ART CLEANBoxPro Dual-Channel Balanced/Unbalanced Level Converter

Plugging consumer gear into a pro audio setup? Convert an RCA or 1/8" stereo source to balanced XLR -- and vice versa -- with ART's noise-free adapter box.

The CLEANBoxPro provides two channels of unbalanced to balanced level conversion and two channels of balanced to unbalanced level conversion in a rugged, compact, and portable unit. Balanced lines offer increased immunity to external electrical noise, such as hum. Since a balanced system minimizes induced noise, it is the preferred method of connecting audio gear, especially when long lengths of cable are used. One section of the CLEANBoxPro converts two channels of consumer-level unbalanced input signals into two channels of pro line-level balanced output signals. It has two RCA jack inputs and a stereo mini-phone jack input connected in parallel. The balanced output feeds two XLR male jacks.

The other section of the CLEANBoxPro converts two channels of line-level balanced input signals into two channels of consumer unbalanced output signals. It has two XLR female input jacks. The unbalanced output feeds two RCA jacks and a stereo mini-phone jack connected in parallel. Each section has stereo level controls to optimize signal levels. An LED indicator lights when power is applied.

CLEANBoxPro Applications:

- Home or professional recording studios
- Live sound, PA, and permanent installs
- DJ, AV, and consumer HiFi
- Podcasting and broadcasting
- The CLEANBoxPro can be used with mixers, audio processors, laptop computers, computer sound cards, CD/DVD players, video gaming machines, MP3 player/recorders, powered monitors and digital audio workstations

- Frequency Response: 20Hz to 20kHz, +/-1 dB
- Total Harmonic Distortion: <0.1% @ 1 kHz
- Signal to Noise Ratio: > 90 dB
- Input Impedance:
Balanced: 20k O
Unbalanced: 100 O
- Maximum Gain:
Balanced to Unbalanced: -6 dB
Unbalanced to Balanced: +21 dB
- Maximum Input Level: +21 dBu
- Maximum Output Level:
Balanced: +21dBu
Unbalanced: +15dBu
- Output Impedance:
Balanced: 100 O
Unbalanced: 300 O
- Power Requirements: 7.5-12 V AC/DC, <150 mA
- Dimensions: 1.85H x 4.6W x 4.3D (47mm x 117mm x 109mm)
- Weight: 1.10 lbs (0.50 kg)
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 1.25 lbs
Shipping Dimensions: 10 x 5 x 3 in
Manufacturer Part Number (MPN): CLEANBOXPRO

For support or warranty questions, please contact the manufacturer:
Phone: 585-436-2720


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