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RapcoHorizon LTIBLOX Interface

Plug a laptop or other device into a pro audio mixer

Item #: 852LTIBLOX

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1 Review

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Lord of volume

RapcoHorizon's LTIBLOX adapter

This handy device lets you plug your computer audio output into a PA system.

Trying to plug your laptop into your school's PA system? This nifty interface from RapcoHorizon converts the audio output from your laptop (or other consumer electronics device) to a mic level balanced signal that you can plug into your mixer. It's small enough to fit in your pocket, and the rugged aluminum chassis and hand-soldered connections ensure long-term reliability. The LTIBLOX Interface also keeps things admirably simple by giving you one knob for total volume control.

The 3.5mm male input accepts the signal from most laptops, MP3 players, and portable CD players, while the XLR male output connects to your mixer. Warranty: limited lifetime.

RapcoHorizon LTIBLOX Interface Reviews

Average Customer Review:

1 Review


Written by: JHTeachnArt from Ohio on November 19, 2015

I asked the computer guy at school if he had an adapter from male mini to either male XLR or 1/4" and he said I have just what you need. Small but substantial, not a lightweight piece, the LTIBLOX has made running sound effects for our Fall Play so much easier. The rheostat on the interface allows my Sound Op. to fade a cue without needing to change the preset on the mixer.

Pros: Easily portable, substantial heft for durability, good sized volume adjustment knob

Cons: The only thing I could think of that would make this product better would be to include markings for volume levels on the unit.

Hands-on research

What's in the box?

Download owner's manual

  • Laptop interface (w/ attached 23" cable)

Product Research


Laptop Interface: The Rapcohorizon LTIBLOX is a consumer to pro laptop interface device. It converts input from consumer grade equipment (laptop computers, MP3 players, CD players) to a mic level balanced output of a professional mixer console. The interface's input consists of an attached 23" cable terminated by a male 3.5mm connector, while the output is a male XLR plug. It also gives you volume control through its rotary potentiometer of the outgoing stereo signal. The LTIBLOX features a black powder-coated aluminum chassis that is compact enough to fit in a shirt pocket.

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