A-Designs Audio Ventura Mic Pre/EQ #JM001036 (Used)

Product Description

Equally ideal for both studio recording and live sound use, the A Designs Ventura is a versatile preamplifier, equalizer and instrument input housed in a single-rack-space frame.

Hand-built in the US, the new A-Designs device features three inputs – microphone, instrument and EQ/insert – which may be used together or independently. The product is also equipped with a highly musical three-band parametric EQ and high/low filters, as well as two independent transformer balanced outputs (microphone and EQ).

The heart of the Ventura is its C12X discrete transistor operational amplifier designed by Carl Johnson that operates on ±30 VDC rails. The C12X is a high-gain, fast-slew, stable audio block with virtually no DC offset over the audio spectrum and is capable of driving a 50 ohm load at 50 Hz with very little current draw. It is used in the microphone preamp, instrument input amp and main output/EQ output stages of the product.

The Ventura's microphone preamplifier is a single-stage, transformer-coupled and balanced I/O design benefiting from the C12X for ultra-transparent audio. This section feeds the EQ and preamp output mult simultaneously and includes phase reverse, a -20 dB pad, +48V phantom power with LED indicator and a plastic conductive gain control pot.

The instrument input preamplifier is a single-stage, single-ended, high impedance input designed primarily with guitar and bass pickups in mind. Similarly utilizing a C12X discrete op amp, this section is separate from the mic pre and includes a 1/4-inch phone jack and gain pot on the front panel. Like the mic preamp, this section also feeds the EQ and preamp output mult simultaneously.

The equalizer input/insert return is a direct-coupled, balanced input that is post the mic pre and the instrument input. Inserting a TRS 1/4-inch phone jack into this connection allows for direct input to the equalizer, bypassing both the mic pre and instrument input.

The Ventura’s three-band parametric equalizer is a unique design featuring 33 frequencies with three bands of overlapping ranges covering from 50 Hz to 15 KHz. Both the frequency selection and the ±12 dB equalization controls are step-type switches for precise and repeatable settings. Each band has a Q switch with three fixed positions: sharp (S), wide (W) and narrow (N). The low and high bands are normally of a peak/dip type, but flipping the shelf switch to the up position on those bands changes the characteristic to shelf type. The shelving switch disables the Q feature on high and low bands only.

When in the up position, the high/low filters insert the fixed 12 dB/octave high- and low-cut filters. These filters work whether the EQ is in or out.

As with all A-Designs Audio products, only the best possible components are used. Resistors are 1% metal film except the EQ, which is 0.1%. Capacitors are all quality polystyrene, polypropylene, COG and bi-polar. Furthermore, input/output XLR connectors and switches are gold/silver contact with no relays.