Art ARTcessories DUAL RP User manual

ARTcessories
Service Manual

IMPORTANT SAFETY INSTRUCTION – READ FIRST
This symbol, whenever it appears alerts you to the presence of uninsulated dangerous voltage inside the
enclosure-voltage that may be sufficient to constitute a risk of shock.
This symbol, whenever it appears, alerts you to important operating and maintenance instructions in the
accompanying literature. Please read the manual.
Read Instructions: Retain safety and operating instructions for future reference. Heed all warnings printed here and on
the equipment. Follow the operating instructions printed in this user manual.
Do not open: There are no user serviceable parts inside. Refer any service work to qualified technical personnel only.
Environment: Protect from excessive dirt, dust, heat, and vibration when operating and storing. Avoid tobacco ash, drink
spillage and smoke, especially that associated with smoke machines.
Handling: Protect the controls from damage during transit. Use adequate padding if you need to ship the unit. To avoid
injury to yourself or damage to the equipment, take care when lifting, moving or carrying the unit.
Servicing: Refer servicing to qualified technical personnel.
Installation: Install the unit in accordance with the instructions printed in the user manual.

1
INTRODUCTION
Thank you for purchasing Applied Research and Technology’s DUAL RP. The Dual RP is the ideal solution to
increasing the performance of your ribbon and Dynamic microphones. This remotely powered preamp brings out all
of the nuances of your mic before running into your recording interface or Mixer through long cable runs. With the
Dual RP you can tailor the loading on the mic through the variable impedance controls.
The balanced output drives long cable runs with ease allowing you to place the preamp as close as possible to the
mic before picking up any noise.
The Dual RP is packaged in a rugged extrusion with rubber feet for long, reliable operation.
Get the very best out of your mics with the Dual RP!
FEATURES
• Two very low noise mic preamps
• Variable Impedance controls
• Low Cut filter single pole, 150Hz
• Adds at least 20dB of gain to your mic
• Runs off a Phantom power supply
• Able to drive long balanced cables
• Heavy duty extruded chassis
• Designed and developed in the USA

2
INSTALLATION and OPERATION
Connect the outputs of the Dual RP to a Phantom powered source such as a mixer or preamplifier.
Connect the Dual RP inputs to your Ribbon or dynamic mics.
Make sure you start with the gain pots set to their minimum settings. Once connected engage the Phantom power
and adjust the gain on the Dual RP for the desired level. The phantom power will not pass through to the inputs thus avoiding
any potential damage to any dynamic or ribbon mics. As an added feature you have the ability to remove any unwanted
wind noise or rumble by enabling the Low Cut filter per input.

3
APPLICATIONS
Perfect for: getting the most out of your ribbon and dynamic mic!
The Dual RP may be used in a wide variety of applications and environments. Self-contained in an extruded
enclosure, the remote mic Preamp is designed for continuous professional use. Because the unit is compact and
lightweight, mounting location is not critical.
LOW CUT FILTER control
The Low Cut Filter is a single tuned High Pass Filter. The input signal can be filtered to remove low frequency
information. The roll off frequency is set at 100Hz. Since it is single tuned, it preserves some low frequency content
so its use is less obtrusive. It is especially useful in close mic’d applications cutting out pops and wind noise.
Variable Impedance Function
Using this variable impedance function allows the user to adjust the input impedance seen by the microphone, in
turn getting a better tonal response from your microphone used.
Dynamic Mic
Dynamic (coil) microphones are sensitive to loading. If these mics are not coupled correctly, the result maybe a
loss in frequency response and could result in added distortion.
As an example a common mic like the SM57 prefers a 600 Ohm load. When the load is varied above or below the
600 Ohms, then the mid range resonance could sound harsh and distorted. The low-end response will also sound
more controlled with a 600 Ohm load. There are many dynamic mics that may have similar issues but not be as
sensitive to loading as the SM57.
