ESI U108 PRE 10-Preamp / 8-Output USB Audio Interface

ESI U108 PRE 10-Preamp / 8-Output USB Audio Interface

ESI U108 PRE 10-Preamp / 8-Output USB Audio Interface

B&H # ESIU108 MFR # ESI-U108
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Product Highlights

  • High-Speed USB 2.0 Computer Interface
  • Up to 24-Bit / 96 kHz Resolution
  • 10 x Mic Preamps with Phantom Power
  • 2 x XLR-1/4" Inputs with Hi-Z Switches
  • 8 x XLR 3-Pin Microphone Inputs
  • 8 x 1/4" TRS Line Outputs
  • 2 x 1/4" Mix Outputs, 1/4" Headphone Out
  • Power, 48 VDC & Input Level LEDs
  • Includes Power Adapter & USB Cable
  • Compatible with Mac & Windows Computers
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ESI ESI-U108 overview

  • 1Description

The ESI U108 PRE is a high-speed USB 2.0 audio interface offering ten mic preamps, eight line outputs, and 24-bit / 96 kHz resolution, making it ideal for recording bands in the studio, live performances on stage, or multi-guest podcasts at home. Connect instruments such as guitar and bass to the two front-panel combo jacks, then select the Hi-Z switches for optimal signal transfer. A total of ten XLR inputs (two via the combo jacks) are provided, and selectable phantom power ensures proper operation of condenser microphones as well as dynamic mics.

Utilize the eight 1/4" TRS line-level outputs to route submixes or individual tracks to a console, summing mixer, or multichannel headphone amplifier. Hook up a pair of monitors and headphones to the U108 PRE's 1/4" mix outputs and stereo headphone jack. LEDs across the front panel clearly indicate input levels, phantom power selection, and power status.

The U108 PRE is compatible with Mac and Windows computers and includes a power adapter and one USB cable. Bundled software and licenses from Bitwig, Stanton, and Audified open creative opportunities for musicians, DJs, and podcast producers.

Per-input gain control and 3-stage level LEDs
Ten microphone preamps—two with XLR-1/4" combo inputs and selectable Hi-Z operation
48 VDC phantom power selectable for channel 1, channel 2, channels 3-6, and channels 7-10
Eight 1/4" TRS line outputs for routing to an external mixer
Dedicated 1/4" stereo mix output jacks fed by an integrated monitoring mixer with controls for input 1-10 level, output 1-8 level, and mono/stereo mode
Front-panel 1/4" stereo headphone output with source selector
Supports Mac via CoreAudio, and Windows via ASIO 2.0, MME, WDM, and DirectSound (including DirectWIRE)
High-speed USB 2.0 computer connection
Includes Bitwig 8-Track DAW software, a license for Stanton's Deckadance LE DJ software, and a license for Audified's inTone 2 ESI Edition jamming tool
In the Box
ESI U108 PRE 10-Preamp / 8-Output USB Audio Interface
  • 12 VDC Power Supply
  • USB Cable
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    ESI ESI-U108 specs

    Channels of I/O Analog:
    10 Inputs / 8 Outputs at 96 kHz
    Max Sample Rate/Resolution 96 kHz / 24-Bit
    Display and Indicators 1 x LED (Power)
    4 x LEDs (Phantom Power)
    30 x LEDs (Input Level)
    Host Connection 1 x USB Type-B (USB 2.0)
    Analog I/O 2 x Combo XLR / 1/4" TRS Balanced/Unbalanced Mic/Line/Hi-Z Input
    8 x 3-Pin XLR Balanced Mic Input
    8 x 1/4" (6.3 mm) TRS Balanced/Unbalanced Line Output
    2 x 1/4" (6.3 mm) TRS Balanced/Unbalanced Monitor Output
    1 x 1/4" (6.3 mm) TRS Unbalanced Headphone Output
    Phantom Power +48 V (Selectable on Individual Inputs, On 4 Channels)
    Digital I/O None
    MIDI I/O None
    Memory Card Slot None
    Frequency Response AD/DA Converters:
    20 Hz to 20 kHz ±0.02 dB 
    Dynamic Range A/D Converters:
    107 dBA 
    D/A Converters:
    112 dBA 
    Digital Audio
    Sample Rates Up to 96 kHz (AD/DA Conversion)
    Bit Depth Up to 24-Bit (AD/DA Conversion)
    Sync Sources Internal
    OS Compatibility macOS 10.7 or Later
    Windows 7
    Windows 8.1
    Windows 10
    Required Hardware USB 2.0 Port
    Internet Connection Required for Registration, Software/Driver Download
    Power Requirements AC/DC Power Adapter (Included)
    AC/DC Power Adapter 12 VDC (Included)
    Anti-Theft Features Kensington Security Slot
    Dimensions 17.72 x 5.71 x 1.77" / 45 x 14.5 x 4.5 cm
    Weight 4.7 lb / 2.1 kg (Without Accessories)
    Packaging Info
    Package Weight 6.32 lb
    Box Dimensions (LxWxH) 23.0 x 7.0 x 4.0"

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