The G25 “VocalShape” is our elaborate all-in-one box for vocal recording. It is an all-tube
unit, consisting of a preamplifier stage, a filter and an equalizer section, a compressor, and
finally a single stage of frequency-selective clipping for control of resonances. Every and
all parameters optimized for – and only for – recording vocals.
First of all this is a tube device: All active functions, all amplification stages processing your
signal are based on old-fashioned thermionic valves. This means that the unit usually will
take 10-15 minutes from power-on before stabilizing into its working conditions. You can
off course still use it during this time, but don’t expect too much precision or
predict-ability before it’s settled.
So it’s a tube pre-amplifier, followed by a tube equalizer, feeding a vari-mu tube
compressor, which in turn drives the output stage containing a single band of passive
frequency-selective clipping.

Details | Technical

All this packed in a 19″ 3u tall box…

• Preamplifier optimized topology of G9
• Input switch selects between Line, Mic, and Mic+P48
• Mic/Line Inputs are floating transformer balanced
• Line load is ca. 10K Ohms, Mic load ca. 2K Ohms
• Instrument input jack on front with very-high-Z input
• Mic gain +70dB, Line gain 43dB, Instrument 53dB
• Eq HPF 50Hz or 120Hz, High/Low shelving boost/cut Bax at 6dB/Oct
• Shelving EQ combined with the Linear Tilt circuit from G23
• Vari-mu Compressor of G10. 20ms Attack, var. Release 50ms-1.6sec
• De-resonance/Clipper frequency-selective clipping circuit of G21