Ribbon Mic
Ribbon type (transformer coupled) microphones are sensitive to the input impedance of the preamps or mixers
used to achieve the optimum frequency response. A Ribbon mic would like to see an input impedance several times
larger than its output impedance. Ribbon mics, being transformer coupled, have increased impedance at high and
low frequencies. On the low end the mic is power bound, as you load it there becomes a low frequency cut off at
higher levels, so it may sound distorted. At the high end, the output impedance of the transformer increases
(independent of level), so the greater the load the less high end.
As an example, a typical ribbon mic with a characteristic impedance of 300 Ohms may have an inherent 600 Ohm
impedance at 20kHz and a 2k impedance at its low frequency resonance (about 50Hz). If you set the input
impedance to 10k Ohms your result would be a 0.25dB drop at 20kHz. This would also drop the low frequency
resonance by 1.3dB. Compare this to a typical mixer input (3k input impedance) where you would get a 0.75dB
drop at 20kHz and 3.6dB at resonance.
So increasing the input impedance seen by the mic using the impedance pots on the Dual RP will result in an
optimum performance from the ribbon mic used. If the preamp or mixer input impedance is too low then you will
start to limit the frequency response of the ribbon mic. When this occurs, the low-end of the microphone’s sound
quality will be limited and the transient response will sound flat degrading the overall performance of the
microphone. So by adjusting the impedance pot on the Dual RP, you can achieve a clean full frequency response
from your microphones using the Dual RP.
The beauty of the DRP and the RP-1 may be the ability to operate at higher impedance or
control the impedance vs. the mixer
1
you are currently using.
1
A Phantom power capable input has around 13K maximum impedance simply due to the 6.8k Phantom power pull-up
resistors.

4
FULL BILL OF MATERIALS
PART # VALUE DESCRIPTION PATTERN
QTY LOCATION
RESISTOR SECTION
1.00K Resistor, Metal Film, 0.1% AXIAL0.4 4 R100, R101, R200, R201
10.0K Resistor, Metal Film, 0.1% AXIAL0.4 4 R104, R107, R204, R207
3.01K Resistor, Metal Film, 0.1% AXIAL0.4 4 R113, R114, R213, R214
681 Ohms Resistor, Metal Film, 0.1% AXIAL0.4 4 R116, R117, R216, R217
150 Ohms Resistor, Carbon Film, 5% AXIAL0.4 2 R115, R215
160K Resistor, Carbon Film, 5% AXIAL0.4 2 R103, R203
33 Ohms Resistor, Carbon Film, 5% AXIAL0.4 2 R111, R211
10.0 Ohms Resistor, Carbon Film, 1% AXIAL0.4 4 R110, R112, R210, R212
51.1K Resistor, Carbon Film, 1% AXIAL0.4 6 R102, R108, R109, R202, R208, R209
POT/ SWITCH SECTION
1001025104
10k "A"
taper POT - Single Control / Trimmer VR-16 2 VR100, VR200
1005021101 SW-DPDT Switch, DPDT, PCB Mount LC2255 2 SW100, SW200
CAPACITOR SECTION
300pF Capacitor, Film / Ceramic RADIAL0.1 6 C105, C106, C107, C205,
C206, C207
100uF/25V Capacitor, Electrolytic (polarized), Rubycon 25YXJ100MTA5X11 LYTIC.1 6 C100, C108, C109, C200, C208, C209
