Buy ART DTI Hum EliminatorART DTI Hum Eliminator Product Description:
- Reduces hum and ground loop noise
- Flat and wide frequency response
- Handles high signal levels
- Maintains isolated balanced output
- Clean and neutral sound
Product Description
Okay, you've heard it. We've all heard it. That nasty, annoying hummmmmmmmmmmm that infects your sound and you can't get rid of it. Chances are, you've got a ground loop plaguing your otherwise-awesome tone. How do you kill the ground loop noise? You grab ART's affordable DTI. DTI stands for "Dual Transformer Isolator," but that's just wise-guy talk for HUM ELIMINATOR. With ¼", XLR, and RCA I/O, you won't have to deal with adapters to get this baby hooked into your setup. And there's no real need to get into the nitty gritty of how it works or why it does what it does. All you need to know is that when you can't afford to chance it with hum issues — live sound, PA, DJ, install.. whatever — you want to have one of these black anodized guys ready to go. Get the DTI — you won't regret it!!
Customer Reviews
Most helpful customer reviews
4 of 4 people found the following review helpful.
TRANSFORMER SAVIOR
By Mark King
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.
2 of 2 people found the following review helpful.It's a miracle worker...
By DVDbean
After months of struggling with buzzing from two of my powered monitors, I finally decided to try the ART DTI and it has worked perfectly.I have an "active" 7.1 surround system with XLR connectors on each speaker, but unbalanced RCA outputs from the surround processor. 5 of the 7 speakers were fine, but the two surround-back channels had a consistent, loud buzz. After too much time trying everything I could think of to find common ground (including stringing extension cables all over the room to the different outlets), I finally ordered the DTI. Once in place, the buzz was gone, and the speakers sound as good as ever (I can't detect any degradation in the sound).The box itself is extremely high quality (metal, not plastic), and the jacks all appear to be high quality. It's a passive unit; no batteries or external power is required.All in all, I've very impressed.
2 of 3 people found the following review helpful.Finally a product that works!
By Terry Tilson
I had my doubts but once this is plugged it it worked wonderfully to create recordings that are Hum Free! I highly recommend it to all.
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