Antelope Audio Discrete 4 Audio Interface

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Product Description

The Discrete 4 is a console-grade discrete microphone preamp with vintage gear emulation. Discrete 4 was developed after an extensive research of legendary microphone preamp circuitry. The Antelope Audio FPGA engine transforms its already expensive sounding Accusonic preamps into several classic units. It’s all happening real-time and with as authentic responsiveness as possible.

Antelope Audio Discrete 4 Audio Interface Features
    4 Discrete Mic Preamps
    Console-grade Class A mic pres with discrete transistor design and precise digital gain controls.

    Mic Preamp Modeling
    Turn the Discrete 4 mic pres into a large selection of classic units in real-time

    Real-Time FPGA FX
    AFX including BAE, Grove Hill, Gyraf Audio and Lang classics for use in the Easy Panel or in any DAW

    Rock-Solid Clocking
    Fourth Generation 64-bit Acoustically Focused Clocking (AFC) technology

    Expert Monitoring
    Create multiple mixes with FPGA FX included and send them to Headphone or Monitor outs

    Remote Control
    Access all Discrete 4 features via its intuitive Easy Panel or download the free iOS and Android mobile apps
Bringing All-Star Technology & Performance to a new audience
Antelope Audio’s Discrete 4 Microphone Preamp Interface brings a new level of sound quality and power to home studios and mobile recordists. It comes with 4 console-grade, 6-transistor discrete preamps, 121 db dynamic range conversion and rock solid clocking. Discrete 4 features all of the Antelope Audio premier real-time FPGA FX, including authentic models of iconic gear from BAE, Lang, Gyraf Audio and many more.

The Antelope AFX platform is based on a rapidly expanding hardware modeling engine. Discrete 4 includes Accusonic microphone and preamp models, guitar amps, transformer and tube FX, and a huge selection of classic vintage gear, which are now accessible in the DAW via the new ConnectAFX Plugin.

Discrete 4 is a 14 in and 20 out interface featuring 4 analog ins, 4 analog line outs, stereo monitor outs, 4 headphone outs and 2 ReAmps. Additional digital connectivity comes on S/PDIF and 2 ADAT’s.

An Entire Signal Path of Customizable Sonic Excellence
Discrete 4 was developed after an extensive research of legendary microphone preamp circuitry. Its console-grade and fully discrete preamps were hand designed to offer world-class sound. The powerful Antelope Audio FPGA engine can transform these already expensive sounding Accusonic preamps into classic units via Tube, Transformer and FET based circuitry. It's all happening real-time.

Both the engineer and the performer can instantly hear the authentic blends of 10 different mic preamps without any latency or annoying comb filtering. The microphone source can be recorded with and without Accusonic modeling. This allows the engineer to experiment with different preamp models during mixing. The entire signal path was designed for optimal sound with any microphone and it really shines with Antelope’s new Edge and Verge microphones. These new microphones were specially designed for the Discrete 4 preamps and feature matching discrete electronics.

The real-time FPGA platform offers a complete professional studio experience – Microphones, Preamps, Conversion, Compressors, EQs, Reverb and latency free Monitoring. All this backed up by Antelope's signature Clocking and combined into one unified system with instantly recallable Presets. You can even load AFX Presets from VIP Masters with their favorite combinations of FPGA FX that are used daily on their own award-winning mixes.

A Breakthrough Discrete Microphone Preamp Design
Traditionally, interface preamps are comprised of only 2 transistors, which makes them a hybrid between transistors and IC chips. Antelope Audio incorporates a fully discrete design consisting of 6 accurately matched transistors, yet maintaining the advantages of digital control and repeatability of gain levels. Field effect transistors add an expensive-sounding touch of warmth and naturalness to the sound. Bipolar transistors keep THD and noise extremely low, which is quite uncommon in a discrete design.

Antelope’s console grade 6-transistor discrete preamp is exceptional and unique. The Discrete 4 mic preamps were the first step of the device design process. Unlike other units where mic preamps are added to the interface, the Discrete 4 preamps are actually what the device is centered around.

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Helpful Info about the Manufacturer
Phone:  415-869-9661 Warranty: 

Product Specifications

Antelope Audio Discrete 4 Audio Interface Specifications
    • Analog Inputs:
      • 2 x Mic / Line Inputs
      • 2 x Mic / Line / Hi-Z Inputs
    • Analog Outputs:
      • 1 x Monitor Out on TRS 1/4 Jacks, +20 dBu max
      • 4 x Line Outs on TRS, +20 dBu max 
      • 4 x Stereo Headphone Outputs
    • Mic Preamp:
      • EIN: -128 dBu (A-weighted)
      • Dynamic Range: -121 dB (A-weighted)
      • THD: -106 dB 
      • Max input: +18 dBu
      • Gain Range: 65 dB
    • D/A Monitor Converter:
      • Dynamic Range: 121 dB
      • THD + N: -100 dB
    • A/D Converter:
      • Dynamic Range: 121 dB
      • THD + N: -112 dB
    • D/A Converters(Line Out)
      • Dynamic Range: 118 dB
      • THD + N: - 100dB


      • Digital Inputs
      • 1 x ADAT (up to 16CH)
      • 1 x S/PDIF
      • Digital Outputs
      • 1 x ADAT (up to 16CH)
      • 1 x S/PDIF
      • USB 2.0 I/O 
      • USB 2.0 Type B connector
    • Thunderbolt
      • Thunderbolt connector


      • Word Clock Outputs
      • 3 x Outputs @ 75 Ohms 3Vpp on BNC 32 – 192kHz
    • Clocking System:
      • 4th Generation Acoustically Focused Clocking
      • 64-bit DDS
    • Sample Rates (kHz): 32, 44.1, 48, 88.2, 96, 176.4, 192


    • Operating Temperature
    • 0-50°C, 32-122°F
    • Weight (Approx): 1.7 kg/ 3.7 lbs
    • Dimensions (Approx)
    • Width: 261 mm / 10.2”
    • Height: 44 mm / 1.7”
    • Depth: 208 mm /8.2”
    • Power Consumption: 15 Watts

     System Requirements
      USB 2.0 equipped Mac or PC
      Core 2 Duo minimum, Core i3/i5/i7/Xeon recommended
      4 GB RAM minimum, 8 GB RAM recommended
      Operation system:
      OS X 10.11 (El Capitan) and greater
      Windows 10

Customer Reviews

Review: Corbin Submitted: 5/6/2019

Product Rating4 out of 5 stars.



Works as promised, but wish for more.
Product Rating

Product Review

This interface works great, and just as described. I am using it VIA USB on an AMD machine. I am hoping they stick with development on the software/firmware and release more support for the new AFX2DAW, because I cannot use it at all.

Review: EDWIN ANDRADES Submitted: 1/23/2019

Product Rating5 out of 5 stars.



"Well worth the money"

Product Review

completely professional sound.


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