33uF/35V Capacitor, Electrolytic (polarized), Rubycon 25PK220MEFCTA6.3X11, LYTIC.1 8 C101, C102, C103, C104, C201, C202, C203, C204
470uF/10V Capacitor, Electrolytic (polarized), Rubycon 10YXG470MEFC6.3X11 LYTIC.1 2 C110, C210
JACKS AND CONNECTORS SECTION
ARTC107 XLR- FEMALE XLR-Female Ref# Lih Sheng LX-1604H-3 XLR- FEMALE 2 J101, J201
ARTC108 XLR-MALE Jack, Canon XLR Male, 3-pin PCB Mount XLR JACK- M 2 J100, J200
DIODE AND TRANSISTOR SECTION
ZTX751 PNP Transistor - Single TO92-EBC 4 Q100, Q102, Q200, Q202
2N4401 NPN Transistor - Single TO92-EBC 4 Q101, Q103, Q201, Q203
1N4148 Diode - Signal or Power Rectifier DIODE0.4 4 D100, D101, D200, D201

5
PART # VALUE DESCRIPTION PATTERN QTY
LOCATION
MECHANICAL SECTION
DRP3001100a PCB 1
1662001100 Extrusion Chassis 1
DRP2002100 Front Panel 1
DRP2003100 Rear Panel 1
1662005100 Rubber side caps 2
2572004101 Round Plastic KNOB, .54" dia. Knobs for front panel pots 2 VR100, VR200
Gray switch cap
For front panel
switches 2 SW100, SW200
1005032126 FAS SCR #4 x3/8 PH FL HD ST BLK Chassis screws 4
1005032125 PH,RD screw self tap for
plastic Screws for XLR jacks and tube bracket 8 JK1-JK4
SERVICE PARTS
ART PART # VALUE DESCRIPTION PATTERN QTY LOCATION
1001025104 10k "A" taper POT - Single Control / Trimmer VR-16 2 VR100, VR200
1005021101 SW-DPDT
Swt, PCB Mount Pushbutton Switch DPDT
Standard Through Hole, Right Angle LC2255 2 SW100, SW200
ARTC107 XLR-FEMALE XLR-Female Ref# Lih Sheng LX-1604H-3 XLR-FEMALE 2 J101, J201
ARTC108 XLR-MALE Jack, Canon XLR Male, 3-pin PCB Mount XLR JACK-M 2 J100, J200
DRP2002100 Front Panel 1
DRP2003100 Rear Panel 1
1662005100 Rubber side caps 2
2572004101
Round Plastic
KNOB, .54" dia. Knobs for front panel pots 2 VR100, VR200
1005121102 Black switch cap Black switch cap rounded tip For front panel
switches 2 SW100, SW200

1 1
2 2
3 3
4 4
D D
C C B B
A A
Title
Number RevisionSize
A
Date: 4/16/2020 Sheet of File: C:\Products\..\DRP-4001-100a.SchDoc Drawn By:
Q101
2N4401
Q103 2N4401
Q100 ZTX751 Q102
ZTX751
3
21
G
J100
XLR-MALE
3
2 1
G
J101
XLR-FEMALE
VR100
10k "A" taper
R113 3.01K
R114 3.01K
R111 33 Ohms
R109 51.1K
R104 10.0K
R107 10.0K
R112
10.0 Ohms
R110
10.0 Ohms
R100 1.00K R101 1.00K
R102 51.1K R103 160K
R108 51.1K
C107 300pF
C106 300pF
C105 300pF
R115 150 Ohms
C104
33uF/35V
C100 100uF/25V
C102
33uF/35V
C103
33uF/35V
C101 33uF/35V
Gnd-1
Gnd-1
Bias-1 Bias-1
MIC INPUT 1
Output 1
(Phantom Power input)
IMPEDANCE 1
10K150
Q201
2N4401
Q203 2N4401
Q200 ZTX751 Q202
ZTX751
3
21
G
J200
XLR-MALE
3
2 1
G
J201
XLR-FEMALE
VR200 10k "A" taper
R213 3.01K
R214 3.01K
R211 33 Ohms
R209 51.1K
R204 10.0K
R212
10.0 Ohms
R210
10.0 Ohms
R200 1.00K R201 1.00K
R202 51.1K R203 160K
R208 51.1K
C207 300pF
C206 300pF
C205 300pF
R215 150 Ohms
C204
33uF/35V
C200 100uF/25V C202
33uF/35V
C203
33uF/35V
C201 33uF/35V
Gnd-2
Gnd-2
Bias-2
Bias-2
MIC INPUT 2
Output 2
(Phantom Power input)
IMPEDANCE 2
10K150
R207 10.0K
Dual Remote Preamp
DRP-4001-100 a
1 1
m.m.
