PROMO UDO SP8+ Voice Upgrade Kit
Expansion Card
UK Delivery - From £2.99
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Want to Click and Collect or try items at our Guildford Store?
The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.
The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.
Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose click and collect as your delivery option online or, during store opening hours, call our sales team at 01483 456777 to place a 10% deposit.
If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.
Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.
If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.
Please be aware that, unless you have paid a deposit to reserve the item, it will continue to be free, both online and in-store, for another customer to buy. Therefore we would advise you to place a 10% deposit by either using the on-line click and collect service or calling us 01483 456777.
SKU: PROMO-SP8PLUS
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Product Description
The 20 Voice Polyphony upgrade brings four additional voices to your Super 8 synthesiser, increasing polyphony from 16 to 20 and matching the Super Gemini’s voice count. Supplied as a complete kit, it includes four voice cards, all necessary components and an in-depth instruction manual for a simple plug-and-play installation, no soldering or technical expertise required. Before fitting, make sure you have downloaded and installed the latest firmware from our U.D.O's website. After installing the voice cards and upgrading to firmware v1.33 (or later), perform the built-in autotune by holding MANUAL LOWER + SINGLE together for five seconds while the Super 8 is on hold; the synthesiser will tune the filters across all 20 voices. Once the autotune finishes, power-cycle the unit. On subsequent start-ups, a brief flourish across the patch LEDs will confirm the synthesiser is operating in 20-voice mode. This upgrade delivers a clean, reliable expansion of sonic capability for live and studio use.
Key Features:
- Expanded Polyphony:
Adds four voices to increase polyphony from 16 to 20, matching the Super Gemini for thicker chords and richer textures. - No-Solder Installation:
Complete plug-and-play kit with voice cards, fittings and a detailed manual — no soldering or specialist tools required. - Firmware-Assisted Autotune:
Requires firmware v1.33+; built-in autotune aligns filters for all 20 voices when you hold MANUAL LOWER + SINGLE for five seconds.
Specifications:
- Upgrade Type: 20 Voice Polyphony Upgrade for Super 8 synthesiser
- Adds: 4 voice cards (total voices: 20)
- Compatibility: Super 8 hardware — matches Super Gemini voice count
- Firmware Required: v1.33 or later (download from our website)
- Installation: Plug-and-play; no soldering required; includes instruction manual and all necessary items
- Autotune Procedure: With unit on hold, press and hold MANUAL LOWER + SINGLE simultaneously for 5 seconds; unit will autotune filters
- Post-install Confirmation: Power cycle; patch LEDs display a flourish to indicate 20-voice mode
- Intended Use: Live performance and studio
- Support: Firmware and instructions available from our website