Tag: saa1099

2 matching upgrades

Showing 2 products.

Status Product What it does Compatibility Links

Status	Product	What it does	Compatibility	Links
AvailableChecked Jul 27, 2026	KRAKEN ZX Spectrum MultiCloneby Lotharek compatible system fpga z80 512kb rgb ulaplus turbosound saa1099 covox soundrive usb c	A current ZX Spectrum-compatible motherboard for an original 48K or Spectrum+ case, with real and FPGA Z80 modes, 512 KB of RAM, enhanced video, and extensive audio. The assembled and tested Revision 1.5C motherboard exposed an order path on 2026-07-27. It requires a separate original 48K or Spectrum+ case, keyboard membrane, video cable, display, and 9 V AC or DC supply rated for at least 400 mA with the documented 2.5/5.1 mm plug. Power polarity does not matter. Lotharek separately sells its 9 V, 1.5 A PWR4 for KRAKEN, without a country-specific mains lead. The page's layout drawing shows Revision 1.5B, which differs slightly. External DivMMC or DivIDE hardware may not work in turbo modes. Sources Lotharek KRAKEN product page Lotharek KRAKEN announcement Lotharek PWR4 page	Lotharek KRAKEN Exact model	Buy the KRAKEN motherboard Buy the compatible PWR4 9 V power supply
PreorderChecked Jul 27, 2026	SuperULAby Lotharek ula replacement fpga memory rgb ulaplus turbosound saa1099 covox soundrive usb c internal upgrade soldering	Replaces the ULA, video RAM, upper RAM, and RF modulator in Issue 2 through 6 ZX Spectrum 48K boards while adding modern video, sound, memory, and machine modes. The seller listed availability after 2026-08-31 and exposed a preorder path on 2026-07-27. Installation is invasive: remove the ULA and RF modulator, disable or remove the original DRAM, connect M1, RESET, IORQ, and RFSH at the Z80, and install the supplied RGB adapter and ribbon cable. The output is digital RGB only, not composite or YUV. Verify board issue, pin 1, wiring, case clearance, display compatibility, and the current installation guide before work. Sources Lotharek SuperULA page Lotharek SuperULA announcement	Sinclair ZX Spectrum 48K Exact model Sinclair ZX Spectrum+ Exact model	Preorder SuperULA

AvailableChecked Jul 27, 2026

KRAKEN ZX Spectrum MultiCloneby Lotharek

A current ZX Spectrum-compatible motherboard for an original 48K or Spectrum+ case, with real and FPGA Z80 modes, 512 KB of RAM, enhanced video, and extensive audio.

The assembled and tested Revision 1.5C motherboard exposed an order path on 2026-07-27. It requires a separate original 48K or Spectrum+ case, keyboard membrane, video cable, display, and 9 V AC or DC supply rated for at least 400 mA with the documented 2.5/5.1 mm plug. Power polarity does not matter. Lotharek separately sells its 9 V, 1.5 A PWR4 for KRAKEN, without a country-specific mains lead. The page's layout drawing shows Revision 1.5B, which differs slightly. External DivMMC or DivIDE hardware may not work in turbo modes.

Sources

Lotharek KRAKEN Exact model

Buy the KRAKEN motherboard Buy the compatible PWR4 9 V power supply

PreorderChecked Jul 27, 2026

SuperULAby Lotharek

Replaces the ULA, video RAM, upper RAM, and RF modulator in Issue 2 through 6 ZX Spectrum 48K boards while adding modern video, sound, memory, and machine modes.

The seller listed availability after 2026-08-31 and exposed a preorder path on 2026-07-27. Installation is invasive: remove the ULA and RF modulator, disable or remove the original DRAM, connect M1, RESET, IORQ, and RFSH at the Z80, and install the supplied RGB adapter and ribbon cable. The output is digital RGB only, not composite or YUV. Verify board issue, pin 1, wiring, case clearance, display compatibility, and the current installation guide before work.

Sources

Sinclair ZX Spectrum 48K Exact model
Sinclair ZX Spectrum+ Exact model

Preorder SuperULA