Rolls Bellari RP282 User manual

RP282
DualTube
Compressor/Limiter
OWNERS MANUAL
ROLLS CORPORATION
SALT LAKE CITY, UTAH
7/99
Channel
One
Channel
Two
ACTIVE
OUTPUT LEVEL THRESHOLD RATIO ATTACK RELEASE
ACTIVE
-
OO 0 -25 dB +10 .5 ms 100 100 ms
5
-25 dB +10 .5 ms 100 100 ms
5
2:1 OO:1
2:1 OO:1
-
OO 0
4:1 5:1
4:1 5:1
20 10 5
3
036
@ *
+4 REF
OUTPUT
GAIN
REDUCTION
RELEASE
METER
0
ms 500
0
ms 500
METER
CHANNEL ONE CHANNEL TWO
Dual Tube Compressor/Limiter
RP282a
STEREO
LINK
20 10 5
3
036
@ *

TABLE OF CONTENTS
Introduction 1
Inspection
Front Panel Description 2
Rear Panel Description 3
Specifications 3
Operation 4
Warranty 5
5
LIMITED WARRANTY
This product is warranted to the original consumer purchaser to be free
from defects in materials and workmanship under normal installation, use and
service for a period of one (1) year from the date of purchase as shown on the
purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be limited
to repair or replacement (at our option), during the warranty period of any part
which proves defective in material or workmanship under normal installation,
use and service, provided the product is returned to Rolls Corporation, TRANS-
PORTATION CHARGES PREPAID. Products returned to us or to an authorized
Service Center must be accompanied by a copy of the purchase receipt. In the
absence of such purchase receipt, the warranty period shall be one (1) year from
the date of manufacture.
This warranty shall be invalid if the product is damaged as a result of
defacement, misuse, abuse, neglect, accident, destruction or alteration of the
serial number, improper electrical voltages or currents, repair, alteration or
maintenance by any person or party other than our own service facility or an
authorized Service Center, or any use violative of instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties, obligations
or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILI-
TIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF
THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations
on how long an implied warranty lasts, so the above limitation may not apply to
you.
IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCI-
DENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR
ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER.
Some states do not allow the exclusion or limitation of special, incidental or
consequential damages so the above limitation or exclusion may not apply to
you. This warranty gives you specific legal rights, and you may also have other
rights which vary from state to state.

14
INTRODUCTION
Congratulations and thank you for purchasing the Bellari RP282 DualTube
Compressor/Limiter.We recommend that you take a moment and read this
manual as it provides information that will help you in using your unit to its fullest
potential.The RP282 provides smooth, natural compression and clear sonic
quality and performance for the working musician, studio operator or anyone who
needs a comp/limiter with warm, smooth analog sound.Each channel uses one
ROLLS premium 7025 tube in a unique configuration to give superior signal
control.The unit has both XLR and 1/4” inputs and outputs.Plus, it has a Side
Chain input and output for each channel.The side chain provides direct access to
the detector circuits.
INSPECTION
1.Unpack and inspect the RP282 box and package.
Your RP282 was carefully packed at the factory in a protective carton. Nonethe-
less, be sure to examine the unit and the carton for any signs of damage that may
have occurred during shipping.If obvious physical damage is noticed, contact the
carrier immediately to make a damage claim.We suggest saving the shipping
carton and packing materials for safely transporting the unit in the future.
2.Please complete theWarranty Registration Card and return it to the factory.
OPERATION
THE FOLLOWING SETTINGS ARE APPROXIMATE, THEY ARE LISTED AS
SUGGESTIONS ONLY.
VOCAL COMPRESSION
The most effective way to connect your
RP282 for vocal compression is by patching it
into a channel insert of your mixing board.You
will need an “insert”cable like the one shown.
Connect the INPUT of the RP282 to the mixer’s Send jack, and the OUTPUT to
the mixer’s Return.
Set the level to the RP282 compressor by speaking or singing into the micro-
phone at the same level used during performance.Set the Meter switch to Output,
and adjust the gain control on your mixer so the RP282 meter moves to approxi-
mately 0.
Press in the Active button to put the RP282 in compression mode.See the
example diagram below for settings.
-20 -10
OUTPUT LEVEL THRESHOLD RATIO ATTACK RELEASE
4:1 5:1
- OO dB +22 -20 dB +20 .5 ms 100 .1 Sec 2
2:1 OO:1
DRUM COMPRESSION
The RP282 may be used to compress various drum parts for a smooth, tight drum
sound as well as more control over a final mix.Connect your RP282 to the insert
of your mixer and set the input level as directed above.Shown below is an ex-
ample of a kick or snare drum compression setting.
OUTPUT LEVEL THRESHOLD RATIO ATTACK RELEASE
-20 -10 4:1 5:1
- OO dB +22 -20 dB +20 .5 ms 100 .1 Sec 2
2:1 OO:1

