BUILD AND FEATURES
This 10.5 pound piece is a beast of a unit made out of formed sheet steel. The front panel is a double layer of steel and cast aluminum. I’ll be mounting mine without fear of rack ears bending. I’m a big fan of all the metering (love the combo of swinging-needle VU meter and peak reading meter). The signal path switching options (lighted buttons) and straightforward controls are a blessing for a complex unit like this one. It includes variable mic impedance, a 100 Hz low-cut filter, polarity invert, +48V phantom power, and the ability to place the EQ before or after the dynamics section. The designers of this ART have clearly been looking at features that engineers like.
DIGITAL OUTPUTS & MONITORING
There is no internal headphone amplifier included. For a piece that includes all this inbuilt signal processing - plus a variety of direct to digital outputs - it would be nice if they gave you a way to hear what you’re sending out those digital holes.
Digital connectivity covers USB, ADAT, S/PDIF, AES/EBU, and word clock—handy for direct computer integration. I have not yet done a deep dive into these digital output features due to latency (I can’t work hearing echo in my headphones).
I will be using the ART Voice Channel - analog balanced, audio output - with the converters I already own - due to latency monitoring issues when the ART digital options are involved. I have not figured out a good setup to use the ART digital connectivity options without extra hardware and/or monitoring latency.
PREAMP STAGE
The signal path does not include any audio transformers, all the input and output connections are active balanced circuits. The “Class A” mic preamp section provides a maximum of only 60 dB of gain according to the specs (I had it maxed out when using a couple of my favorite ribbon microphones). The tube stage uses a 12AX7A (stock tube is a basic no label “China” type). A switch on the front panel selects from two plate voltages: lower plate voltage for added harmonics/warmth or higher for cleaner headroom. The user guide says it takes 20 seconds for the plate voltage to ramp up to the higher level when engaged (this slow ramp effect makes it difficult to A-B compare directly and accurately assess the sonic impact of the two different tube voltages).
PERFORMANCE NOTES
The dynamics section performs adequately for most tasks. The expander/gate works well for controlling noise in less-than-ideal environments, such as a kitchen-based home studio. The compressor and de-esser are musical and straightforward, though not the most transparent.
The four-band semi-parametric EQ offers reasonable flexibility (+/-12 dB per band claimed) but is not particularly surgical, precise or good sounding. The sweepable upper midrange control sounded a bit like a wah-wah pedal as you sweep the frequency control. The high frequency EQ control has two switchable ranges, I did not care for the way either of them sounded (5k when engaged sounded like it dulled higher frequencies - 15k range seemed brash and unattractive). Fortunately it is easy to pushbutton-bypass the tone controls completely. No adjustments provided gave me the sparkle my ears were constantly searching for when using the ART Voice Channel.
Mic preamp behavior varies with source:
- With lower-output passive ribbon microphones, the 60 dB maximum gain often required cranking the gain knob UP, which can push the tube stage noticeably adding distortion and noise.
- With brighter, lower-priced condenser mics (e.g., certain AT and MXL models), using the ART Voice Channel imparts a pleasant shaping to the extreme high frequencies.
The stock vacuum tube is functional but obviously inexpensive. We’re already making plans to test higher-quality 12AX7 replacements and assess more thoroughly the impact of the two available plate voltages. This review will get updated if tube rolling improves the tone noticeably. The tube that came in the unit seems noisy and overall does not benefit the tone in a positive manner.
OVERALL IMPRESSIONS
The ART Voice Channel packs a lot of features into a single unit at a competitive price point (new units typically land in the $600–$700 range). It serves as a capable microphone preamp with integrated signal processing and digital output—convenient when you don’t have a lot of room in your studio for individual components.
PREAMP INSERT POINTS
On the rear is a Combo XLR/TRS mic/instrument input jack. Next to that is an unbalanced Tip/Sleeve 1/4” preamp output jack which allows the mic preamp signal to come out for processing by something with unbalanced input and output connections and then returned to the Voice Channel signal path on the adjacent Tip/Sleeve “Insert Input”.
A/D CONVERTER INSERT POINTS
TRS insert jacks are provided before signal is delivered to the A to D converter section. These insert points on the rear of the Voice Channel are unbalanced TRS style with output on the Ring and input on the Tip. (Personally I detest TRS inserts but they’re better than nothing ;-).
The unbalanced outputs are spec’d in the manual at +20 dBu maximum signal level which is WAY too hot for use with most unbalanced stomp boxes. All these unbalanced insert points are nice but I’m wondering what processing device(s) they’re intending for us to use since almost everything in my current studio has balanced input/output connections.
