by Ampeg

The SCR-DI by Ampeg is a single-channel, portable bass preamp intended for stage and recording use. Designed to bring tube-like grit to solid-state design, this DI provides on-board EQ controls and Ampeg's proprietary Bass Scrambler Overdrive, both of which can be switched on and off with the tap of your foot. Ultra-Hi and Ultra-Lo options are also provided, and a -15 dB pad jumper renders the unit suitable for both active and passive basses. Housed in die-cast zinc and secured by rubberized feet, the SCR-DI offers multiple connection points: one 1/4" input, two auxiliary inputs (1/4" and 1/8"), an 1/8" (3.5mm) headphone jack, a 1/4" thru port for connecting parallel effects processing, a 1/4" unbalanced line out, and a balanced XLR output. Finally, the unit features a ground lift switch to help eliminate electrical hum at the XLR port, and can be powered by either a 9V battery or a 9-12VDC external power supply (both available separately).

Tonal control
  • Legacy Ampeg preamp and tone-stack circuits
  • 3-band parametric EQ with bass, mid, and treble
  • Proprietary Ultra-Hi and Ultra-Lo selectors
  • Proprietary Bass Scrambler Overdrive circuit help emulate classic Portaflex and SVT sounds
  • Separate drive and blend controls
  • Footswitches to toggle options on and off
  • -15 dB pad jumper underneath bottom panel mitigates high-output sources
  • Dedicated XLR balanced line output with ground lift
  • Affected 1/4" output
  • Unaffected 1/4" "thru" output
  • 1/8" (3.5mm) headphone jack
  • 1/4" and 1/8" (3.5mm) aux inputs for playing along to backing tracks
  • Die-cast zinc chassis construction
  • Metal switches
  • Rubber feet keep the SCR-DI in place