2710f0e

Original Ensoniq ROM, KPC firmware and operating-system files are required and are not included.

Ensoniq EPS-16 Plus 1.0.9

Ensoniq EPS-16 Plus 1.0.9

This release contains universal Audio Unit v2 and VST3 plug-ins for Intel and
Apple Silicon Macs in one archive.

Changes

• Added Audio Unit v2 support.
• Added EFE instrument import through the emulator LOAD control.
• Added experimental read-only SCSI ISO mounting for loading instruments from
  EPS CD-ROM libraries and ISO backups. Insert the ISO with the emulator's
  small LOAD button.
• Fixed repeated instrument replacement from the same SCSI image.
• Added experimental Control/Option plus number-key shortcuts for original EPS
  CMD and EDIT pages, with a brief acknowledgement glow.
• Fixed repeated PLAY and STOP actions after recording a sequence.
• Improved host sampling-input timing and regression coverage for EPS sampling
  frequencies.
• Added tolerant loading of physical HFE captures containing unused damaged or
  unformatted sectors.

Compatibility

• Intel: macOS 10.13 or newer (x86_64)
• Apple Silicon: macOS 11 or newer (arm64)
• Both AUv2 and VST3 bundles contain both architectures.
• The bundles are ad-hoc signed and not Apple-notarized; use the included
  Terminal installer before scanning them in a DAW.

Original Ensoniq ROM, KPC firmware and operating-system files are required and
are not included.

SHA-256: 6be6cf64fe3abe4429240315c52732dc7ca15767521e249d04bfabd744de63bd

Ensoniq EPS-16 Plus 1.0.8

Fixes pitch and duration of samples recorded below 44.6 kHz. The emulated ADC now retains the hardware oscillator phase instead of accumulating CPU polling latency; the original Ensoniq OS sampling-rate table and ES5505 playback increments remain unchanged.

Adds an original-OS regression covering all seven EPS sampling rates and their corresponding playback increments.

SHA-256: 059e0bf3339619248de34d0dbc3c836b8b45e7c9f606c987f90785d278e52e4b

Ensoniq EPS-16 Plus 1.0.7

Ensoniq EPS-16 Plus 1.0.7

• Original-OS Sampling Level Detect meter with independent Trigger Sensitivity marker
• Lower CPU and GUI overhead through block-wise display publication and reduced resource polling
• Live LOAD/Instrument volume updates from authentic direct-cell VFD writes
• Live EDIT/Instrument name editing with the original OS cursor commands
• Public plug-in and package name changed to Ensoniq EPS-16 Plus while preserving VST3 project compatibility
• Combined and verified split upper/lower ROM support

Universal VST3 for Intel and Apple Silicon Macs. The copyrighted EPS main ROM, KPC firmware and operating-system disk image must be supplied by the user.

EPS-16 Plus Prototype 1.0.6

Adds direct support for the verified EPS-16 Plus 1.00F U28/upper and U27/lower split ROM dumps. The plug-in identifies both chips by SHA-256 and interleaves them in memory. Existing combined eps16plus-rom.bin installations remain compatible.

EPS-16 Plus VST3 1.0.5

External-file discovery fix

Version 1.0.5 fixes ROM, KPC firmware and OS disk discovery when the VST3 and
the existing EPS_files folder are in different standard installation roots.

The plug-in now searches both locations automatically:

• ~/Library/Audio/Plug-Ins/VST3/EPS_files/
• /Library/Audio/Plug-Ins/VST3/EPS_files/

No files need to be moved or duplicated, and no DAW database change is
required. The included installer from 1.0.4 remains part of the package.

The same universal bundle supports Intel macOS 10.13+ and Apple Silicon
macOS 11+.

SHA-256: 742b7191b939f413fbf5a34813157c61663bbc516452a10c954d32aef9801524

EPS-16 Plus VST3 1.0.4

Installation fix

This patch release adds the included Install EPS-16 Plus.command installer.
It removes download metadata, verifies and locally prepares the universal VST3
outside the DAW's watched plug-in folder, then installs it atomically. This
prevents Gatekeeper from causing a failed first scan to be cached by the host.

No Ableton or other DAW database modification is part of normal installation.

Install

1. Quit the DAW and unpack the ZIP.
2. Open Terminal and type /bin/bash , including the trailing space.
3. Drag Install EPS-16 Plus.command into Terminal and press Return.
4. Add your legally obtained EPS ROM, KPC firmware and OS disk files to the
   installed EPS_files folder.
5. Start the DAW and scan VST3 plug-ins.

The same bundle supports Intel macOS 10.13+ and Apple Silicon macOS 11+.

SHA-256: 35353404ffb22d99589ac2071a3257c598a960a070609338bc4249edf3fbf344

EPS-16 Plus VST3 1.0.3

First stable release of the EPS-16 Plus VST3 emulator.

Highlights

• Expandable 61-key on-screen keyboard with click-height velocity through the original EPS keyboard-controller path.
• Hardware-style Pitch and Mod wheels using the original analog controller inputs.
• Refined panel fader sizing, spacing and full visible wheel travel.
• One universal VST3 bundle containing both Intel and Apple Silicon code.

Compatibility

• Intel x86_64: macOS 10.13 High Sierra or newer.
• Apple Silicon arm64: macOS 11 or newer.
• VST3 only; no Audio Unit is included.

Both slices passed the automated test suite. The Intel build also passed the original-OS keyboard, Pitch and Mod performance workflow under Rosetta with no illegal 68000 instructions. The universal bundle is ad-hoc signed and ZIP-verified.

SHA-256: 57e8a84a37e40cb71ea8b1261f7a849696335d759fcd0aebb6cc74fd523454c1

Original Ensoniq ROM, KPC firmware and operating-system disk files are required and are not included.