The ProAV2 from Radial Engineering is a passive direct box designed for multi-media applications with the audio-video integrator in mind. The unit provides full two-channel stereo functionality and includes 1/4" for instruments and RCA connectors for consumer electronics and computers.

Custom wound transformers are employed that are able to withstand exceptionally hot levels while maintaining linearity from 20Hz to 18.5kHz. The resulting smooth Bessel curve is warm and natural, making the AV2 particularly adept at handling digital sources that can sound harsh.

Transformer isolation adds the benefit of eliminating ground loops that cause audio hum and buzz and video hum bars or snow. The ProAV2 is ideal for events where full stereo operation is required.

FEATURES:

Professional stereo direct box for multimedia applications
Easy to use
Ultra-quiet passive design requires no external power source
Eliminates ground loops that can cause hum and buzz
Handles huge transients without distortion
The 14 gauge steel "bookend design" outer shell creates a protected zone around the connectors and switches
Inner steel enclosure is made extremely rigid with an I-beam profile, eliminating any stress that could torque the PC board and cause solder joint failure
Military-grade double-sided PCB is bolted to steel standoffs for road-tough construction
The neoprene foam foot provides electrical isolation and plenty of friction to stay put

Radial Engineering ProAV2 Specifications:

Input Connections 2 x 1/4" TS phone
2 x RCA phono
Output Connectors 2 x XLR
Controls -15dB Pad
Ground switch
Lift switch
Frequency Response 20Hz to 20kHz, +/-2.5dB
Noise Not specified by manufacturer
Power Passive

Dimensions (WxDxH) 5" x 3 1/4" x 1 7/8" (127 x 83 x 48 mm)
Weight 1.8 lbs (0.82 kg)

Specialties: Lift switch interrupts the ground path for the right channel only. This helps to troubleshoot ground loops when using the ProAV2 with an AC power device like a keyboard