RCI cutsheet 440.dmok FINAL
440
Pro Audio Adapter
www.rcicustom.com
440308-1
FEATURES
• 20 to 20K response (+ 4db)
• Adjustable gain
• Preset attenuators
• Internal power supply
•
•
•
•
•
Rack mountable using RM-140 kit
Low noise and distortion
+4 or +8dBm balanced outputs
Compact half rack size, 1RU tall
Made in USA
The RCI Custom Products 440 Pro Adapter is a two channel variable matching amplifier, designed to
permit the interface of semi-professional (consumer) audio equipment and professional audio devices.
This remarkably “quiet” unit is well suited for studio, broadcast or live production applications. Unit can
convert unbalanced output signal from consumer type equipment (CD, MP3, DVD players) to balanced
signal input for professional grade gear. Comprised of two amplifier sections and two attenuator sections,
the Model 440 is designed to boost low level signal (-20 to +3dB) to balanced +4dBM level. Rear panel
trim controls allow the user to vary the gain up to +8dBm in order to meet broadcast industry standards.
Additionally, the amplifiers provide an impedance matching characteristic necessary to avoid overloading
the -10dB equipment. The 440 also allows for reversal of the process, converting balanced signal to
unbalanced signal.
Connections include RCA input jacks to barrier strip outputs on the amplifier side. Attenuator side uses
barrier strip inputs to RCA outputs. Model 440 X provides RCA input jacks to male XLR outputs on the
amplifier side and female XLR inputs to RCA outputs on the attenuator side.
Units may be rack mounted individually or in pairs side by side in the half rack configuration using the
optional RM-140 rack mount kit.
801 North East Street • Frederick, MD 21701 • 301-620-9130 • 800-546-4724 • FAX 301-620-9103
440
Pro Audio Adapter
www.rcicustom.com
440308-1
SPECIFICATIONS:
Amplifier Section
Input:
Output:
Response:
THD:
Slew Rate:
Separation:
Noise:
Clipping:
30k ohm, unbalanced
85 ohms, transformer balanced
20 to 20 kHz, .01% mid-band
0.1%, 30Hz to 20 kHz, 65db @ 10 kHz
13V per microsecond
Better than 85db @ 1 kHz, 65db @ 10
kHz
76db below +4dBm
+25dBm into 600 ohm
Attenuator Section
Input:
Output:
Attenuation:
50k ohms bridging
3k ohm
24 db
Physical
Power:
Weight:
Finish:
Options:
115 VAC, 60Hz, 10 watts
3 lbs. (2.2kg)
Black anodized chassis
RM-140, rack mount adapter
A & E SPECIFICATIONS
The professional equipment interface unit shall be RCI Custom Products Pro Adapter Model 440 , two
channel amplifier/attenuator system for the interface of semi-professional audio equipment to professional
equipment, is comprised of two amplifier sections and two attenuator sections and shall feature
adjustable gain, preset attenuators and internal power supply all within a half-rack format. The amplifier
section shall consist of two (2) channels with input phono jacks for -10dBv @ 30k ohms with variable gain
through a trim control and two (2) output screw terminals at +4dBv @ 85k ohms and shall provide at least
85dB separation between channels @ 1kHz and at least 65dB @ 10kHz. The attenuator section shall
consist of two (2) channels with input screw terminals for +4dBv @50k ohms and two (2) output phono
jacks at -10dB @ 3k ohms and shall provide at least 85dB separation between channels @ 1 kHz and at
least 65dB @ 10 kHz. Frequency response shall be 20Hz to 20 kHz +/- .25dBm, with THD of not more
tham.1% @30Hz to 20 kHz and .01% @ midband. Noise shall be less than 76dB below +4dBm. Slew
rate shall be not less than 13 volts per microsecond and clipping shall be +25dBm into 600 ohms. The
unit shall be 44mm H x 216mm W x 147mm D (1-3/4”x 8-1/2”x 5-3/4”) and weigh not more than 2.2kg. (3
lbs.), have a black anodized finish on an aluminum chassis and allow rack mounting through the use of
an RCI Custom Products Model RM140 rack mount adapter.
801 North East Street • Frederick, MD 21701 • 301-620-9130 • 800-546-4724 • FAX 301-620-9103
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