Used to turn on (or bypass) each of the four channel sets.
Sends the channel set to the stereo mix bus and headphones.
Outer control on each concentric pot sets the level going to the tube drive circuit.
Sets the B+ voltage going to the 12AX7 tube with 35, 70 or 140 volts for more or less distortion.
Sets the output from the tube drive - acts like a master volume on a tube guitar amp.
Tube Drive On
Activates the tube drive – may be bypassed to compare wet versus dry or revert to the transformer coupled signal path.
High pass filter gently rolls off low frequency resonance below 40Hz to remove excessive bass.
Turns on the XLR outputs. Used to adjust the summing mixer output level.
Stereo 1/4" headphone output with level control.
Turn the Space Heater off to conserve tube life and reduce power consumption and heat.
5-pin locking XLR connection for the external power supply.
Stereo ¼” TRS link in/out bus combines 2 or more Space Heaters together for 16x2, 24x2 or 32x2 tube summing.
Stereo Sum Outputs
Provide left and right summed outputs for the most luxurious old school analog character.
Recessed switch lifts pin-1 on the two XLR outputs to help reduce hum and buzz caused by ground loops.
25-pin D-sub is used to send all 8 transformer isolated channels back to the mixing console or workstation.
Eight ¼” TRS balanced sends feed the post tube signal to an external processor or may be used as additional outputs for parallel processing.
Eight ¼” TRS balanced receive jacks bring the signal back to the Space Heater and routes it to the D-Sub output or stereo mix bus.
25-pin D-Sub follows the Tascam/ProTools standard and is wired in parallel to the ¼” jacks.
Eight ¼” TRS balanced inputs for easy connection to the Space Heater.