The Radial Space Heater is an analog summing mixer and studio grade 12AX7 tube overdrive. Its built-in features and routing capabilities allow it to be used in a number of ways. The Heat setting (plate voltage for the tube) as well as the position of the Drive and Level controls will all have an impact on the specifications as we have shown here. The Space Heater can run clean, or run dirty.
Specifications
Block Diagram
Graphs
| 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: 50kΩ in parallel with your load device | Active: 100kΩ | |
| Output Impedance: | Balanced Output: 180Ω | Mix Bus: 100Ω | |
| Common Mode Rejection Ratio: | -70dBu @ 55Hz | |
| Equivalent Input Noise: | 103dBu | |
| Noise Floor: | @ 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 | |
| General | ||
| Construction: | 14 gauge steel chassis and outer shell | |
| Size (L x W x D): | 17.5" x 6" x 1.75" (44.5cm x 15.25cm x 4.45cm) | |
| Weight: | 8.5lb (3.8kg) | |
| Shipping size (L x W x D): | 22" x 10.375" x 4.5" (55.9cm x 26.4cm x 11.4cm) | |
| Shipping weight: | 9.5lb (4.3kg) | |
| Power: | External switching type 100V – 240V AC, 1600mA output with 5 pin XLR | |
| Conditions: | For use in dry locations only between 5°C and 40°C | |
| Warranty: | Radial 3-year, transferable | |
Frequency Response
What do these graphs mean? Learn what to look for and why it matters.
Learn More
