Detail 01
+21 dB gain, unbalanced to balanced
Enough lift to bring a weak -10 dBV consumer source up to proper console level instead of pushing a preamp hard.
Product detailSKU #1274228073692
ArtCLEANBoxPro Dual-Channel Level Converter
1/8
Independent shopping perspective
The Korena take
Two-channel level converter that matches balanced +4 dBu gear to unbalanced -10 dBV gear in both directions. For fixing hum and level mismatch between studio and consumer equipment.
Strong match
Who this is for
- Connecting a mixer's balanced outs to consumer powered speakers
- Sending a laptop or phone output into a balanced console
- Killing ground hum between gear on separate circuits
Consider the trade-offs
When to look elsewhere
- Anyone needing to plug a mic straight into a preamp
- Players wanting an instrument DI with a speaker-level pad
- Racks where a passive, power-free box is required
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
-6 dB, balanced to unbalanced
Pads hot pro-level output down so consumer inputs don't distort. This is the direction most people get wrong.
Detail 03
>40 dB common mode rejection
The balanced side cancels noise picked up along the cable, which is what removes hum on long runs.
Detail 04
20 kΩ balanced / 100 kΩ unbalanced input impedance
High enough not to load down whatever feeds it, so tone and level stay the same as the source.
Detail 05
20 Hz–20 kHz ±1 dB
Flat across the audible band. It changes level, not tone.
Detail 06
7.5–12 V AC/DC power
Active box — it must be powered to pass audio. It won't work inline as a passive adapter.
Final check
Know before you order
- 01Needs external power; confirm a supply and an outlet at the rack.
- 02Two channels means one stereo pair, not two stereo pairs.
- 03Check your connector types before ordering cables to match both sides.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Will this fix hum between my mixer and powered speakers?
Usually yes. The balanced side's common mode rejection cancels noise induced on the cable run, and it's rated over 40 dB.
02Can I use it as a DI for guitar?
It's a line-level converter, not an instrument DI. Its inputs expect line signals, not a pickup.
03Does it need power?
Yes. It takes 7.5–12 V AC or DC and passes no audio unpowered.
04Can it convert both directions at once?
It handles balanced-to-unbalanced and unbalanced-to-balanced, so you can set the two channels up for opposite directions if your cabling allows.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsSound
- Input impedance
- Balanced - 20kÎ, Unbalanced - 100kÎ
- Output impedance
- Balanced: 100Î,Unbalanced: 300Î
2 detailsConnections & power
- Maximum input level
- +21dBu
- Maximum output level
- Balanced: +21dBu, Unbalanced: +15dBu
10 detailsOther
- Category Source
- detail
- Korena Special
- false
- Weight
- 1.10lb. / 0.50kg
- Common mode rejection ratio
- >40dB
- Tier
- new
- Frequency response
- 20Hz - 20kHz, ±1dB
- Source Id
- site51274228073692
- Maximum gain
- Balanced to Unbalanced: -6dB, Unbalanced to Balanced: +21dB
- Power
- 7.5-12 V AC/DC, Dimensions (DxWxH): 1.85" x 4.6" x 4.3", 47mm x 117mm x 109mm
- Total Harmonic Distortion
- Signal-to-Noise Ratio: >90dB
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