D100
1N4148
D101
1N4148
R117 681 Ohms
R116 681 Ohms
D200 1N4148
D201 1N4148
R217 681 Ohms
R216 681 Ohms
C108
100uF/25V
C109
100uF/25V
C208
100uF/25V
C209
100uF/25V
2
3
1
SW100A SW-DPDT
5
6 4
SW200B SW-DPDT
C210
470uF/10V LOW CUT 2
C110
470uF/10V
LOW CUT 1
PIC10000
COC100
PIC10100
COC101
PIC10200
COC102
PIC10300
COC103
PIC10400
COC104
PIC10501
PIC10502
COC105
PIC10601 PIC10602
COC106
PIC10701 PIC10702
COC107
PIC10800
COC108
PIC10900
COC109
PIC11000
COC110
PIC20000
COC200
PIC20100
COC201
PIC20200
COC202
PIC20300
COC203
PIC20400
COC204
PIC20501
PIC20502
COC205
PIC20601 PIC20602
COC206
PIC20701 PIC20702
COC207
PIC20800
COC208
PIC20900
COC209
PIC21000
COC210
PID1000A PID1000K
COD100
PID1010APID1010K
COD101
PID2000A PID2000K
COD200
PID2010APID2010K
COD201
PIJ10001 PIJ10002
PIJ10003PIJ1000G
COJ100
PIJ10101PIJ10102
PIJ10103PIJ1010G
COJ101
PIJ20001
PIJ20002
PIJ20003PIJ2000G
COJ200
PIJ20101
PIJ20102
PIJ20103PIJ2010G
COJ201
PIQ1000B
PIQ1000C PIQ1000E
COQ100
PIQ1010B
PIQ1010C PIQ1010E
COQ101
PIQ1020B
PIQ1020C PIQ1020E
COQ102
PIQ1030B
PIQ1030C PIQ1030E
COQ103
PIQ2000B
PIQ2000C PIQ2000E
COQ200
PIQ2010B
PIQ2010C PIQ2010E
COQ201
PIQ2020B
PIQ2020C PIQ2020E
COQ202
PIQ2030B
PIQ2030C PIQ2030E
COQ203
PIR10001
PIR10002
COR100
PIR10101
PIR10102
COR101
PIR10201 PIR10202
COR102
PIR10301 PIR10302
COR103
PIR10401 PIR10402
COR104
PIR10701 PIR10702
COR107
PIR10801 PIR10802
COR108
PIR10901 PIR10902
COR109
PIR11001
PIR11002
COR110
PIR11101 PIR11102
COR111
PIR11201 PIR11202
COR112
PIR11301 PIR11302
COR113
PIR11401 PIR11402
COR114
PIR11501 PIR11502
COR115
PIR11601 PIR11602
COR116
PIR11701 PIR11702
COR117
PIR20001PIR20002
COR200
PIR20101 PIR20102
COR201
PIR20201 PIR20202
COR202
PIR20301 PIR20302
COR203
PIR20401 PIR20402
COR204
PIR20701 PIR20702
COR207
PIR20801 PIR20802
COR208
PIR20901 PIR20902
COR209
PIR21001PIR21002
COR210
PIR21101
PIR21102
COR211
PIR21201PIR21202
COR212
PIR21301 PIR21302
COR213
PIR21401 PIR21402
COR214
PIR21501 PIR21502
COR215
PIR21601 PIR21602
COR216
PIR21701 PIR21702
COR217
PISW10001
PISW10002
PISW10003
COSW100A
PISW20004
PISW20005
PISW20006
COSW200B
PIVR10001
PIVR10002
PIVR10003
COVR100
PIVR20001
PIVR20002
PIVR20003
COVR200
PIC10100
PIR10202 PIR10301 PIR10801
PIR10901
PIC20100
PIR20202 PIR20301 PIR20801 PIR20901
PIC10000
PIC10100
PIC10501
PIC10701
PIJ10001
PIJ1000G
PIJ10101
PIR10302
PIR10402 PIR10702PIR11301 PIR11401
PIC20000
PIC20100
PIC20501
PIC20701
PIJ20001
PIJ2000G
PIJ20101
PIR20302
PIR20402 PIR20702PIR21301
PIR21401
PISW20006
PISW10003
PIR21501
PIVR20001
PIR11501
PIVR10001
PIQ2020C
PIQ2030B
PIR20701
PIQ2000C
PIQ2010B
PIR20401
PIQ1020C
PIQ1030B
PIR10701
PIQ1000C
PIQ1010B
PIR10401
PIJ2010GPIJ1010G
PID2000K
PIQ2000E
PIQ2010C
PIR21102
PIR21602
PID1000K
PIQ1000E
PIQ1010C
PIR11102
PIR11602
PIC21000
PISW20004
