Tag: dual ay

2 matching upgrades

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Status Product What it does Compatibility Links

Status	Product	What it does	Compatibility	Links
AvailableChecked Jul 28, 2026	AY FPGA Dual AY TurboSoundby Lotharek ay 3 8912 fpga chip replacement stereo dual ay turbosound	FPGA-based AY-3-8912 replacement with the original Amstrad sound path and an optional separate three-channel stereo output. The Lotharek page exposed a login-or-register-to-buy path, and Retro Lemon showed the module in stock on 2026-07-28. Retro Lemon identifies it as an AY-3-8912 replacement that auto-detects Amstrad or ZX operation and says normal installation is a no-solder socket swap. Optional CPC 6128 stereo output still requires removing or cutting resistors R117 through R120 and wiring AL and AR or a separate jack. Exact ZX models, other chip footprints, orientation, voltage, clock, and firmware remain undocumented, so no ZX target is attached. Sources Lotharek AY FPGA Dual AY TurboSound page Retro Lemon AY FPGA page	Amstrad CPC 6128 Exact model	Buy the AY FPGA Dual AY TurboSound Buy AY FPGA from Retro Lemon
AvailableChecked Jul 27, 2026	BISON FPGA DivMMC TurboSound 2xAYby Lotharek divmmc microsd esxdos 512kb turbosound dual ay covox soundrive joystick mouse fpga edge connector	Combines DivMMC-compatible microSD storage, 512 KB of expansion RAM, dual-AY audio, DAC modes, and configurable joystick or mouse input on the ZX expansion bus. The seller exposed a login-or-register-to-buy path on 2026-07-27 and documented firmware 1.5. Power off before changing the edge connection or input mode. Automatic Sinclair-versus-Amstrad selection depends on 9 V at edge pin 3B; compatible clones without that signal need the documented modification. Firmware updates require a separate Gowin programmer and removal of the flash ROM. Prepare a separate FAT32 microSD card with the supported ESXDOS release. Sources Lotharek BISON FPGA page DivTIESUS project repository	Sinclair ZX Spectrum 48K Exact model Sinclair ZX Spectrum 128K Exact model Amstrad ZX Spectrum +2 Exact model Amstrad ZX Spectrum +2A Exact model Amstrad ZX Spectrum +2B Exact model Amstrad ZX Spectrum +3 Exact model ZX Spectrum expansion-bus hardware Bus/interface	Buy BISON FPGA DivTIESUS open project

AvailableChecked Jul 28, 2026

AY FPGA Dual AY TurboSoundby Lotharek

FPGA-based AY-3-8912 replacement with the original Amstrad sound path and an optional separate three-channel stereo output.

The Lotharek page exposed a login-or-register-to-buy path, and Retro Lemon showed the module in stock on 2026-07-28. Retro Lemon identifies it as an AY-3-8912 replacement that auto-detects Amstrad or ZX operation and says normal installation is a no-solder socket swap. Optional CPC 6128 stereo output still requires removing or cutting resistors R117 through R120 and wiring AL and AR or a separate jack. Exact ZX models, other chip footprints, orientation, voltage, clock, and firmware remain undocumented, so no ZX target is attached.

Sources

Amstrad CPC 6128 Exact model

Buy the AY FPGA Dual AY TurboSound Buy AY FPGA from Retro Lemon

AvailableChecked Jul 27, 2026

BISON FPGA DivMMC TurboSound 2xAYby Lotharek

Combines DivMMC-compatible microSD storage, 512 KB of expansion RAM, dual-AY audio, DAC modes, and configurable joystick or mouse input on the ZX expansion bus.

The seller exposed a login-or-register-to-buy path on 2026-07-27 and documented firmware 1.5. Power off before changing the edge connection or input mode. Automatic Sinclair-versus-Amstrad selection depends on 9 V at edge pin 3B; compatible clones without that signal need the documented modification. Firmware updates require a separate Gowin programmer and removal of the flash ROM. Prepare a separate FAT32 microSD card with the supported ESXDOS release.

Sources

Sinclair ZX Spectrum 48K Exact model
Sinclair ZX Spectrum 128K Exact model
Amstrad ZX Spectrum +2 Exact model
Amstrad ZX Spectrum +2A Exact model
Amstrad ZX Spectrum +2B Exact model
Amstrad ZX Spectrum +3 Exact model
ZX Spectrum expansion-bus hardware Bus/interface

Buy BISON FPGA DivTIESUS open project