Darkglass Exponent 500 - 500W Bass Amplifier Head


In stock
Weight:  5.00
Retail Price: $1,399.99
Our Price: $999.99

Or pay $83.33/mo. Financing options

Out of stock
1 in stock.


The Exponent is “out of the box” an amplifier without added effects. It is uncomplicated, and intuitive. Once connected to the Darkglass Suite, it offers fully programmable and presettable signal chains with all the multi-effect component options a professional bassist requires.


Darkglass E500 Front Panel

Front Panel Features

Use this jack to connect your instrument via a standard ¼” mono cable.

Use this knob to control the overall volume of the amplifier.

There are five Quick-Pots on Exponent 500’s front panel (a, b, c, d and e) .

By default, these pots are mapped to the Amp EQ’s four frequency bands and a preset-specific control. In the Darkglass Suite, you can freely bind the Quick-Pots to your selection of any five controls from the effects in your signal chain.

Pressing the preset button changes through presets 1 to 5 and a bypass signal. The current preset is shown with a single LED next to the preset number. When e500 is bypassed, all preset LEDs show a dim white color.

Long-press the preset button to start Bluetooth pairing. All preset LEDs will breathe white while pairing is active.

Pressing the mute button toggles mute on the physical outputs. When e500 is muted, all preset LEDs will illuminate with a dim red color.

Darkglass E500 Rear Panel

Back Panel Features

Speaker Output
Use this connector to connect the amplifier to your cabinet. The SpeakON Combo jack allows for SpeakON or ¼” speaker cable operation. The minimum load impedance is 4 Ω. Exponent 500 can be operated without a cabinet.

Effects send
Use this output to send the signal to your outboard gear.

Effects return
Use this input for the signal from your outboard gear.

Headphone Output
The 1/4" stereo headphone output handles headphones with an impedance of 16 - 600 ohms. Connect your headphones and control the output level with the master volume. The headphone output has an output impedance of <1 Ω and a maximum output level of 13.3 dBu (3.6 Vrms).

XLR direct output
Direct output signal unaffected by master volume. The maximum output level before clipping is 2.2 dBu (1 Vrms).

Ground Lift
Use this control to lift the ground of the XLR output. If you are experiencing ground noise in your DI signal, try changing this control.

Standard DIN connector. Use the 7-pin MIDI connector only with the Darkglass MIDI footswitch, and use a 5-pin connector with other MIDI equipment.

The USB-C port unlocks Exponent 500’s USB audio interface capabilities and allows for software updates via the Darkglass Suite. USB MIDI In/Out is also supported.

AC Socket
Connect mains power to the amplifier. There is a voltage selector for 100-120 / 200-240 VAC, 50-60 Hz.


Darkglass Suite

Exponent 500 comes preloaded with five versatile factory presets. Using e500 with the Darkglass Suite isn’t necessary, but is recommend! Darkglass Suite unlocks the full potential of Exponent 500 by providing an interface to interact and modify the signal chain running on each preset. Use the iOS or Android versions of the Darkglass Suite to create, edit, share, and apply presets.



  • Processing:
  • Fully digital audio processing
  • Input Impedance:
  • 1MΩ
  • Maximum Power Output:
  • 500 W RMS @ 4Ω 250 W RMS @ 8Ω
  • Direct Out:
  • XLR direct out, unaffected by master volume.
  • Effects loop:
  • Maximum send level before clipping: 12.8 dBu (3.4 Vrms).
    Maximum return level before clipping: 12.8 dBu (3.4 Vrms)
  • Power Amp Input Level:
  • 2400 mV RMS
  • Pre-Amp Output Impedance:
  • 1kΩ
  • Pre-Amp Output Level:
  • 2400 mV RMS
  • Headphone output:
  • Maximum output level before clipping: 13.3 dBu (3.6 Vrms)
  • Audio interface:
  • USB-C 4 input channels and 4 output channels (48 kHz or 44.1 kHz sample rate).
  • Potentiometers:
  • Six digitally read potentiometers (Five Quick-Pots and one Master Volume).
  • Bluetooth:
  • (BLE and A2DP)
  • MIDI in/out:
  • 7-pin DIN connector (works only with Darkglass MIDI footswitch).
    5-pin DIN connector for use with other MIDI equipment
  • Tuner:
  • Chromatic tuner, notes between A0 and A#5
  • Maximum Power Consumption:
  • approx. 700VA
  • Cooling:
  • Fan cooling, 1600 to 3800 RPM
  • AC Input Power:
  • 100-120/210-250 VAC (using selector switch on left side panel).
  • Cycles:
  • 50/60 Hz



  • Width:
  • 21 cm / 8.3″
  • Length:
  • 17.5 cm/ 6.9″
  • Height:
  • 6 cm / 2.4″
  • Weight:
  • 1.65 kg / 3.64 lb

Model: E500
Manufacturer: Dark Glass