Rolls HR155 User Manual
HR155 Rack Mount Monitor
Is ideal for speaker monitoring anywhere space is limited. The all metal
chassis of the HR155 will insure years of reliable use. The internal amplifi er is designed to dissipate heat with in the chassis of the HR155, so no
outside cooling is required (i.e. it can be mounted into a rack with units
above and below it).
HR155
Rack Mount Speaker Monitor
MADE IN USA
www.rolls.com
HR155
POWER
ON - OFF
PS15
LEVEL
CH 1
PHANTOM
LEVEL
CH 2
INPUT
CH 2
L
INPUT
CH 1
R
IN
OUT
LEVEL
CH 3CH 4
INPUT
CH 3
L
L
R
R
LINE INPUT
OUT
LINE
LEVEL
INPUT
MONO
CH 2
MUTE
MADE IN USA
www.rolls.com
STEREO
3.5mm
CH 4
RIGHT
+
-
SPECIFICATIONS
Input Impedance: 10K Ohms
THD + Noise: .05% Typical
Frequency Response: 100 Hz - 20 kHz (+0 / -3 dB)
Voltage Gain: 20 dB line
Current Draw: 500 mA nominal
Connectors: 1 Female XLR, 1/8" TRS, 2 - RCA's
DC Power Jack
Supply Voltage: 15 VDC
Size: 7.5" x 3.125" x 1.75"
Weight: 1.25 lbs.
Speaker Size: (2 speakers) each 2.5" X 1.75"
VOLUME
STEREO IN
POWER
pwr
5 + 5 WATT MIX/AMP
CLASS AMP
MA251
BOTH OUTPUTS MUST BE USED
LEFT
-
+
PS12
Rolls Corporation
75889 01550
68
Salt Lake City, UT
09/10
Quick Start Guide
INTRODUCTION
Thank you for your purchase of the HR155. This unit is designed and
manufactured to monitor sound from any stereo RCA line level output or
a single balanced XLR at line level. The front panel stereo 3.5mm (1/8"
jack) input provides the fi nal touch which makes the HR155 a valuable
tool for any sound reinforcement, recording, or install application that
needs to monitor sound from a rack mounted unit.
INSPECTION
1. Unpack and Inspect the HR155 package.
Your HR155 was carefully packed at the factory in a protective carton.
Nonetheless, 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. For warranty registration go to our website: WWW.ROLLS.COM
DESCRIPTION
REAR PANEL
XLR Input: XLR balanced input for connection to any standard line level
XLR output.
INPUT: RCA stereo for connection to any line level RCA output.
OUT: RCA pass thru for the HR155. If an input is plugged into
the RCA INPUT of the HR155 the OUT is a direct pass
thru for the signal eliminating the need for Y type cables in your
installation.
PS15: Located on the back of the unit is the PS15 power jack for connec
-tion to the Rolls PS15 external power supply.
FRONT PANEL
STEREO IN: 1/8" TRS jack (3.5mm) stereo for connection to a line level
signal.
VOLUME: Controls /adjusts the volume level of the HR155.
POWER: Turns on and off the power the HR155.
PWR: Indicates the HR155 is on.
SCHEMATIC
+V
47
R9
C6
120PF
8
R6 10K
10K
R5
1U
C2
3
CH 4
J1
C16
SPEAKER OUT
Q2
TIP42
7
U1B
6
R4
10K
1U
R1
C1
1 2
XLR F PC
SPEAKER
SPK1
1K U
4556
3
P1
4556
5
10K
564
J2B
Q1
1
U1A
2
+B
P100K
R3
10K
C5
120PF
R2
RCAX4 PC
SPK2
TIP41
R10
4
R16 10K
+B
10K
47
C4
231
J2A
SPEAKER
C8 120PF
R11 100K
10U
RCAX4 PC
R12
J3
10U
10K
3.5STJK
C7
R14
R7
10K
C3
+BLINE/HDPHONE
R8
22K
22K
R13
4.7K
+V
C17
456
SW1B
DPDT
231
J5
1
A
Rev:
1
Sheet of
HR155.SCH
5968 S 350 W
Murray Utah 84107
Rolls Corporation
7 JULY 2010
HR155 POWER SPEAKER
FXa
Date:
Title
Size: Document Number:
47U
D5
LDRR
1000 UF
123
SW1A
DPDT
1N4001
D1
15 VDC 800MA
ROLLS PS15 ONLY
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