Avalon Design VT-747sp stereo kompresor

Avalon Design VT-747SP

The Avalon VT-747SP combines a creative STEREO tube-discrete Class A spectral-opto-compressor with a musical six band program equalizer, L-R output level and gain reduction metering and internal regulated power supplies in a 2U space. Ideal for high performance DAW input signal conditioning, stereo buss compression-EQ, stereo keyboards and analog mastering applications.

SPECTRAL-OPTO-COMPRESSION
The opto-compressor features a minimum signal path design utilizing sealed silver relays for all signal routing and by pass functions. The optical attenuator acts as a passive level controller with a Class A, variable gain make-up amplifier. Full dynamic control from soft compression to hard-knee limiting can be achieved with master threshold, ratio-compression, attack and release controls. Gain reduction indication is a large analog VU meter. Low frequency and high frequency contour parametric spectral controls can be routed into the side-chain path for enhanced frequency dependent compression with variable frequency and threshold levels. SC listen provides side-chain listen mode for monitoring.

• Circuit topology:Three (3) dual triode vacuum tubes (Sovtek 6922), high-voltage discrete Class A mode.
• Input gain range:Balanced, Class A, 20k ohms, -20dB to +16dB with high gain switch
• Maximum input level:+36dB balanced XLR pin 2 hot
• Maximum output level:+30dB balanced 600 ohms, DC coupled, discrete Class A
• Output type:XLR connector, output trim gain -45dB to +6dB
• Noise 20kHz unweighted:-92dB
• Distortion THD, IMD:0.5%
• Frequency response -3dB:1Hz to 200kHz
• Gain reduction meter:High quality, illuminated gain reduction meter 0dB to -20dB range
• Output meter:Twin 20 segment LED VU meters with -27dB to +30dB range
• Compressor type: Optical passive attenuator
• Make-up gain:Variable 0dB to +10dB stereo tracking
• Threshold - Ratio:Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1
• Attack - Release:Attack variable 2mS to 200mS, release variable 100mS to 5 seconds
• Side-chain spectral contour: Variable threshold -15dB to +15dB, frequency 70Hz to 9kHz twin ranges
• Equalizer type:Discrete Class A, passive design optimized for full range program material
• Frequency bands (6):
- Variable amplitude LF +/-24dB 15Hz shelf response
- Variable amplitude MF1 +/-8dB 125Hz selected Q response
- Variable amplitude MF2 +/-4dB 500Hz selected Q response
- Variable amplitude MF3 +/-4dB 2kHz selected Q response
- Variable amplitude MF4 +/-10dB 5kHz shelf response
- Variable amplitude HF +/-20dB 32kHz shelf response
• AC power:Internal toroidal 100v to 240v, 50-60Hz selectable, 70 watts maximum
• Dimensions: 482 x 305 x 89mm
• Weight: 11,8 kg