A-Designs Ventura SE Solid-State Microphone and Instrument Preamp with 3-Band EQ

A-Designs Ventura SE Solid-State Microphone and Instrument Preamp with 3-Band EQ

A-Designs Ventura SE Solid-State Microphone and Instrument Preamp with 3-Band EQ

A-Designs Ventura SE Solid-State Microphone and Instrument Preamp with 3-Band EQ

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Product Highlights

  • Versatile 3-Input / 3-Output Design
  • Mic Preamp with 72 dB of Gain
  • Instrument Preamp with Direct Output
  • Parametric EQ with 33 Frequencies
  • Discrete Operational Amplifiers
  • Jensen Input Transformer
  • Cinemag Output Transformers
  • 48V Phantom, Polarity Switch, 20 dB Pad
  • 1 RU Steel Chassis
  • Made in the USA
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A-Designs Ventura SE overview

  • 1Description

The A-Designs Ventura SE is a solid-state preamplifier with a microphone section, an instrument section, and a 3-band EQ, which may be used together or independently, all with individual inputs and outputs. This versatile 3-input / 3-output architecture enables you to route and patch effects into the signal path in a variety of ways while maintaining high audio fidelity. Designed for live sound applications or to integrate with the digital world as the front end of a DAW setup, the Ventura SE provides a clear and transparent signal with all the detail, air, extended bass, and warmth characteristic of high-quality, discrete analog circuitry. Drive the unit a little harder, and the output transformers saturate to give you additional sound coloration, while retaining clarity.

At the heart of the Ventura SE lie three, specially-designed, discrete bipolar transistor operational amplifiers, which are powered off high-voltage rails. The op-amps offer high gain, a fast slew rate, and a stable audio block with virtually no DC offset over the audio spectrum. The circuits are capable of driving a low load with little current draw. The Main and Mic/Instrument outputs are both equipped with Cinemag balanced output transformers.

The mic pre uses a Jensen input transformer with a balanced, single-stage discrete op-amp. It features a phase reverse switch, a -20 dB pad, +48V phantom power, and a gain control. The preamp offers 72 dB of gain and simultaneously feeds the EQ section and a dedicated preamp output. The front-panel Instrument input feeds a single-stage discrete op-amp, which is separate from the mic pre. This high-impedance, unbalanced preamplifier design is ideal for guitar and bass pickups, as well as keyboards such as vintage synthesizers. The instrument preamp also feeds the EQ and preamp output simultaneously.

The 3-band, Quad-Eight-style parametric EQ features thirty-three frequencies grouped into three overlapping bands with frequencies ranging from 50 Hz to 15 kHz. Dual concentric knobs allow you to pick frequencies and impart 12 dB of boost or cut. Each band has a Q switch with three fixed positions: Sharp, Wide, Normal. Additionally, the low and high bands are switchable from peak to shelving filters.

Ventura SE New Features
  • Three separate discrete inputs, one for each section—mic, instrument, and EQ
  • Three separate discrete outputs, one for each section—mic, instrument, and EQ
  • High/Low output gain switch for the instrument section
  • Faceplate with black texture coat finish
Key Features
  • Independent microphone preamp, instrument preamp, equalizer
  • Solid-state design
  • Three specially designed discrete operational amplifiers
  • Jensen input transformer
  • Cinemag balanced output transformers—main and direct outputs
  • Insert points between mic preamp, instrument preamp, and equalizer
  • Single, 1 RU rackspace steel chassis
  • Neutrik XLR input and output connectors
  • Separate gain controls for mic and instrument input sections
  • -20 dB mic pad switch
  • +48 VDC phantom mic power
  • Phase switch for the mic
  • Blue LED power indicator
  • On/off switch
  • Toroidal power transformer
  • Metal film resistors, polypropylene, C0G and bipolar capacitors
  • Discrete mic preamplifier with 72 dB of gain
  • Discrete instrument input preamplifier
  • Red LED phantom indicator
  • True 3-band parametric equalizer
  • Two filters—high-pass and low-pass
  • 1/4" TRS balanced insert return and EQ input
  • Aluminum knobs
  • Silver-contact, high-durability toggle switches (no relays)
  • External switchable line power from 110 to 220 VAC
  • Made in the USA
Microphone Preamplifier
  • Balanced, single-stage discrete op-amp
  • Transformer-coupled design
  • Gain control knob
  • +48V phantom power with LED indicator
  • Switchable phase reverse and -20 dB pad
  • With the Source switch set to Mic, the signal is fed to both the Main/EQ output and the transformer Mic/Instrument output, simultaneously
  • Feed mic signal to FOH and/or external FX, power amps, and more
Instrument Preamplifier
  • High-impedance, unbalanced preamplifier independent from the mic-pre is designed for guitar and bass pickups, and keyboards such as vintage synthesizers
  • Uses a single-stage, discrete op-amp
  • 1/4″ TS Switchcraft input jack with a gain pot on front panel
  • High/Low gain switch on the back panel
  • Separate, unbalanced instrument direct output jack breaks the signal feed to the Mic/Instrument output and EQ sections
  • Direct Out Mult gives you a 600-Ohm, +4 dBm transformer-balanced output that does not affect the signal being fed to the EQ section
  • With the Source switch set to Instrument the signal is fed to both the Main/EQ output and the transformer Mic/Instrument output, simultaneously
  • Feed instrument signal to FOH and/or external FX, power amps, and more
3-Band Parametric EQ
  • 3-band modified Quad-Eight-style parametric equalizer featuring 33 frequencies
  • Three overlapping bands with frequencies ranging from 50 Hz to 15 kHz
  • Both the frequency selection and the boost/cut controls are stepped for precise, recallable settings
  • Each band has its own Q switch with three fixed positions—Sharp, Wide, and Narrow
  • Low and high bands are equipped with peak/dip switches to change their characteristic to shelf type
  • Fixed, second-order 12 dB-per-octave high- and low-pass filters with knees at 9 kHz and 150 Hz
  • EQ input/insert return jack provides a direct, balanced input to the EQ, which bypasses both the mic preamp and instrument preamp, and allows for independent access to the EQ
In the Box
A-Designs Ventura SE Solid-State Microphone and Instrument Preamp with 3-Band EQ
  • IEC Power Cord
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    A-Designs Ventura SE specs

    Input Impedance Microphone: 1.4 kOhms, typical
    Instrument: 20 MOhms, nominal
    Insert / EQ: 15 kOhms
    Gain Input Range Microphone: -62 to +30 dBv
    Instrument: 70 dB
    Insert / EQ: 0 to +26 dBv
    Noise (EIN) -120 dBm
    Phantom Power +48 VDC
    Outputs XLR (Balanced): 600 Ohms, nominal
    Frequency Response 20 Hz to 20 kHz
    Distortion 0.01%
    Power Requirements 120-230 VAC
    23 W
    Dimensions 19.0 x 1.8 x 10.0" / 483 x 45 x 254 mm
    Weight 14.0 lb / 6.4 kg

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