PIC20900
PIJ20103
PIVR20002
PIVR20003
PIC20900
PIR21202
PIC20800
PIJ20102
PIR21502
PIC20800PIR21001
PIC20602 PIC20702
PID2000A
PIQ2000B
PIR20802
PIR21002
PIC20502
PIC20601
PID2010A
PIQ2020B
PIR20902
PIR21201
PIC20400
PIC21000
PID2010K
PIQ2020E
PIQ2030C
PIR21702
PIC20400PIR21101
PISW20005
PIC20300
PIQ2030E PIR21402
PIC20300
PIJ20002
PIR20102
PIC20200
PIQ2010E PIR21302
PIC20200
PIJ20003
PIR20001
PIC20000
PIR20002 PIR20101
PIR20201 PIR21601 PIR21701
PIC11000
PISW10001
PIC10900
PIJ10103
PIVR10002
PIVR10003
PIC10900 PIR11201
PIC10800
PIJ10102
PIR11502
PIC10800PIR11002
PIC10602 PIC10702
PID1000A
PIQ1000B
PIR10802
PIR11001
PIC10502
PIC10601
PID1010A
PIQ1020B
PIR10902
PIR11202
PIC10400 PIC11000
PID1010K
PIQ1020E
PIQ1030C
PIR11702
PIC10400PIR11101
PISW10002
PIC10300
PIQ1030E PIR11402
PIC10300
PIJ10002
PIR10102
PIC10200
PIQ1010E PIR11302
PIC10200
PIJ10003
PIR10001
PIC10000
PIR10002 PIR10101
PIR10201
PIR11601 PIR11701

PAC10000
COC100
PAC10100
COC101
PAC10200
COC102
PAC10300
COC103
PAC10400
COC104
PAC10501PAC10502
COC105
PAC10602 PAC10601
COC106
PAC10701PAC10702
COC107
PAC10800
COC108
PAC10900
COC109
PAC11000
COC110
PAC20000
COC200
PAC20100
COC201
PAC20200
COC202
PAC20300
COC203
PAC20400
COC204
PAC20502 PAC20501
COC205
PAC20602 PAC20601
COC206
PAC20701PAC20702
COC207
PAC20800
COC208
PAC20900
COC209
PAC21000
COC210
PAD1000K
PAD1000A
COD100
PAD1010K
PAD1010A
COD101
PAD2000K
PAD2000A
COD200
PAD2010K
PAD2010A
COD201
PAJ10002 PAJ10003
PAJ10005
PAJ10006
PAJ1000G
PAJ10001
COJ100
PAJ10105
PAJ10104
PAJ10102 PAJ10103 PAJ10101
COJ101
PAJ20001
PAJ2000G
PAJ20006
PAJ20005
PAJ20003
PAJ20002
COJ200
PAJ20101
PAJ20103
PAJ20102
PAJ20104
PAJ20105
COJ201
PAQ1000B
PAQ1000C
PAQ1000E
COQ100
PAQ1010E
PAQ1010C
PAQ1010B
COQ101
PAQ1020B
PAQ1020C
PAQ1020E
COQ102
PAQ1030E
PAQ1030C
PAQ1030B
COQ103
PAQ2000B
PAQ2000C
PAQ2000E
COQ200
PAQ2010E
PAQ2010C
PAQ2010B
COQ201
PAQ2020B
PAQ2020C
PAQ2020E
COQ202
PAQ2030E
PAQ2030C
PAQ2030B
COQ203
PAR10002
PAR10001
COR100
PAR10101
PAR10102
COR101
PAR10202
PAR10201
COR102
PAR10301
PAR10302
COR103
PAR10402
PAR10401
COR104
PAR10701
PAR10702
COR107
PAR10802
PAR10801
COR108
PAR10901
PAR10902
COR109
PAR11002
PAR11001
COR110
PAR11101
PAR11102
COR111
PAR11202
PAR11201
COR112
PAR11301
PAR11302
COR113
PAR11402
PAR11401
COR114
PAR11501
PAR11502
COR115
PAR11601
PAR11602
COR116
PAR11701
PAR11702
COR117
PAR20002
PAR20001
COR200
PAR20101
PAR20102
COR201
PAR20202
PAR20201
COR202
PAR20301
PAR20302
COR203
PAR20402
PAR20401
COR204
PAR20701
PAR20702
COR207
PAR20802
PAR20801
COR208
PAR20901
PAR20902
COR209
PAR21002
PAR21001
COR210
PAR21101
PAR21102
COR211
PAR21202
PAR21201
COR212
PAR21301
PAR21302
COR213
PAR21402
PAR21401
COR214
PAR21501
PAR21502
COR215
PAR21601
PAR21602
COR216
PAR21701
PAR21702
COR217
PASW10003
