Space Heater 500™ - Specifications

The Space Heater 500 is a device that is designed to add color and distortion to the signal path. Specifications such as distortion, noise or phase shift simply do not apply. One must read the specifications with an eye towards 'the type of distortion' that is being generated and there is no better indicator than the even-order harmonic distortion that is evident when looking at the FFT (Fast Fourier Transform) where a near-perfect cascade flows. Even-order harmonic distortion is both pleasing to the ear and when applied in moderation, can truly enhance tracks without interfering.

Circuit type:  Thermionic Gain stage with solid state input and output buffers
Frequency response: 20Hz - 20KHz ± 1dB
Total harmonic distortion:  Varies with Drive and Level settings
Dynamic range:  92dB
Input impedance – bypassed:  50K
Input impedance – active:  1M
Maximum input:  +20dBu
Maximum gain:  32dB@140V, 27dB @70V, 13dB @35V
Clip level - output:  +22dBu 
Output impedance:  100Ω 
Equivalent input noise:  -102dBu 
Noise floor:  -70dBu 
Intermodulation distortion:  Varies with drive and level settings 
Common mode rejection ratio:  -60dB
Unity gain control position:  Drive & level at about 11 o'clock
Controls: Drive, Level, Hi-Cut filter, Lo-Cut filter
Switches:  "Heat", EQ Pre/Post, IN 
Switches - rear panel:  Heater polarity selection
Filter slopes:  12dB/Octave 
Omniport function:  Unbalanced instrument input
Construction:  500 Series module
Finish: Durable powder coat
Size: (W x H x L) 5.3" x 1.6" x 6.7" (134mm x 40mm x 170mm)
Weight:  1.55lb
Shipping size: (W x H x L): 6.7" x 1.9" x 9.1" ( 170mm x 48mm x 231mm)
Shipping weight: 2lb
Conditions: For use in dry locations only between 5°C and 40°C
Warranty:  Radial 3-year, transferable
Specifications are subject to change without notice.