Name: Radial Space Heater 8 Channel Summing Mixer
Brand: Radial Engineering
SKU: SPACE-HEATER
Price: 2199.99 USD
Availability: InStock

Description

Radial Space Heater 8 Channel Summing Mixer

8-Channel Summing Mixer & Tube Drive

The Space Heater is an 8-channel tube overdrive that can be used as an analog summing mixer or as a multi-channel studio effects device, utilizing the tube circuitry for a range of effects from subtle warmth and grit to full harmonic distortion.

Warm up your digital tracks
The Space Heater is a high performance summing mixer that allows you to blend tracks out-of-the-box in the analog domain, with oversized output transformers and vacuum tubes for vintage warmth and character. Eight mono input channels or four stereo pairs are available, with a heat switch on each pair to adjust the voltage on the 12AX7 tube - lower voltage settings starve the tube for a more pronounced distortion effect. Separate Drive and Level controls on each channel give you complete control over each tube circuit, providing a range of tones that allow you to fatten up digital stems or provide a distorted effect on vocals, guitars or drums.

Space Heater Applications

Software insert
Use the Space Heater™ on eight individual tracks in your mix to add grit or character. Adjustable Level and Drive tailors the level of distortion from subtle to extreme.

Summing 8 or more channels to stereo
Complete your final summing out-of-the-box by sending stereo stem mixes to the Space Heater. Mix four stereo stems down to a master stereo output, or link multiple Space Heaters together for analog summing heaven!

With in-ear monitors
Get the natural feel and tone back into your in-ear monitors by adding the natural compression of tube distortion into the signal path. It's like playing in front of your amp without the stage noise!

Features:

12AX7 vacuum tube overdrive & summing mixer
Heat switch adjusts voltage applied to each tube
Individual outputs to use as an 8-channel effects insert
Transformer-coupled outputs for vintage tone
On
Used to turn on (or bypass) each of the four channel sets.
Bus
Sends the channel set to the stereo mix bus and headphones.
Drive
Outer control on each concentric pot sets the level going to the tube drive circuit.
Heat
Sets the B+ voltage going to the 12AX7 tube with 35, 70 or 140 volts for more or less distortion.
Level
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.
HPF
High pass filter gently rolls off low frequency resonance below 40Hz to remove excessive bass.
Mix Bus
Turns on the XLR outputs. Used to adjust the summing mixer output level.
Headphone
Stereo 1/4" headphone output with level control.
Power
Turn the Space Heater off to conserve tube life and reduce power consumption and heat.
Power
5-pin locking XLR connection for the external power supply.
Link
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.
Ground Lift
Recessed switch lifts pin-1 on the two XLR outputs to help reduce hum and buzz caused by ground loops.
D-Sub Outputs
25-pin D-sub is used to send all 8 transformer isolated channels back to the mixing console or workstation.
Send
Eight ¼" TRS balanced sends feed the post tube signal to an external processor or may be used as additional outputs for parallel processing.
Receive
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.
D-Sub Input
25-pin D-Sub follows the Tascam/ProTools standard and is wired in parallel to the ¼" jacks.
Inputs 1-8
Eight ¼" TRS balanced inputs for easy connection to the Space Heater.
Warranty: Radial 3-year, transferable

Specifications:

Audio circuit type: Class-A tube gain stage with IC buffers
Number of channels: 8
Frequency response: 20Hz – 20Khz, +0/-3dB
Dynamic range:96dB
Gain: +33dB@140V, +29db@70V, +27dB@35V
Clip Level: +26dBu
Input Impedance: Bypasses: 50k? in parallel with your load device | Active: 100k?
Output Impedance: Balanced Output: 180? | Mix Bus: 100?
Common Mode Rejection Ratio: -70dBu @ 55Hz
Equivalent Input Noise: 103dBu
Noise:@ Max Gain: -64dBu @ 140V, -66dBu @ 70V, -70dBu @ 35V
Maximum Input:+22dBu
Features:

LPF
Input Connectors: 1/4" TRS, D-Sub
Output Connectors:XLR, 1/4" TRS, D-Sub