ARTPro Audio Dti Transformer/Isolator

I bought this unit to resolve a ground loop issue which it did perfectly. The unit offers a selection of connectors making it exceptionally versatile - XLR, phono and 1/4inch. It's well-made in an aluminium extrusion housing and the brand is one I have had good results with in the past.

A really handy little isolation box. Use it to isolate for example a computer from a mixing deck, a set up which always seems to result in a ground loop if the computer is mains powered. Another really useful feature is you can go in on phono and out on XLR which saves having to faff about with adapters. Does not seem to affect audible sound quality at all, it probably does a bit but you would need some pretty sensitive test gear to see it.

Its definitely helped with removing hum noise that way bleeding out from my gaming PC AE9-PE soundcard and through my audient nero to studio monitors - thus, making this setup useable unlike before. However, it doesnt remove all of the noise as it can still bleed through at high volumes, but it wont be an issue at normal listening levels - so my problem before is solved.I did also experiment with connecting RCA on the input and TRS on the output to the audient nero; this removed the noise completely, although unfortunately the volume levels dropped off quite a bit and there was some sound colouration in this configuration.Overall good device though which will help if your situation is similar to mine.

Yea it definently clamped down on the interference noize from pc by 95%....it filtered it out enough to work...after a while ya get use to it...great product for ground loops

The previous review I made was intended for another product. This is a great piece of kit, unfortunately it didn't resolve my problem, but it was the speaker that was faulty, not this top range isolater.

The audio equipment and gears were suffering from a mishmashof noisy ground loops due to the USB bus power, causing me a nervous breakdown!This guy does the job as expected with no loss of quality audio. It's like a painkiller!Fast delivery.

Although I didn't buy it from Amazon I wanted to leave a review here for visibility.My setup is a Xonar U7 with RCA to RCA going to M Audio BX5 Carbons, there is a static buzz when I turn up the monitors more than a quarter of the way (I've had to resolve to just using the software volume control, which is meant to give the best quality anyway).I bought this to eliminate the ground loop buzz, it did reduce it a lot, but at the same time it completely degraded the sound quality of the music played through it. I had one speaker hooked up and the other in the normal setup, and used the driver control to play each channel at different volumes, it created a very hollow, tinny sound that was awful.

worked noticably well but didnt eliminate all the noise. Well made product as usual from ART nice design and easy to set up.

This eliminated the ground loop noise from my home theater system that got introduced by adding a pro audio amplifier.Excellent build quality. Highly recommended if you need to eliminate a ground loop problem.

Non fa ovviamente miracoli ma è un ottimo prodotto

Dank dieser kleinen Zauberbox kann ich endlich Musik und Filme ohne lästiges Brummen in den Lautsprechern genießen.Mein Problem war eine Brummschleife zwischen meinem AV-Receiver und der angeschlossenen PA-Endstufe (für die beiden Subwoofer).Nach einigen gescheiterten Versuchen mit neuer Verkabelung und Positionierung der Geräte habe ich den ART DTI bestellt und installiert.Und siehe da... endlich Ruhe.Das Gerät ist bestimmt nicht die Lösung für jedes Brummproblem, aber in meinem Fall funktioniert es perfekt.+Verpackung und Versand waren einwandfrei+Gerät ist klein und wirkt hochwertig verarbeitet+passiver Betrieb

Je possède un home studio et un PC dernière génération.Le bruit du processeur était amplifié dans les moniteurs.J'ai branché en XLR à partir du caisson de basse vers l'ART-DTiJ'ai branché les jacks de l'ART-DTi vers la carte audio externe - M AUDIO 192/14Et plus aucun bruit.TOP

I work in a small studio that creates music content and broadcasts live video shows over the internet. Sometimes we simulcast to three different mediums (two audio-video encoders and one audio-only encoder). The output of our mixer also feeds several headphone amps in the studio. All-in-all it's a big recipe for ground-loop hum, the splits to the video encoders are the biggest culprits, suffice to say it's an engineering nightmare.Our hum and noise problem got very big when we added video to our broadcasts and it seemed like there was no way to get rid of it. We already have a 3-way splitter transformer on the output of our console and there was no way to add another one without degrading the sound. I tried a 1x4 distribution amp but it did not have the isolation to break the ground-loop hum so that was not an improvement, indeed, it was actually a step backwards in some ways.We had a big show coming up and I really wanted to fix the audio but I did not have time to build another transformer isolation box for the inputs to the video encoder so I turned to my friends at Amazon for a solution.To be honest, I did not think this box could possibly work. I normally pay more for one raw audio transformer than this completely assembled two-channel unit. I ordered one and got it in two days as promised. Our studio mixer had one set of unused RCA outputs for hooking up to a stereo recorder. I used these to feed a signal to this little ART box, then I used the RCA outputs from the ART to feed into our video encoder. PROBLEM FIXED.I was stunned at the tone quality the ART produced. We are doing music, it's a full range rock band, deep punchy kick drums, mondo bass guitar, screaming guitar leads, sweet cymbals and amazing harmony on the vocals. We record the show right out of the encoder so we have a reference file of what was broadcast. After the show I listened to the recording and it was very impressive, not only was the hum gone but the whole signal seemed cleaner and better in ways that it should not have been. I don't know whether the HUM had been causing high intermodulation distortion or what, but what I do know is our music that is going out on the internet is sounding like we want it to sound, big, full, rich and hum-free.The variety of input and output connectors on this box allows it to be connected in lots of different ways. We're in the process of moving to a larger studio and I will be adding a few more of these to solve other problems in our personal monitoring system that the performers listen through.I did some tests in my lab to determine the quality of the transformers inside this ART box. To be honest, it does change the frequency response slightly but not in a hugely adverse manner. Bass frequencies below 50 hz are a little more distorted on very loud signals, that is what I could measure in the lab. In the real world nobody is going to hear the slightly degraded sound and everybody is going to appreciate the removal of ground-loop hum.If your hum is caused by some other source this box is not going to get rid of it, it's not a hum canceling or hum removal sort of thing. It removes hum by breaking ground loops, plain and simple. It does that well as far as I can tell and at this price it is a real winner.