The IGS Audio Tilt n Bands is a stereo parametric equalizer featuring a vintage design. Its vintage circuit makes it perfect for mastering applications.
"Once when I was a little boy, I heard my uncle's equalizer which he built into his stereo. The sound was incredible. I still remember it to this day. Three potentiometers gave it a sound that I'd never heard before. I couldn't stop listening to the sound that his compact player made.
"I asked my uncle for the diagram and he drew it with a pencil on a piece of paper. I quickly learned the schematic by heart and as an electronic engineer amateur, I have repeatedly built the hi-fi amplifiers using the schematic. The EQ sounded implausible each time.
"After many years I decided to make a studio device based on my uncle's schematic. I improved the arrangement by adding a transformer balanced tube stage. The Tilt turned out to be a cool addition too. This vintage circuit is very useful in any mastering application. I hope, you will feel the vibe of my uncle's old radio equalizer."
- Q factor: 0.5 to 5
- Hard wire bypass: yes
- Input impedance (balanced): 10 kOhm
- Output impedance (balanced): 600 Ohm
- Operating level:+4 dBu nominal
- Max output level: @1.6% THD +37 dBV; +26 dBV @20 Hz
- Noise level: -120 dB
- Frequency response 20 Hz to 40 kHz, +/-0.3dB
- Distortion: (@20 Hz - 20 kHz)
- THD+N: 0.08% (1 kHz @+4 dBu)
- Crosstalk: > 120dB
- VU Meters: Magic eye
- Voltage: 230/115
- Power consumption: 64W
- Power supply : Linear, internal