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Thank you for selecting the U.S. Audio Presspower 2 audio 

press  feed  distribution  box.  The  Presspower  2  delivers 
broadcast quality audio from 16 mic or line level transformer 
isolated outputs. Features include a 20 segment led VU display 
for quick visual level setting, a headphone monitoring section, a 
tone oscillator for level calibration and a fail safe AC/DC battery 
power supply for uninterrupted operation and portable use. 
There are two balanced mic or line level inputs and an optional 
expander unit, the Presspower 2 Expander is available with 16 
additional mic or line level outputs. The Presspower 2 is a four 
rack space unit and comes with a padded nylon carrying case for 
portability.

INTRODUCTION

SPECIFICATIONS

Frequency Response

      

Input Impedance

      Mic mode       
      Line mode

Maximum Input Level

      Mic mode
      Line mode

Output Impedance

      Mic mode
      Line mode

Maximum Output Level
      

Mic mode

      Line mode
      

T.H.D.

    

Phase Shift

Intermodulation Distortion

Range of Level Pot

CMR of Mic Input at 60 Hz

CMR of Line Input at 60 Hz

Range of Headphone Volume Control

Isolation between Mic Outputs

Isolation between Line Outputs

Power draw
     

 AC mode

      
      Battery mode 
      (All measurements using Mic input driving all outputs)

      On with no Led Meter no Headphones
      On with Led Meter in Dot mode no Headphones
      On with no Led Meter and 30 ohm Headphones
      On with Led Meter in Dot mode and 30 ohm Headphones

Size (in Case)

Weight

      Rack Unit with no Case
      Rack Unit with Case
      Shipping Weight Unit in Case

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

-.5 dBm 20 Hz to -2 dBm at 16 kHz

1.5 k ohms
200 k ohms

-5 dBm mic mode
+23 dBm line mode

150 ohms
150 ohms

-5 dBm into 2 k ohms
+23 dBm into 2 k ohms

.075% at 1 kHz at unity gain mic mode

-6 degrees at 1 kHz unity gain

.04% at unity gain mic mode

-60 to +20 dBm

>75 dBm at 60 Hz

>50 dBm

-60 to +20 dBm

>95 dBm

>60 dBm

31 watts maximum

mA DC     battery life

40             15 hours
73               9 hours
60             10 hours
94               5 hours

20 X 9.5 X 8.5 inches

12 lbs
17 lbs
20 lbs

99 Ling Road
Rochester, NY 14612
Phone 585 663-8820 . Fax 585 865-8930
Email: [email protected]
http://whirlwindusa.com

U.S.Audio

2

U.S. Audio has made every effort to ensure that your 

equipment is received in the same perfect condition it was in 
when it left the factory. Please inspect your product for any signs 
of damage during shipping and report them to your dealer so 
that a claim can be presented to the shipper. We recommend 
that you save your packaging material for use in the unlikely 
event that you need to return your equipment for service.

UNPACKING

In order to deter users from making unauthorized adjustments to the input 
gain during use, the input gain controls on the PRESSPOWER 2 have 
been changed from knob adjustment to adjustment by screwdriver, coin, 
pocketknife etc.

If knob actuation is desired, remove the black bushings and install the 
included knobs as follows. Carefully pry the edge of the bushings away 
from the front panel and depress the plastic fingers that hold them in place. 
The fingers are located behind the printed areas on the face of the 
bushing. Rotate the control fully counterclockwise, align the knob’s pointer 
with the scale and push it onto the shaft. If repositioning is required, the 
knob insert must be removed separately by grabbing the rectangular top 
with pliers and pulling it off. Reinstall the insert into the knob by aligning the 
ridge of the insert into the knob by aligning the ridge on the insert with the 
groove inside the knob behind the pointer.

INPUT CONTROL KNOB CONVERSION

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