Vt-747sp is a brilliant and innovative design with
an incredible compressor and sweet no-nonsense EQ.
With TSP engaged mixes are fat and rich with harmonics.
The Vt-747sp is very versatile and is an awesome finishing
processor across the stereo buss during mixdown. I
also plan to use it during direct to tape recording
of stereo keyboards and for project studio mastering.
It has a unique and distinctive sound and looks great
too." - Dale
Vt-747sp is the fattest and cleanest sounding piece
I've ever heard!"
- Scott S., FL
just wanted to let you
to know that you guys make great front of house gear!
I have a Vt-747sp across the buss mix on the house console
and I love it! The 32k EQ really opens up the P.A. Thanks
for the great gear, keep up the good work." - Eric C.,
am using the Vt-747sp as a mastering tool in my sound system.
The effect has been dramatic. I even have ordinary punters
telling me the sound is great. Best wishes from Ireland."
- Tony H., Ireland
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.
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.
SIX BAND PROGRAM EQUALIZER
The VT-747SP equalizer utilizes 100% discrete, Class A high-voltage
transistors for optimum sonic performance. The six band STEREO program
EQ incorporates the smooth characteristics of an all passive design.
The frequency turnover, Q and amplitude ranges have been carefully
chosen for each band to provide the most natural harmonic balance
and lowest phase change while offering simple and effective tone
control. The EQ can be placed pre or post the opto-compressor for
TSP - TWIN SIGNAL PATH
The VT-747SP features TSP which gives you the choice of either tube
tone or the classic, Class A discrete transistor sound by exchanging,
three (3) high-voltage dual triode tubes with discrete amplifiers
in the opto-compressor and primary output stages.
INPUT-OUTPUT and METERING
Fully balanced DC coupled, Class A discrete amplifiers are utilized
for the input and output drive interface with+36dB input headroom.
A high quality analog VU meter indicates accurate gain reduction.
Twin 60dB range LED meters provide fast L-R output status of all
CLICK TO SEE ENLARGED VERSION
CLASS A, VACUUM TUBE-DISCRETE
TWIN SIGNAL PATH OPTO-COMPRESSOR-EQUALIZER
- Stereo Class A opto-compressor with spectral control
- Stereo Class A six band discrete passive program
- TSP twin signal path, vacuum tube bypass
- Low noise -92dB
- Fully balanced Class A input and DC coupled outputs
- Stereo dynamic 60dB high resolution output meters
- High quality analog VU meter for gain reduction
- High headroom+36dB input before overload
- Spectral side-chain monitor for pre listen
- EQ pre-post selection for opto-compressor
- Sealed silver relays for all signal routing
- Internal discrete regulated power supplies
- Military spec vacuum tubes for long life and low
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
||XLR connector, output trim
gain -45dB to +6dB
|Frequency response -3dB
||1Hz to 200kHz
|Gain reduction meter
High quality, illuminated gain reduction meter 0dB to -20dB range
||Twin 20 segment LED VU meters with -27dB to +30dB range
||Optical passive attenuator
||Variable 0dB to +10dB stereo tracking
||Threshold variable -30dB to +20dB, ratio-compression variable 1:1 to 20:1
||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
||Discrete Class A, passive design optimized for full range program material
|Frequency bands (6)
amplitude LF +/-24dB
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
||Internal toroidal 100v to
240v, 50-60Hz selectable, 70 watts maximum
||19 x 12 x 3.5 in (482 x 305 x 89mm)
||21 x 18 x 8 in (533 x 457 x 203mm)
PRICE: U.S.$ 2,900