Korena
Product detailSKU #1274034477465

Rapco HorizonDBBLOXF Lo to Hi Z Transformer Direct Box

Rapco Horizon
Rapco Horizon DBBLOXF Lo to Hi Z Transformer Direct Box

Independent shopping perspective

The Korena take

A passive transformer direct box that converts a low-impedance signal to high impedance, for feeding gear that expects an instrument-level input.

Rapco Horizon DBBLOXF Lo to Hi Z Transformer Direct Box product detail
Product studyRapco Horizon DBBLOXF Lo to Hi Z Transformer Direct Box

Strong match

Who this is for

  • Driving a guitar amp input from a low-impedance line or console send
  • Reamping-style setups where the destination expects a high-impedance source
  • A cheap fix for impedance mismatch buzz between two pieces of gear

Consider the trade-offs

When to look elsewhere

  • The usual guitar-to-mixer job, which needs the opposite conversion
  • Anyone wanting gain — a transformer passes signal, it does not amplify
  • Setups already matched in impedance, where it adds nothing

What matters in use

The specifications, translated

Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01

Lo to Hi Z

Runs the opposite direction to a standard DI, taking a low-impedance feed and presenting it as high impedance.

Detail 02

Transformer-based

The conversion happens in a coil of wire, so there is no circuitry adding noise or coloration.

Detail 03

Direct box format

A small metal enclosure that sits on the floor or in a rack rather than a loose barrel adapter.

Detail 04

Passive design

Expect a small level drop across the transformer; make it up at the destination's gain stage.

Detail 05

Price point

Costs less than most utility cables, which makes it easy to keep one in the toolbox.

Final check

Know before you order

  1. 01Cables are not included; you need one for each side
  2. 02Check which direction you actually need — most guitar jobs want hi-to-lo
  3. 03A passive box cannot fix a signal that is too quiet to begin with

Product questions

Before you decide

Straight answers to the questions shoppers most often ask about this product.

01Can I use this to plug my guitar into a mixer?

That job needs high-to-low conversion. This box goes the other way, taking a low-impedance signal and presenting it as high impedance to the next device.

02Does it need power or a battery?

No. The conversion is done by a transformer, so there is nothing to power and nothing to run flat mid-set.

03Will it boost my signal?

No. A transformer only changes impedance, and a passive one usually costs you a little level. Add gain at the device you are feeding.

04What would I actually use this for?

Sending a low-impedance output, such as a console or interface send, into something that expects an instrument-level high-impedance input, like a guitar amp.

Worth comparing

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