PASW10001
PASW10002
PASW10004
PASW10005
PASW10006
PASW1000M1
PASW1000M2
COSW100
PASW20003
PASW20001
PASW20002
PASW20004
PASW20005
PASW20006
PASW2000M1
PASW2000M2
COSW200
PAVR10002PAVR10001 PAVR10003 PAVR20003PAVR20001 PAVR20002
PAC10100
PAR10202
PAR10301
PAR10801
PAR10901
PAC20100
PAR20202
PAR20301
PAR20801
PAR20901
PAC10000
PAC10100
PAC10501
PAC10701
PAJ10001
PAJ1000G
PAJ10101
PAR10302
PAR10402 PAR10702
PAR11301 PAR11401
PAC20000
PAC20100
PAC20501
PAC20701
PAJ20001
PAJ2000G
PAJ20101
PAR20302
PAR20402 PAR20702
PAR21301 PAR21401
PAC10000
PAR10002PAR10101 PAR10201
PAR11601
PAR11701
PAC10200
PAJ10003
PAR10001
PAC10200
PAQ1010E
PAR11302
PAC10300
PAJ10002
PAR10102
PAC10300
PAQ1030E
PAR11402
PAC10400
PAR11101
PASW10002
PAC10400
PAC11000
PAD1010K
PAQ1020E
PAQ1030C
PAR11702
PAC10502
PAC10601 PAD1010A
PAQ1020B
PAR10902PAR11202
PAC10602
PAC10702
PAD1000A
PAQ1000B
PAR10802
PAR11001
PAC10800
PAR11002
PAC10800
PAJ10102
PAR11502
PAC10900 PAR11201PAC10900
PAJ10103
PAVR10002 PAVR10003
PAC11000
PASW10001
PAC20000
PAR20002PAR20101 PAR20201
PAR21601
PAR21701
PAC20200
PAJ20003
PAR20001
PAC20200
PAQ2010E
PAR21302
PAC20300
PAJ20002
PAR20102
PAC20300
PAQ2030E
PAR21402
PAC20400
PAR21101
PASW20005
PAC20400
PAC21000
PAD2010K
PAQ2020E
PAQ2030C
PAR21702
PAC20502
PAC20601 PAD2010A
PAQ2020B
PAR20902PAR21201
PAC20602
PAC20702
PAD2000A
PAQ2000B
PAR20802
PAR21002
PAC20800
PAR21001
PAC20800
PAJ20102
PAR21502
PAC20900 PAR21202PAC20900
PAJ20103
PAVR20002 PAVR20003
PAC21000
PASW20004
PAD1000K
PAQ1000E
PAQ1010C
PAR11102 PAR11602
PAD2000K
PAQ2000E
PAQ2010C
PAR21102 PAR21602
PAQ1000C
PAQ1010B
PAR10401
PAQ1020C
PAQ1030B
PAR10701
PAQ2000C
PAQ2010B
PAR20401
PAQ2020C
PAQ2030B
PAR20701
PAR11501
PAVR10001
PAR21501
PAVR20001

8
WARRANTY INFORMATION
Limited Warranty
Applied Research and Technology will provide warranty and service for this unit in accordance with the following
warrants:
Applied Research and Technology, (A R T) warrants to the original purchaser that this product and the components
thereof will be free from defects in workmanship and materials for a period of three years from the date of
purchase. Applied Research and Technology will, without charge, repair or replace, at its option, defective product
or component parts upon prepaid delivery to the factory service department or authorized service center,
accompanied by proof of purchase date in the form of a valid sales receipt.
Online Registration
We recommend that you register your product online to insure prompt warranty repair servicing on any repair
issues. Please go to www.artproaudio.com. Select “Support”, then "Product Registration". Then input your
information here.
Exclusions
This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized
