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ART DTI - Dual Input Inline Transformer/Isolator Box with Balanced and Unbalanced Connectors

ART DTI - Dual Input Inline Transformer/Isolator Box with Balanced and Unbalanced Connectors
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ART DTI Overview

  • 1Description
  • 2Versatility
  • 3Connectivity
  • 4Construction

The DTI (Dual Transformer/Isolater) from ART is a high quality, totally passive audio interface that uses a pair of high performance transformers to totally separate input and output signal grounds, thereby isolating two systems and reducing hum and ground-loop noise.

The unit's audio transformers have an extremely flat and wide frequency response and can handle high signal levels while maintaining an isolated balanced output. This gives the DTI a very clean and neutral sound with a wide variety of signal sources. The transformers are wound for 1:1 unity gain and are designed to be used with impedances from 600 Ω to 100k Ω.


Useful for making a "clean" interface between a computer based audio workstation and a speaker system, isolation on long cable runs in a fixed installation, isolation of a signal source from any recording equipment, or in many cases, just a safer connection between two audio systems.


Provides XLR, 1/4" phone and RCA type phono connections on all inputs and outputs. This allows the unit to easily fit into virtually any audio system and be the clean patch point between all types of systems.


A compact black anodized, all aluminum case and passive design allow the DTI to provide years of trouble free service in Live Sound, Permanent/Fixed Install, D.J. and virtually any PA application.
UPC: 840402016380


Inputs2 x XLR
2 x 1/4" TS phone
2 x RCA phono
Outputs2 x XLR
2 x 1/4" TS phone
2 x RCA phono
Frequency Response10Hz to 50kHz, +/-0.5dB @ +4dBu
Dimensions4 1/4" x 3 1/2" x 1 3/4"
Weight0.75 lbs
SpecialtiesPassive design
Packaging Info
Package Weight0.9 lb
Box Dimensions (LxWxH)6.45 x 5 x 2.8"

ART DTI Reviews

Passive Not Active

By Ann
Rated 1 out of 5
Date: 2020-07-22

With no power, this box can't reduce ground level noise like the CLEAN Pro.

Just what I needed

By Olddutch
Rated 4 out of 5
Date: 2011-02-07

I use this between the audio signal from the sound board to the audio input of a video camera. Before using this I had a hum when I was plugged into the wall outlet and not using battery. Once in place the hum has dissipated and I now have clear audio on my recordings.

Not good enough for professional audio!

By Eric Visa
Rated 1 out of 5
Date: 2010-02-23

I give it one star for form-factor. Otherwise it fails in the MOST important aspect of all: SOUND QUALITY. Not much humm/buzz reduction in my experience. You 're better off with the EBTECH Hum Eliminator (which costs a little more). But you WILL get what you pay for!

Great !!

By Andres Schmidt
Rated 5 out of 5
Date: 2009-08-19

I use it to avoid ground isolation problems in my Mac G4. It works really good.

Has RCA inputs

By Lefty
Rated 5 out of 5
Date: 2015-12-06

The DTI box has the RCA inputs I needed for running a unbalanced subwoofer out RCA jack to the balanced XLR input jack on my Crown CE 1000 subwoofer amp. The Ebtech HE-2-XLR does not have RCA inputs. The hum is gone in my home theater room.

This is awesome!!

By Gabriel
Rated 5 out of 5
Date: 2014-02-19

This eliminates hum noise!!

Low Quality

By Brian in Vegas
Rated 2 out of 5
Date: 2013-08-17

It looks great and it has RCA, but, do not waste your time or money. Spend the extra ten bucks and get the Ebtech HE-2-XLR and buy the converters. Why? Because it does eliminate much of the hum, but adds a squirlly noise on the high end. I bought both this and the Ebtech HE-2-XLR at the same time because there were no good reviews so I thought I would buy both and compare. I returned the DTI and bought another Ebtech. Please don't try and be cheap, spend the few extra dollars and save yourself some time.

Works Great!

By Anonymous
Rated 5 out of 5
Date: 2012-06-13

We use this product to clean up a long unbalanced streaming video feed that has a nasty buzz. Works great!

See any errors on this page? Let us know



I'm thinking of purchasing this unit, but am curious to how you would connect it from your motherboard to PC speakers. I know it has RCA inputs/outputs, and would assume:- Speakers connect to the output?- Motherboard connect to the corresponding input?Only asking, as their website doesn't have an instructional/manual on this...Thanks.
Asked by: Anonymous
You can only use this line level unit with internally powered speakers that connect to the motherboard with line level signals, not speaker level. Usually, this means via the connectors on the unit itself.
Answered by: jim w.
Date published: 2018-08-27

LINE input or MIC input or both ?

LINE input or MIC input or both ?
Asked by: Mauro
Both, but I think only one at a time.
Answered by: Anonymous
Date published: 2019-09-09
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