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.