Next-Generation Smart Bass Architecture with Complete Bluetooth Signal Chain Customization

The Guitar Sanctuary is proud to present the Darkglass Electronics Exponent 500 Bass Amplifier Head. Redefining what a compact bass amplifier can accomplish, the Exponent 500 (e500) combines a high-headroom 500-watt Class-D power amplifier with Darkglass's most advanced digital DSP architecture to date.

The true power of the Exponent 500 lies in its seamless Bluetooth connectivity and full integration with the Darkglass Suite app. Instead of being locked into fixed preamp circuits, the e500 acts as a clean digital canvas: instantly load, route, and swap dozens of virtual effects pedals, preamps, graphic/parametric EQs, pitch shifters, and studio-grade modulation routines directly in any order. Save your custom signal chains to five quick-recall top-panel preset slots for instantaneous stage switching.

Product Intelligence & Tone Mapping:

• Best For: Studio Session Recording, Modern Metal, Fusion, Direct Worship Outlets, and Rehearsal Rigs
• Tone Profile: Ultra-Clean Dynamic Base, Completely Customizable Multi-FX Processing, High-Definition IR Cab Depth
• Compared To: Darkglass Microtubes 500 v2, Darkglass Infinity 500, Neural DSP Desktop Rigs
• Sanctuary Expert Note: The Exponent 500 effectively replaces an entire pedalboard and outboard rack unit. Being able to program custom drive, EQ, modulation, and impulse response cab models inside the Darkglass Suite app—and stream audio via Bluetooth—makes this the most flexible 500-watt bass head on the market.

Key Performance Features & Hardware Matrix:

• 500 Watts RMS Output: Clean, dynamic Class-D power section designed to drive 4-ohm or 8-ohm speaker cabinets with effortless punch.
• Bluetooth & Darkglass Suite App Control: Wirelessly edit effect chains, swap virtual pedals, re-order routing, stream audio, and manage preset banks on iOS or Android.
• 5 Programmable Preset Slots: Instant access to five custom multi-FX signal chains via dedicated physical top-panel controls.
• High-Resolution IR Cabinet Simulation: Store and load custom Impulse Responses for direct front-of-house feeds and silent studio recording.
• Integrated USB Audio Interface: Multi-channel USB-C recording interface built directly into the head for plug-and-play DAW recording.
• Comprehensive Professional I/O: Balanced XLR Direct Output with Ground Lift, MIDI In/Thru for switcher integration, Headphone Output with dedicated volume, Effects Loop, and Aux Input.

Technical Specifications:

• Amplifier Type: Solid State Class D with Digital DSP Processing Engine
• Power Rating: 500 Watts RMS @ 4 Ohms (250W @ 8 Ohms)
• Inputs: 1 x 1/4" Instrument, 1 x 1/8" Aux In, MIDI In (5-Pin DIN), Bluetooth Audio Receiver
• Outputs: 1 x SpeakON 1/4" Combo Speaker Out, 1 x XLR Balanced DI Out, 1 x 1/8" Headphone Out
• Effects Loop: 1 x 1/4" Send, 1 x 1/4" Return
• USB & Software: USB-C Audio Interface & Darkglass Suite App Desktop/Mobile Integration
• Controls: 5 x Programmable Quick-Recall Preset Knobs, Master Volume, Input Gain, Preset Selection Buttons

Front Panel Features Input: Use this jack to connect your instrument via a standard ¼” mono cable.

Quick-Pots: 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.

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

Preset: 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. Mute: Pressing the mute button toggles mute on the physical outputs. When e500 is muted, all preset LEDs will illuminate with a dim red color. DIMENSIONS: 21x17.5x6cm / Weight: 1,65kg


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. WARNING: Do not use an instrument cable with this jack. Using an instrument cable can damage your amplifier. 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. MIDI In: 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. USB: 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.

WARNINGS

• No user-serviceable parts inside the amplifier. Do not open the amp
  
• Never use the amp at a high moisture environment or near liquids
  
• The Exponent 500 can deliver more than 115 dB of power. Exposure to this level of sound can damage your hearing. Use proper hearing protection if you will be exposed
  
• The Exponent 500 can deliver more than 500 Watts. Be sure that your speaker cabinet is able to deliver that power
  
• Do not cover the vent holes. The Fan and vent holes are part of the cooling system of the amp. Covering the vent holes can damage the power amp by overheating it
  
• Don’t use an instrument cable as speaker cable. An instrument cable is not designed to deliver the type of power signals sent from the amplifier to the speaker.