2 3
FRONT PANEL DESCRIPTION
NOTE:Channel One descriptions are identical to ChannelTwo
ACTIVE SWITCH:Engages and disengages the compression.
OUTPUT LEVEL:Varies the overall signal level from the RP282.
THRESHOLD:Sets the level at which the incoming signal must overcome in order
for the RP282 to begin compressing.
RATIO: Adjusts the signal to compression ratio.This sets the amount of increase
in input signal required to raise the output signal 1 dB.
ATTACK:Varies the amount of time taken for the RP282 to begin compressing
after theThreshold level has been reached.
RELEASE:Varies the amount of time taken for the RP282 to return to normal gain
once the signal has dropped below theThreshold level.
METER SWITCH:Switched the signal metering from indicating the output jack
level, to indicating the amount of gain reduction.
VU METER:Indicates either the output signal level, or the amount of gain reduc-
tion, depending on the position of the Meter Switch.
NOTE:THE INPUT SIGNAL LEVEL MAY ALSO BE INDICATED BY PRESSING
OUTTHE ACTIVE SWITCH AND BYPASSINGTHE COMPRESSOR CIRCUITS.
POWER SWITCH:Turns the RP282 main power on and off.
CAUTION
WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN
OR MOISTURE.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT
NOT REMOVE BACK. NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
RISQUE DE CHOC - NE PAS ENLEVER
RISK OF ELECTRIC SHOCK
DO NOT OPEN
120 VAC
50/60 Hz 15 VA
MADE IN U.S.A.
MODEL RP583
SERIAL NUMBER
583-
OUTPUT
CHANNEL TWO
SIDE CHAIN
INPUT OUTPUT
CHANNEL ONE
SIDE CHAIN
INPUT
BAL UNBAL INPUT OUTPUT UNBAL BAL BAL UNBAL INPUT OUTPUT UNBAL BAL
20 10 5
3
036
@ *
+4 REF
OUTPUT
GAIN
REDUCTION
Channel
One
Channel
Two
ACTIVE
OUTPUT LEVEL THRESHOLD RATIO ATTACK RELEASE
METER
ACTIVE
- OO 0 -25 dB +10 .5 ms 100 100 ms 500
-25 dB +10 .5 ms 100 100 ms 500
METER CHANNEL ONE CHANNEL TWO
Dual Tube Compressor/Limiter
RP282a
2:1 OO:1
2:1 OO:1
- OO 0
4:1 5:1
4:1 5:1
STEREO
LINK
20 10 5
3
036
@ *
REAR PANEL DESCRIPTION
NOTE:Channel One descriptions are identical to ChannelTwo.
OUTPUTS:XLR balanced and 1/4”unbalanced connectors for connecting the
RP282 to a mixer or other line level input.
SIDE CHAIN INPUT:1/4”unbalanced jack for receiving incoming signals to
directly access the detector circuit of the compressor.
SIDE CHAIN OUTPUT:1/4’unbalanced jack for sending out the signal from the
RP282.This jack may also be used as a pre-Output Level output.IMPORTANT:
The Side Chain Inputs and Outputs are not effects loops, they break the
signal path of the RP282 control circuitry.
INPUTS:XLR balanced and 1/4”unbalanced connectors for connecting line level
signals to the RP282.
SPECIFICATIONS
Frequency Response: 10 Hz - 40 kHz
InputImpedance: 10K 9balanced
1M 9unbalanced
THD + Nosie: 0.1% typical
S/N Ratio: 103 dB
Max Gain: 40 dB (Threshold @ -40 dB)
Indicators: (2) Active LEDs, (2) analogVU meters
Input/Output jacks: XLR balanced and 1/4”unbalanced
Dimensions: 3.5”x 6”x 19”(89 x 162 x 482 mm)
Power: 120 VAC, (230 VAC) 15 VA
Approval: CSA NRTL (Pending)