B&H Photo Video Pro Audio The Professional's Source 800.606.6969 / 212.444.6615
0 $0.00
Your cart is currently empty

You have 0 items in your cart

View Cart & Begin Checkout

N.Y.C. Store Pickup Ready Within the Hour

Rolls GCi404 Audio Computer Interface for Installing in Drive Bay, with Microphone, Line and Phono Input

B&H # ROGCI404 MFR # GCI404
Rolls GCi404 Audio Computer Interface

Rolls GCi404 Audio Computer Interface Back View

Show MoreLess


No Longer Available

What item is right for you?

Ask our Experts!

Roll's GCi404 is an audio interface that mixes a balanced XLR microphone input with a 1/4" TS phone instrument signal and a group of stereo line input signals. The unit is sized to fit inside a drive bay of a computer-tower enclosure. Uses for the interface include commercial audio production, home audio voiceovers, phonograph record to CD recording, etc.

The microphone input provides +12 volt phantom power, a variable level control ranging from no signal to +55dB of gain and a balance control. The instrument input has a level control variable from no signal to +30dB. The line input group of the GCi404 features three types of inputs that include stereo RCA phono, 1/8" TRS phone and a stereo phono preamp with grounding post and built-in RIAA equalization. These signals are mixed at the line level control.

A ducking feature has been included in the GCi404 which, when engaged and a signal is present at the microphone, will duck the remaining input signals under the microphone signal. The ducking controls are located on the rear panel and include depth and release time controls. The depth control adjusts the level of signal reduction while the release control varies the amount of time taken for the program material to return to its previous level. Access to the inside of the computer is required if adjustment to the ducking process is needed.

The GCi404 requires 12VDC and a power supply is included, or the unit may be powered by the computer's internal drive power cable. A CD input has been included on the rear panel for connection to the computer's CD drive and the outputs on the unit are stereo RCA phono and 1/8" TRS phone as well as a 4-pin header to connect to a sound card if installed.

Adds input functionality to a computer sound card
Microphone input with phantom power
Instrument input
RCA line input, stereo 1/8" line input and RCA phono input with ground post and RIAA equalization
Individual level controls for the microphone, instrument and line inputs
Automatic "Ducking" or talkover feature for the microphone input
Stereo RCA phono, 1/8" TRS phone (Stereo) or 4-pin header connector outputs
Rolls GCi404 Audio Computer Interface for Installing in Drive Bay, with Microphone, Line and Phono Input
  • PS27 Power Supply
  • One (1) Year Warranty

    by PowerReviews
    RollsGCi404 Audio Computer Interface

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars



    • 4 Stars



    • 3 Stars



    • 2 Stars



    • 1 Stars



    Reviewed by 2 customers

    Sort by

    Displaying reviews 1-2

    Back to top

    (1 of 1 customers found this review helpful)


    Does the job

    By AV Engineer

    from USA

    About Me Professional Musician


    • Clear Sound
    • Compact
    • Durable
    • Easy To Use
    • Versatile


      Best Uses

      • Lecture capture

      Comments about Rolls GCi404 Audio Computer Interface:

      I have deployed over 250 of these in a classroom environment. We've had a few go bad, but not above the normal failure rate of equipment in large deployments. I use the phantom power in all of the rooms to power a microphone- maybe the other reviewer had bad luck or had not switched the jumper that enables the phantom power? All in all, they have been solid over the past 2 years running 24 hours a day (ours our used outside of the computer and powered by a wall wart).

      Share this review

      (2 of 3 customers found this review helpful)


      Phantom Power does not work

      By Josh

      from Oakdale, MN

      About Me Experienced

      Verified Reviewer


      • Compact


      • Limited Functions

      Best Uses

      • Amateur Recording

      Comments about Rolls GCi404 Audio Computer Interface:

      XLR works with dynamic mics, but since phantom power is not working, condenser mics will not work at all. Sent it to Rolls, and they sent it back without fixing it. Bad service. Would not buy again from Rolls. I wish another company would create an audio interface with XLR and phantom power for the CD drive bay for the PC.

      Share this review


      See more
      Kopul - Studio Elite 4000 Series XLR M to XLR F Microphone Cable - 6' (1.8 m), Black
      • You Pay: $16.99


      See more

      Headphones are essential for real-time monitoring and mixing.

      Polsen - HPC-A30 Closed-Back Studio Monitor Headphones
      • You Pay: $29.99
      Sennheiser - HD 202-II Closed-Back On-Ear Stereo Headphones
      • You Pay: $23.22


      See more
      Senal - ASM-4 Professional Two-Way Active 4" Studio Monitor Speakers (Pair)
      • You Pay: $549.00

      Data Storage Devices

      See more
      G-Technology - G-RAID mini 1TB Dual-Drive Storage System
      • You Pay: $229.95


      See more
      Ableton - Live 9 Intro - Music Production Software
      • You Pay: $73.65
      View all Accessories
      See any errors on this page? Let us know.