The THC (Total Harmonic Compressor) is a two channel hybrid compressor that employs eight valves and four discrete amplifiers to achieve a unique level of control over dynamic range, harmonic distortion content, and tonal balance.



The CARTEC PRE-Q5 is a high quality transformer based microphone preamp for the API 500 series format that incorporates a passive inductor equalizer, and a balanced output attenuator.

The CARTEC Fe-Q5 is a high quality inductor based equaliser for the API 500 series format that incorporates a discrete amplifier stages, a 12dB/octave high pass filter, and both inout and output transformers.

The Cartec EQP-1A is a hand wired valve equalizer, recreating the distinctive sound and features of the classic Pultec EQP-1A.

The EQ-Pre-2A is a stereo preamp ad EQ using the full equalizer circuit and components from our valve EQP-1A, but with solid state discrete op-amps as used in the later 'Pultec' units.