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INTRODUCTION
Thank you for your purchase of the ROLLS RPB486 PHANTOM HEX 6 channel
phantom power supply. This unit powers up to 6 condenser microphones with 48
volts of ultra clean phantom power. The outputs are 1/4” Tip-Ring-Sleeve bal-
anced for easy connection to a digital multi-track recorder.
To eliminate the possibility of any DC voltages, the RPB486 features pull-down
resistors and isolation capacitors on all outputs.
DESCRIPTION
FRONT PANE
L
The green LED for each channel lights when that channel is in use. All these
LEDs light momentarily when the RPB486 is powered up.
The red PWR led indicates the unit is on.
REAR PANEL
120 VAC 50/60 HZ 15 VA: Power Cord. Connect to a properly grounded AC
source.
NOTE: THE FOLLOWING DESCRIPTION APPLIES TO EACH OF THE SIX
CHANNELS.
INPUT: Female balanced XLR jack - for connection to the condenser microphone.
Pin 2 is hot. This jack carries the 48 volts of phantom power to the microphone.
OUTPUT: 1/4” Tip-Ring-Sleeve balanced jack - for connection to a mixer or multi-
track recorder. Note: If you are connecting this to a mixer, adjust the mixer’s gain
or trim control carefully for a suitable input level.
SPECIFICATIONS
Connectors: 6 ea. XLR female jacks (pin 2 hot)
6 ea. 1/4” TRS jacks (tip positive)
Phantom Power Voltage: 48 Volts
Max Phantom Power Current: 14 mA each channel
Power Supply: Linear 120VAC 50/60Hz
Size (W x H x D): 19” x 1.75” x 2.5” (48 x 4.5 x 12.7)
Weight: 4 lbs.
INSTALLATION
Mount the RPB486 in a sturdy rack. Connect microphones to properly shielded
balanced cable, and connect the cable to the Input channels of the RPB486.
Connect the outputs of the RPB486 to the recording or mixing device.
The output impedance of the RPB486 will be the same as the impedance of your
microphone.
Important notice!
The RPB486 should be powered up and connected to the
microphones before power is applied to the power amplifiers
or recording device. A noticeable thump sound will be heard if
power amps are on before the RPB486 is powered up.
SCHEMATIC
Rev:Đ
Sheet
Đ
BaĐ RPB623.SCHĐ
AĐ
+48VĐ
R5Đ
100KĐ
J2Đ
PHONE 1/4
Đ
1Đ 2Đ
3Đ
J1Đ
XLR JACK F
Đ
POWERĐ
+48VĐ
D2Đ
1N4001Đ
D1Đ
1N4001Đ
IĐ
1Đ
GĐ
2Đ
OĐ
3Đ
U1Đ
7812Đ
C1Đ
47UFĐ
C6Đ
503Đ
T1Đ
MCI 407 4024Đ
SW3Đ
SW SPSTĐ
R4Đ
100KĐ
C2Đ
47UFĐ
D6Đ
LDSRĐ
C5Đ
470UFĐ
C4Đ
470UFĐ
1Đ 3Đ
2Đ
AC1Đ
AC PLUGĐ
D3Đ
ZD12VĐ
D5Đ
ZD12VĐ
D4Đ
ZD12VĐ
R1Đ
6.8KĐ
R2Đ
6.8KĐ
R3Đ
100Đ
D12Đ
LDLGĐ
C3Đ
47UĐ
+48VĐ
100KĐ
PHONE 1/4Đ
1Đ 2Đ
3Đ
J1AĐ
XLR JACK F
Đ
C1AĐ
47UFĐ
R5AĐ
100KĐ
C2AĐ
47UFĐ
R1AĐ
6.8KĐ
R2AĐ
6.8KĐ
R7Đ
100Đ
D11Đ
LDLGĐ
C3AĐ
47UFĐ
+48VĐ
100KĐ
PHONE 1/4Đ
1Đ 2Đ
3Đ
J1BĐ
XLR JACK F
Đ
C1BĐ
47UFĐ
R5BĐ
100KĐ
C2BĐ
47UFĐ
R1BĐ
6.8KĐ
R2BĐ
6.8KĐ
R8Đ
100Đ
D10Đ
LDLGĐ
C3BĐ
47UFĐ
+48VĐ
R5CĐ
100KĐ
J2CĐ
PHONE 1/4Đ
1Đ 2Đ
3Đ
J1CĐ
XLR JACK F
Đ
C1CĐ
47UFĐ
R4CĐ
100KĐ
C2CĐ
47UFĐ
R1CĐ
6.8KĐ
R2CĐ
6.8KĐ
R9Đ
100Đ
D9Đ
LDLG
Đ
C3CĐ
47UFĐ
+48VĐ
R5DĐ
100KĐ
J2DĐ
PHONE 1/4Đ
1Đ 2Đ
3Đ
J1DĐ
XLR JACK F
Đ
C1DĐ
47UFĐ
R4DĐ
100KĐ
C2DĐ
47UFĐ
R1DĐ
6.8KĐ
R2DĐ
6.8KĐ
R10Đ
100Đ
D8Đ
LDLG
Đ
C3DĐ
47UFĐ
+48VĐ
R5EĐ
100KĐ
J2EĐ
PHONE 1/4Đ
1Đ 2Đ
3Đ
J1EĐ
XLR JACK F
Đ
C1EĐ
47UFĐ
R4EĐ
100KĐ
C2EĐ
47UFĐ
R1EĐ
6.8KĐ
R2EĐ
6.8KĐ
R11Đ
100Đ
D7Đ
LDLG
Đ
C3EĐ
47UFĐ
J2AĐ
J2BĐ
R5AĐ
R5BĐ
ROLLS CORPORATIONĐ
5968 South 350 West
Đ
Murray, UT 84107Đ
PHANTOM HEX RPB623Đ
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RPB486
RPB486