Sound Devices SL-6 SuperSlot Powering & Wireless System – Sound Hard
Sound Devices SL-6 SuperSlot Powering & Wireless System

Sound Devices SL-6 SuperSlot Powering & Wireless System

Regular price $1,495.00

"When used with the SL-6 accessory, the 688 provides tight integration and control of wireless manufacturers’ slot-compatible receivers with no cabling required."

--Paul Isaacs, Vice President of Marketing at Sound Devices

The optional SL-6 powering and wireless system simplifies interconnection between the688and multiple channels of wireless by accepting three dual-channel slot-in receivers. The SL-6 offers all powering and audio interconnection for standard slot-in receivers and additional control and monitoring when used with SuperSlot-compatible receivers. The SL-6 easily attaches directly to the 688's top panel and also offers antenna signal distribution to further declutter the bag.


With its NP1 battery slot, USB charging port, two 12 V isolated outputs, and two non-isolated direct battery outputs, the SL-6 is a great powering hub for peripheral devices in a sound mixer's bag.

Regarded as the industry’s first non-proprietary, open wireless control and interfacing standard, SuperSlot, developed by Sound Devices, is the result of its collaboration with a number of leading wireless manufacturers including Audio Ltd, Lectrosonics, Sennheiser and Wisycom. The standard allows for all powering and audio interconnection, plus control and monitoring between SuperSlot-compatible mixers and receivers.

SL-6 Compatible Wireless Receivers
Manufacturer Model SL-6 Compatible
(Audio and Powering)
SuperSlot compatibility
(Control and Monitoring from 688 LCD)
Audio Ltd En2 CX2-P --
Lectrosonics SRa ✓ with SRb & audio board updates from Lectrosonics
Lectrosonics SRb ✓ with audio board update from Lectrosonics
Wisycom MCR42 ✓ with SLK42-IKSS rear panel adapter

Key Features
  • Accepts three dual-channel slot-in wireless receivers for a total of six channels.
  • Compatible with existing slot-in and new SuperSlot wireless receivers.
  • Ability to set SuperSlot-compatible receiver frequency and power on/off from the 688.
  • Ability to monitor SuperSlot-compatible receiver battery, audio and RF levels from the 688.
  • Accepts analog or digital audio depending on wireless receiver.
  • Built-in antenna signal distribution
  • NP-1 battery slot for powering 688, receivers and external peripherals.
  • USB charging port.
  • Two 12V isolated outputs.
  • Two non-isolated direct battery outputs.
  • PowerSafe 10-second power reserve.
  • Easy to attach to the 688.