ART T8 8-channel Hum Eliminator / Isolation Rack

8-channel Transformer/Isolator
ART T8 8-channel Hum Eliminator / Isolation Rack image 1
ART T8 8-channel Hum Eliminator / Isolation Rack image 1
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ART T8 8-channel Hum Eliminator / Isolation Rack
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8-Channels of Isolation!

The T8 (Transformer Eight) is a high quality totally passive audio interface that uses 8 transformers to separate input and output signal grounds, thereby isolating two systems and reducing hum and ground-loop noise. The T8's audio transformers have flat and wide frequency response and handle high signal levels while maintaining an isolated balanced output. This gives the T8 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 Ohms to 100k Ohms.

Connection versatility sets the T8 apart from other isolation boxes. The T8 provides balanced XLR, 1/4" phone, and RCA type phono connections on all inputs and outputs simultaneously. The T8 fits easily into virtually any audio system and is a clean patch point between all types of systems.

The T8s mounting ears are reversible so you can have either the XLRs on the front or The 1/4" and RCA phono jacks on the front. This maximizes flexibility in cabling your system. Whether you need an interface between a computer based audio workstation and your monitor system, isolation on long cable runs in a fixed installation, isolation of multiple signal sources from your recording equipment, or in many cases, just a safer connection between two audio systems, the T8 can accommodate.

The 19" single high, all steel case and its passive design allows the T8 to provide years of trouble free service. Its full feature set, rugged construction, and high-end specifications make the T8 the obvious choice for Live Sound, Permanent/Fixed Install, D.J., and virtually any PA application.

Additional Media

T8 Spec Sheet
T8 User Manual

Tech Specs

Type Signal Isolator/Hum Eliminator
Channels 8
Inputs 8 x XLR, 8 x TRS, 8 x RCA
Outputs 8 x XLR, 8 x TRS, 8 x RCA
Height 1.75"
Depth 3.75"
Width 19"
Weight 3.75 lbs.
Manufacturer Part Number T8

Customer Reviews

Based on 8 reviews
Write your review

Got Rid of the Enemy of Great Sound

Before and after are so different now that this has been put in the rack. It slaughtered the 60 Hz destroyer of music in our PA system.
Music background: Recording Engineer: Sound & Video

Eliminate that HUM

Just running the audio from a DVD player through our ART T8 cleaned up the projector image by eliminating scrolling horizontal lines. This is a great space saver as it only requires a single rack space. This unit allows up to (8) XLR, 1/4" or RCA signals to pass through individual transformers to produce (8) isolated signals. It's a nice unit to have around the sound mixer for audio from video players, CD players, computers, tape decks, musical instruments and other audio devices. It's great we love it.
Music background: Church Sound Tech


Works perfect

Eats USB Noise

Cost effective, lightweight and totally removed the noise induced between the DAW and external USB-connected devices. Would be nice to see a common ground bus, but it's easily enough created through the unused connections. Having both 1/4" TRS and XLR outputs helps for live use.

Essential for any studio

The ART T8 transformer/isolator is a real workhorse in my home studio. I have several of these units in applications such as front end isolation for my guitar mixer (A&H "MixWizard"). I have never had a problem with reliability and the fact that the inputs and outputs all include XLR, TRS, and phono connectors makes it very handy for interconnecting all kinds of gear. I would recommend the T8 to anyone working in audio.
Music background: Amature music and recording (over 40 years)
See also: Direct Input Boxes, ART, ART Direct Boxes