Rolls PM351 Manual de Usario

Rolls tapón para los oídos PM351

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Connection guide
Rolls Corporation
Salt Lake City, UT
9/18
What's in the box?
1 - Made in USA PM351
1 - 15V power supply PN PS27s
1 - This owners manual
PM351 Personal Monitor
SPECIFICATIONS
Max Input Level: -20 dB XLR, +40 dB Line
+15 dB Instrument
Inst. Input Impedance: 50K ohms
Inst. Output Freq. Response: 10 - 30 kHz +/- 3 dB
Output Impedance, Hdphn: 10 ohms
Output Impedance, Inst.: 2 ea; 100 ohms balanced
Gain: 20 dB 1/4", 50 dB XLR
Hdphn Freq. Response: 20 - 20 kHz
S/N Ratio: 90 dB
Power: 9 - 16 VDC
Size (W x H x D): 4.5" x 3.3" x 1.5"
Weight: 1 lb (.45 Kg)
• Remote Powering the PM351
A very useful feature of the PM351 is the ability to send the
12-15VDC power to the unit via the LINE INPUT ring con-
nection. Make sure the Mono/Stereo switch is in the MONO
position. Connect the 12-15VDC to the Ring of the TRS plug
as shown here.
ROLLS WILL NOT BE HELD RESPONSIBLE FOR DAMAGE
DONE TO THE PM351 AS A RESULT OF IMPROPER USE OF
THIS FEATURE. IF YOU ARE NOT SURE HOW TO DO THIS COR-
RECTLY, CONTACT A QUALIFIED SERVICE TECHNICIAN.
NOTE: This unit cannot be powered by standard 48 Volt
Phantom Power supplied by mixers, phantom power adapt-
ers etc. The current (amperes) is insucient to power the
PM351. Also, any voltage greater than 16 VDC will damage
the unit.
CONNECTION
• The LINE INPUT connects to either a 1/4" stereo or mono plug.
If this plug is Tip-Ring-Sleeve stereo and you're sending a stereo
signal to this jack, select the STEREO setting of the Mono/Stereo
switch. If the plug is Tip-Sleeve mono, select the MONO setting
of the Mono/Stereo switch. The MONO setting is also the proper
selection if you are phantom powering the PM351.
• The MIC INPUT connects to either a dynamic or condenser micro-
phone via a standard XLR cable. If you are using a condenser type
mic, you will need to power it via phantom power from the mixer
which connects to the MIC THRU jack. This jack will pass the phan-
tom power from a mixer on to the microphone.
• Connect the MIC THRU jack to the mixer or snake as necessary.
• The INSTRUMENT INPUT connects to a guitar preamp output,
keyboard, or any stereo or mono instrument level signal. Again,
select stereo or mono.
• The INSTRUMENT OUTPUTS are transformer isolated and con-
verts the high impedance INSTRUMENT INPUT signal to low im-
pedance so it can be sent down a balanced line. These signals may
then be plugged into an XLR input on a mixer or snake. Note that
the level of this signal may be too high for a mixer's microphone
input - you may experience distortion. In this event, turn down
the instrument connected to the PM351 INSTRUMENT INPUT, pad
the input to the mixer's mic input, or trim down the mic input.
Connect your headphones to the proper Headphone Output.
PM351 is designed for performers who want to
monitor their own sounds, such as their vocals
and instruments, with the main mix via head-
phones. It’s very popular with drummers who
need to mix a click track with a monitor signal.
Church choir singers love the PM351 to monitor
their voices over the musicians.
PWR: LED for in-
dicating power
is applied to the
PM351.
DC IN 9 - 15 VDC: For
connection to the
external Rolls PS27
power adapter.
MIC THRU: XLR
jack paralleled
(hard-wired)
to the MIC
INPUT jack for
pass-through
to a mixer or
other micro-
phone level
input device.
LINE INPUT: 1/4”
TRS stereo jack for
connection to a line
level source such as a
mixer monitor/auxil-
iary output, cassette
player output, CD
player output etc.
HEADPHONE OUT-
PUTS: 1/4” Stereo
jack, and 1/8” stereo
jack for connection to
stereo headphones or
earphones.
MONO/STEREO
SWITCH: Selects
whether the LINE
INPUT jack is mono
or stereo.
NOTE: When in
MONO mode, the
ring of the jack
may be used to
“phantom power”
the PM351. See
the next page for
details.
LEFT/RIGHT OUTPUTS:
Transformer balanced XLR
outputs from the Instru-
ment Input.
LINE LEVEL: Adjusts the level of signal from the LINE
INPUT to the headphone mix.
MIC LEVEL: Adjusts the level of signal from the MIC
INPUT to the headphone mix.
INST. LEVEL: Adjusts the level of signal from the INST.
INPUT to the headphone mix.
MIC INPUT:
XLR balanced
jack for con-
nection to a
condenser
or dynamic
microphone.
INSTRUMENT INPUT: 1/4”
TRS stereo jack for connec-
tion to an instrument or line
level signal such as a guitar
processor, keyboard, or
instrument preamp output.
MONO/STEREO
SWITCH: Selects
whether the INST.
INPUT jack is
mono or stereo.
GROUND LIFT: Switch for
disconnecting chassis
ground from pin 1 of the
Mic Input and Mic Thru.
GROUND LIFT: Switch
for disconnecting
chassis ground from
the XLR instrument
output jacks.
GROUND LIFT
The Mic Input and Mic Thru have a ground lift switch provided to lift the XLR pin 1 from chassis ground. The XLR Instrument Outputs also have
this feature. If you experience a "hum" on the microphone or instrument outputs, lifting the ground may elliminate the problem.
Setting the Mono/Stereo switch;
If the input to the LINE INPUT or INSTRUMENT INPUT is a Tip-Ring-Sleeve stereo signal, set the Mono/Stereo jumper for stereo operation.
If the signal to the LINE INPUT or INSTRUMENT INPUT is Tip-Sleeve mono, move the switch to connect the "mono".

Especificaciones del producto

Marca: Rolls
Categoría: tapón para los oídos
Modelo: PM351

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