The problem with unbalanced-connections is they rely on electrical ground as one of the audio legs which all too often leads to ground-loops with increased hum and noise in my experience. If the external processor (you want to insert) has balanced input/output connections then you can make special cables to allow the ART unbalanced inserts to function without additional noise but this solution leaves you storing and keeping track of external cable/adaptors.
DIY FADER INSERT?
Being the hardware guy I am, this application struck me as I looked for good ways to use the unbalanced Voice Channel preamp insert points; a motivated DIY-type person could use those unbalanced insert points to patch a nice ‘slide-fader’ or even a rotary pot in an external box and use it as a hands-on volume control or mute.
IN THE STUDIO
If you’ve read along this far you might think my impression of this preamp is not that great (and you’d be right). The actual preamp stage is lackluster relying on a lot of marketing speak and feature creep without excelling at anything.
In 2026 studio users need an exceptional microphone preamp stage to bring out all the character of whatever mic they are using. After the mic preamp stage, all the hardware-processing features of the ART voice channel are available as plugins in virtually every DAW (allowing processing decisions to be made at any time in production). The problem with recording processed-signals means you’re stuck with it on your track forever and it can never be changed or removed without rerecording the track.
I’m not afraid to commit to a sound but if I’m uncertain of the processing then I like flexibility. I’m experienced enough to know when I’m recording magic (or when other options might offer more flexibility without poisoning my track forever).
BROADCAST APPLICATION
I have not worked in a radio station since the mid 1980s (except Mark King Radio and I call the shots there ;-). The ART Voice Channel might be a good processor for an announcer or some other public speaker who needs a fully processed microphone signal in a live application. The engineer-operator who tweaks this box needs to be very familiar with the Voice Channel controls in order to react quickly like live situations often demand. The vacuum tube preamp stage becomes a liability in a 24/7 always-on radio station application.
EPILOGUE
Without inbuilt latency-free monitoring options I’m left feeling the digital connectivity on this piece is useless for my music recording applications. The ART Voice Channel is basically a microphone preamp with a built-in tube distortion generator and a lot of signal processing thrown in (but is it processing you really want?).
INEXPENSIVE MICROPHONES REJOICE
After using the Voice Channel and exploring all the tone shaping options I’m left feeling like it imparts a dulling effect to sounds passed through it. This same dulling effect is what makes overly bright condenser microphones sound a little better than a full range 1073-style preamp. If you’re using a lower priced condenser mic this ART tube preamp could be a good choice for you (I’m specifically thinking of lower priced Audio Technica or MXL condenser models) - make sure you can return the preamp if you don’t like it.
VALUE QUESTION
There is a lot of competition in the $600+ price area. I got a super good deal on the one in this review. Knowing what I know now about its tone and performance I'd look for something different. I’d be more inclined to use this preamp in a live situation rather than studio recording. For live use it offers lots of hands on control for tightening up the sound from a person speaking using a microphone. By far this is the strongest application I could find for the ART Voice Channel.
LIVE INSTRUMENT APPLICATION
As an instrument preamp the Voice Channel falls short for my needs, imparting a sort of darkened overall tone that makes tracks fade into the background rather than stepping forward. I might like it as an instrument preamp for live use but the control layout seems complicated for quick live navigation by a performer.
This ART Voice Channel has a lot of features but at the end of the day a microphone preamp for studio work is about plugging in a mic and delivering exceptional sound. The sonic output from this box is just not the full, bright, clear tone I like.
There are a lot of positive reviews out there so if this piece works for you, rock on!
Thanks for reading High on Technology, Good Music To You!
©May 2026 by Mark King, it is NOT ok to copy or quote without written permission from the author.
ADDENDUM-1: Who is ART Pro Audio? Quick backstory:
- Founded in 1984, in Rochester, New York by a crew of engineers who previously worked at the legendary pedal company MXR.
- ART Started out making digital reverbs for the recording market.
- In 1999, they joined the Yorkville Sound family (a Canadian company), and today product development is based near Toronto.
- Long & McQuade (often called L&M) owns ART and is Canada's biggest musical instrument retail chain. They founded it back in 1956.
- In 1963, Jack Long (one of the founders) started Yorkville Sound in the back of an L&M store. Yorkville became their manufacturing arm (amps, speakers, etc.).
- In 1999, Yorkville Sound bought ART (Applied Research and Technology).
- Today, Yorkville Inc. and ART are fully owned subsidiaries of Long & McQuade Limited. The Long family still owns everything privately.
- So the chain goes: Long & McQuade (retail) → owns Yorkville Sound → owns ART Pro Audio.
Originally published June 1 2026