alterations or repairs. This warranty is void if the serial number is altered, defaced, or removed.
A R T reserves the right to make changes in design or make additions to or improvements upon this product without
any obligation to install the same on products previously manufactured.
A R T shall not be liable for any consequential damages, including without limitation damages resulting from loss of
use. Some states do not allow limitations of incidental or consequential damages, so the above limitation or
exclusion may not apply to you. This warranty gives you specific rights and you may have other rights, which vary
from state to state.
For units purchased outside the United States, an authorized distributor of Applied Research and Technology will
provide service
Fill in the following information for your reference:
Date of purchase ___________________
Purchased from ___________________

9
SERVICE
The following information is provided in the unlikely event that your unit requires service.
Be sure that the unit is the cause of the problem. Check to make sure the unit has power, all cables are connected
correctly, and the cables themselves are in working condition. You may want to consult with your dealer for
assistance in troubleshooting or testing your particular configuration.
If you believe that the ART unit is at fault, go to www.artproaudio.com.
Select “Support”, then “Return Authorization Request” to request a return authorization number.
If you are returning the unit for service, pack the unit in its original carton or a reasonable substitute. The original
packaging may not be suitable as a shipping carton, so consider putting the packaged unit in another box for
shipping. Print the RA number clearly on the outside of the shipping box. Print your return shipping address on the
outside of the box.
Include, with your unit, a note with the RA number and your contact information, including a return shipping address
(we cannot ship to a P.O. box) and a daytime phone number, and a description of the problem, preferably attached
to the top of the unit. Also include a copy of your purchase receipt.
SPECIFICATIONS
Input Connections 2 - XLR
Input Impedance 150 Ohms to 10k Ohms, variable
Max Input level -18dBu
Output Connections 2 – XLR
Low Cut Filter Single pole, 100Hz
Max. Output Level +1dBm (600 Ohm Load)/+9dBu (10k load)
Gain 20dB @600 Ohms load, +27dB @ 10k load
THD < .002% @1kHz typ.
E.I.N. -129dBu “C” wtd.
C.M.R.R. >60dB 20-20kHz
Power Requirements External Power requirements
Standard 48V Phantom power supply.
Dimensions (HxWxD) 1.85-inch x 4.6-inch x 3.9-inch
(47mm x 117mm x 99mm)
Weight 0.71 lbs / 0.32 kg

www.artproaudio.com
E-mail: [e-mail]
© 2020 Applied Research & Technology / Yorkville Sound
DUAL RP DRP-5004-101