Rupert Neve 517 - 500 series DI/Pre/Comp - Manual (Page 9)

9
your own judgment.
BLEND
Combines the Mic and DI signals on the DI / Blend Output.
+48V
Back panel switch makes phantom power available at the microphone input.
POLARITY
Push button inverts the polarity of the signal path. The symbol “Ø” is often used to denote opposite
polarity.
VARIPHASE
The VARPHASE control rotates the phase incrementally, allowing two signals with the same source to
be phase aligned. This control is most apparent when the signals being combined are at roughly equal
levels.
INDICATORS
Indicators on the 517 denote signal presence and clipping on both DI and mic signals, as well as
compressor activation.
INTERNAL JUMPERS
Two internal jumpers in the 517 can be set to change the compressor time constants and the engage the
HPF.
HIGH PASS FILTER
The high pass filter is a valuable aid in any signal chain but particularly so in a microphone preamplifier.
Signals below 80hz can be attenuated at a rate of 12db / octave, getting rid of building rumble, air
handling motor hum etc.
INTERNAL JUMPERS
The compressor ships set to the fast time constant. To change the compressor time constant to slow,
move the J1 jumper found under the top lid at the back of the unit, to the slow position.
To engage the high pass filter, switch the J3 jumper position, found under the top lid at the back of the
unit, to HPF in.
SPECIFICATIONS
Frequency Response:
Mic Pre
Main Output, no load,
-0.1dB @ 10Hz, -1 dB @ 120kHz
DI Input
Main Output, no load,
-0.1dB @ 10Hz, -1 dB @ 120kHz
Noise:
Measured at Main Output, unweighted, 22Hz-22kHz,
Terminated 150 Ohms.