¼" Instrument Jacks; Rca & 3.5Mm Jacks; -15Db Pad; Transformer Isolation - Radial Engineering ProAV2 User Manual

¼" INSTRUMENT JACKS
Stereo devices like keyboards and drum machines connect to the left and right
¼" jacks. Mono musical instruments may be connected to one channel using
either ¼" input and the like XLR ouput.
¼" Left
Stereo
¼" Right
RCA & 3.5mm JACKS
Stereo consumer electronics like CD and MP3 players connect directly to the
ProAV2 without cumbersome adaptors using the stereo RCA and 3.5mm jacks.
RCA Left & Right
Stereo
3.5mm Left & Right

-15dB PAD

The ProAV2 is equipped with a -15dB input PAD to prevent overload distortion
when interfacing high output devices like CD players. The PAD reduces the
input level going to the left and right transformers.

TRANSFORMER ISOLATION

The ProAV2 transformers convert the hi-Z inputs to balanced, low-Z, mic-level
outputs. A major benefi t of using transformers for signal conversion is the
isolation the transformer provides. Transformer isolation eff ectively blocks hum
and buzz caused by ground loops by preventing the fl ow of stray DC current
between the input ground and output ground.
Radial transformers are custom manufactured for optimum signal transfer,
minimal insertion loss and fl at frequency response. They are exceptional
for their ability to handle high input levels with very low harmonic and phase
distortion. To make the ProAV2 as quiet as possible, we sealed the transformer
inside a can made of mu-metal. Mu-metal is known for its ability to block
electromagnetic interference.
Radial Engineering Ltd. ProAV2 User Guide