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Everything In Music - Since 1958
Everything In Music - Since 1958

Ampeg SGT-DI Bass Preamp and DI Effects Pedal

by Ampeg
Original price $399.99 - Original price $399.99
Original price $399.99
$399.99 - $399.99
Current price $399.99
♫ In stock
About Inventory Status

Call or text us at 301-946-8808.

In stock: It is in stock and available to ship or pickup. Apparel must be shipped from another location and is not available for in-store pickup. We can usually ship or have these items available for pickup by the next business day if they don't require inspection, special handling, or setup. Our pickup location is 11151 Veirs Mill Rd. Silver Spring, MD 20902.

📆 Preorder: It is on the way to our warehouse. We can't predict when preorder items will arrive due to current supply chain issues. If you place an order for one of these items someone will contact you to estimate the delivery date.

Out of stock: We don't currently have it available but you're not out of luck yet. We still may be able to get it. If you order one of these items we will contact you with an estimated fulfillment date. You have the option to cancel the order if you change your mind.

Special order: The item is so special that it needs to be custom ordered for you. Some of these items are works of art and have to be made individually. Orders for special order items must be prepaid and we cannot accept cancellations or refunds.

█ Sold out: We don't think we can get this item because it was either discontinued by the manufacturer or was limited in quantity. If you want or need this item call or text us. Sometimes we can help you track down the item through other sources or help you find something similar.

About Item Conditions

Call or text us at 301-946-8808.

New: The item is brand new as received from the manufacturer with a full manufacturer warranty. Instruments such as guitars, snare drums, drum kits, brass and woodwind instruments may be opened for photography and quality control inspection and may not be in a factory sealed box.

Mint or Open Box: The item may have been opened and tested but has been repackaged. The original packaging may have superficial issues but the item itself and any originally included accessories are in perfect, like new condition.

Display Model: These items are so cool that we put them on display in our legendary shop. The condition is brand new as received from the manufacturer with manufacturer warranty. Rest assured, these items undergo a very careful inspection before shipping.

Demo: These items have been on our sales floor for demo purposes and will likely show signs of use. The original packaging may no longer be included, but you can be assured that you are receiving an awesome item and an awesome price.

Used: The item is used. These item may have varying degrees of wear. Please read the description for information about the condition of the item. Used items do not carry a warranty.

B or C Stock: Factory refurbished. These items were purchased from the manufacturer in a refurbished condition. They will show some cosmetic issues, but nothing that would impact performance. Being that these are sealed from the manufacturer, we generally do not open these to photograph the cosmetic issues. They are guaranteed to work and may have a limited warranty or you may purchase an extended warranty in some cases. Please see the listing description for item specific information.

Sculpt Your Bass Sonic Landscape with the Ampeg SGT-DI Bass Preamp and DI Effects Pedal

The SGT-DI™ preamp and DI gives modern bassists an entire rig in a single stompbox. It delivers an enhanced Super Grit Technology™ overdrive circuit featuring iconic Ampeg SVT® and B15 voices, versatile 3-band EQ now with sweepable Mid circuit, Ultra-Hi and 3-way Ultra-Lo switches, a variable compressor, and an Aux /Headphone section. Plus! Introducing the first IR Loader/Cab Simulator from Ampeg. Choose from three classic factory cabs or up to three cabs of your own by using the free Ampeg IR Loader application.

  • 3-Band EQ with sweepable Mid circuit
  • SGT circuit with SVT and B15 voicing switch
  • Onboard IR Loader/Cab Simulator
  • Ultra-Hi and 3-way Ultra-Lo switches
  • Variable 10:1 compressor

What is an IR

A speaker cabinet impulse response or “IR” is essentially a digital audio snapshot of a cabinet that captures the acoustic characteristics of that specific cab, along with the signal chain used to record it—microphone(s), preamp(s), cable, etc.—and the room in which it was recorded. IRs allow you to “virtually” switch between different cab sounds in the same way you would swap physical cabs.

SGT-DI is the first physical Ampeg product featuring IRs and IR loading

SGT-DI comes with six preloaded Ampeg factory cab IRs, three of which may be replaced with your own: Cab Mode includes Ampeg Heritage B-15, Heritage SVT-410HLF, and SVT-810 Squareback IRs. User Mode includes overwritable Ampeg SVT-112AV, SVT-210AV, and SVT-212AV IRs. The Cab Level control enables you to adjust and save the amount of cab IR sound in your signal. The IR Off Mode bypasses the IR circuitry altogether.


  • Total Impedance: 1 Mohm (nominal)
  • Headphone Output: Output Impedance: 22 Ohms 25mW max. power out at 32 Ohm load impedance
  • Signal-to-Noise Ratio: 106dB (20Hz-20 kHz, A-weighted, Preamp and SGT disabled) 102dB (A-weighted, Preamp engaged with tone controls flat, boosts off)
  • Maximum Gain
    • Preamp Out: 57dB (at 1kHz, EQ flat, Preamp and SGT enabled, maximum Grit, maximum Volume)
    • 17dB Clean Gain (Preamp only, tone controls flat, boosts off)
    • Headphone Out: 57dB (at 1kHz, EQ flat, Preamp and SGT enabled, maximum Grit, maximum Volume, Cab Mode disabled)
    • XLR Out: 37dB (at 1kHz, EQ flat, Preamp and SGT enabled, maximum Grit, maximum Volume, Cab Mode disabled)
  • External Power Requirements: 9V DC @ 500mA, center-negative (use the included adapter)
  • Tone Controls
    • Bass: +15/-12dB at 40Hz
    • Mid: +/-14dB at selected frequency
    • Treble: +/-20dB at 8kHz
    • Ultra Lo Boost: -10dB at 500Hz, +2dB at 40Hz
    • Ultra Lo Cut: -17dB at 40Hz
    • Ultra Hi: Enhances the amount of high frequency output by 9dB at 8kHz
  • Size (H x W x D): 2.5 x 7.4 x 4.9 inches / 65 x 189 x 126 mm (with side panel knobs recessed, no rubber feet applied) 2.5 x 7.9 x 4.9 inches / 65 x 201 x 126 mm (with side panel knobs extended, no rubber feet applied)
  • Weight: 1.9 lbs / 0.85 kg

Manufacturer: Ampeg
Model: SGT-DI
SKU: I752172-N-1-WHX
UPC: 614252332316

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