Ampeg SGT-DI Blue Line Anniversary Edition: 75 Years of Legendary Bass Tone

The Ampeg SGT-DI Blue Line Anniversary Edition, released in 2025 at $399, celebrates 75 years of Ampeg’s dominance in bass amplification with a limited-edition cosmetic tribute to the iconic 1969 SVT amplifier. Functionally identical to the standard SGT-DI Bass Preamp/DI Pedal, this anniversary edition features exclusive Blue Line graphics inspired by the original SVT’s distinctive aesthetic and includes a bonus 75th Anniversary IR Pack with three classic Ampeg cabinet simulations.

Ampeg SGT-DI Blue Line Anniversary Specifications

Specification	Detail
Type	Bass Preamp/DI Pedal (Limited Edition)
Street Price	$399 USD
Overdrive	Super Grit Technology (SVT & B-15 voicings)
EQ	3-band with sweepable mids, Ultra-Hi & 3-way Ultra-Lo
Compressor	Variable 10:1 ratio
Cabinet Sim	IR Loader (3 factory + 3 custom + Anniversary IR Pack)
Bonus	75th Anniversary IR Pack (SVT-610HLF, SVT-810AV, SVT-15E)
Outputs	XLR DI, 1/4″ preamp out, headphone/line out
USB	Type-C
Weight	1.9 lbs

Blue Line Heritage Graphics

The “Blue Line” name refers to the distinctive blue-and-white aesthetic of the original 1969 Ampeg SVT, one of the most important amplifiers in the history of electric bass. That amplifier, with its 300-watt all-tube design, defined the sound of rock bass for generations and remains a benchmark that modern bass amps are measured against. The Anniversary Edition SGT-DI wears graphics that pay direct homage to that heritage, making it both a functional tool and a collector’s piece for Ampeg enthusiasts.

Exclusive Anniversary IR Pack

Registered owners of the Blue Line Anniversary Edition receive a free 75th Anniversary IR Pack containing impulse responses of three classic Ampeg cabinets: the SVT-610HLF, SVT-810AV, and SVT-15E. These IRs can be loaded into the pedal’s cabinet simulator alongside the three factory IRs and up to three additional custom IRs, expanding the tonal palette with authentic Ampeg cabinet tones that have been captured from the real hardware.

Same Professional Feature Set

Beyond the cosmetics and bonus IR pack, the Blue Line Anniversary Edition delivers the same comprehensive feature set as the standard SGT-DI. The Super Grit Technology overdrive with SVT and B-15 voicings, the three-band EQ with sweepable mids, the variable 10:1 compressor, and the full complement of I/O including XLR DI, USB-C, and headphone output all remain identical. This ensures that the Anniversary Edition is every bit as capable as the standard model for gigging, recording, and practicing.

Who Should Buy the Blue Line Anniversary Edition

This edition is a natural choice for Ampeg loyalists and collectors who appreciate the brand’s history, players who were already planning to buy the SGT-DI and prefer the anniversary aesthetic, and bassists who want the bonus Anniversary IR Pack with classic Ampeg cabinet simulations. At the same $399 price as the standard model, the only reason not to choose this version is if you prefer the original black graphics.

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Frequently Asked Questions

Is the Blue Line Anniversary Edition different from the standard SGT-DI?

Functionally, they are identical. The Anniversary Edition features exclusive Blue Line graphics celebrating Ampeg’s 75th anniversary and includes a bonus IR Pack with three classic Ampeg cabinet simulations (SVT-610HLF, SVT-810AV, SVT-15E).

Is the Ampeg Blue Line Anniversary Edition limited?

Yes, this is a limited edition release with anniversary graphics. Availability may be limited once initial production runs sell through.

For more on Ampeg’s current bass amplification lineup, explore our coverage of the Venture V3, V7, V12, and Venture cabinets.