Radial Engineering STAGEDIRECT User Manual - page 13
Radial Engineering Ltd.
StageDirect™ Active Direct Box
True to the Music
®
Audio circuit type: .................Active Buffer with class-A FET front end
Frequency response: ................................................... 20Hz ~ 20kHz
Total harmonic distortion: ........................................................<0.01%
Dynamic range: ........................................................................ 100dB
Instrument input impedance: ............................................ 250k Ohms
Maximum input: ...................................................................... +13dBu
XLR output impedance: ...................................................... 250 Ohms
Equivalent input noise: ............................................................ -87dBu
Intermodulation distortion: ........................................................0.012%
DI out phase deviation: ....................................................... 8° at 50Hz
XLR confi guration: ............................ Pin 1 ground, Pin 2 (+), Pin 3 (-)
Remote switch:........................ Momentary (pulse) ¼” contact closure
Power: ............... 48V phantom power or 15V external power adapter
Construction: ..........................14 gauge steel chassis and outer shell
Finish:............................................................................Baked enamel
Warranty: ...................................................Radial 3-year, transferable
*Specifi cations are subject to change without notice.
SPECIFICATIONS*
BLOCK DIAGRAM
UNITY
GAIN
BUFFER
PHASE
INVERTING
BUFFER
PHANTOM POWER IN
AMP OUT
PHASE
BAL. OUT
PHASE
TRANSFORMER
ISOLATION
180° (INVERTED)
0° (NORMAL)
180° (INVERTED)
0° (NORMAL)
GROUND
LIFT
LAT
UNBAL. ISOLATED
AMP OUTPUT
BAL. OUT
PAD
CLASS A
FET
BUFFER
MUTE
FOOT
SWITCH
TUNER
OUT
LOW CUT
FILTER
0dB
-10dB
FLAT
INPUT
REMOTE
FOOTSWITCH
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