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Connections, Controls and Indicators

Rear Panel

Note: 120V and 230V units have different types of output

connectors on the rear panel.

Input Section:

There are two parallel input connectors (one female XLR and one

1/4” jack) per channel. Either can be used as an input or as a link to
chain amplifiers.

XLR Input Jacks (11, 14):

 electronically balanced inputs accept a

standard XLR male connector. Pin 1 = shield/ground, pin 2 = hot or
positive (+) and pin 3 = cold or negative (-).

1/4" Input Jacks (12, 13):

  accept a balanced as well as an unbalanced

line level signal. The unbalanced line uses a standard tip-sleeve
connection. The tip is positive and the sleeve is negative/ground. The
balanced line uses a tip-ring-sleeve connection.  Tip = hot or positive
(+), ring = cold or negative (-), and sleeve = shield/ground.

Signal Ground Lift Switch (15)

 is used to lift the balanced input

connectors’ ground/shield from the amplifier’s ground. When the
signal ground is lifted, the sound source disconnects from the
amplifier’s ground preventing ground loops which can generate hum
and noise. See the Signal Ground Lift Switch Instructions for more
detail.

AC Power Section:

Fuse (7): 

replace fuse with those of proper type and rating.

AC Cord Outlet (6)

 is used to attach the power cord to the unit.

Signal Processing Section:

Disconnect the unit from the AC power source before making any

connections.

Crossover Switch (3):

 Use the crossover

switch to set the crossover frequency
between the subwoofer and the satellite
channels (Channels A and B) at 120 Hz or
180 Hz. Or you can set the crossover
switch to FULL RANGE if you do not wish
to use a subwoofer (the full range signal
will then go to the satellite channels).

Low Frequency Boost Switch (4):

 The LF Boost Switch can be used to

optimize the performance of the subwoofer. The LF boost effect uses
specialized filter circuitry, including a subsonic filter, to cut off
subsonic frequencies which keeps the subwoofer from wasting
available energy. The filter also provides an
op3 dB or +6 dB boost at 40 Hz which
is suitable for most subwoofers. The circuitry
optimizes the performance of the
subwoofer by focusing the signal’s energy
to match the subwoofer’s characteristics.
Set the switch to be FLAT, +3 dB or +6
dB based on your subwoofer and your
experience.

NOTE: The LF Boost settings only effect the subwoofer

channel and will not effect the satellite channels.

Line Outputs (1, 2, 5):

 the amplifier has quasi balanced post crossover

line outputs. The line outputs connectors are 1/4” TRS and can be
used to connect to additional amplifiers (optional).

Output Section:

Speaker Outputs

:

Pay close attention to polarity (shown on the back of the unit) when

connecting your speakers. Connecting your speaker systems using the
wrong polarity will not damage your speakers, but it will impact the
quality of the sound (lack of bass and incorrect stereo image).

Speaker Outputs for 120V Unit (8, 9, 10):

 the speaker output

connectors are 5-way binding posts that will accept standard banana
plugs, spade lugs or bare wire. Make sure that all the connections are
clean when using bare wire connections. If any strands of wire from

Introduction

Congratulations on purchasing a Gemini XPM-3000 Power Amplifier.

This state of the art power amplifier includes the latest features and is
backed by a five year limited warranty. Prior to use, we suggest that you
carefully read all the instructions.

Features

MOSFET output stage technology for the finest sound quality and
reliability

3 Channel Operation: 2 Satellite Channels (Channels A and B) and 1
Subwoofer Channel

Full range operation mode for set up without subwoofer(s)

2-way Linkwitz-Riley crossover with switchable crossover frequency
for flexible set up of subwoofer and satellite channels

Switchable low frequency boost on the subwoofer channel optimizes
subwoofer performance

Stable operation of subwoofer channel down to a 2 Ohm load

Post crossover line level outputs for chaining additional subwoofers
and satellite speakers

High output power to drive professional loudspeakers without clipping

Oversized toroidal transformer, filter and heatsinks for better low end,
transparency and stability

Comprehensive protection circuitry (short, overheat, DC, subsonic
and RF filters, turn-on delay) with high current speaker protection
relays

True clip LEDs for better control

Signal ground lift switch eliminates hum from connection loops

Flexible input configuration with active balanced inputs; additional
input connectors to chain amps

Outputs: 5-way binding posts in 120V; Neutrik Speakon connectors in
230V

2 parallel 5-way binding posts on the subwoofer output (in 120V only)
allows for easy set up with dual subwoofers

Efficient dual aluminum extrusion heatsink design for thermal stability
and reliability

Front-to-Rear airflow with 2 speed dual fan control

Turn-on In-rush current limiting circuitry

Compact 2U well balanced enclosure

Steel reinforced chassis construction for durability and longevity

Cautions

Read all  operating  instructions before using this equipment.

To   reduce   the   risk  of  electrical   shock, do not  open the unit. There
are NO USER REPLACEABLE PARTS INSIDE.  Please contact the
Gemini Service Department or your authorized dealer to speak to a
qualified service technician.

Be sure to allow adequate front and rear ventilation to avoid possible
heat damage to your equipment.

Be sure that AC power is OFF and all level controls are set to MINIMUM
before making connections. This will eliminate any chance of
unexpected, loud audio transients that could damage your speaker
systems.

Be sure that AC power is OFF when changing modes of operation and
when changing the position of the ground lift switch.

DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. Operators of
electronic equipment should in no way be in contact with water.

When connecting to AC power line be sure you haven’t lost the ground
connection by using an adapter or extension cord without a 3 prong plug.

DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANY
CONTROLS OR SWITCHES.

Содержание XPM-3000

Страница 1: ... 1 OPERATIONS MANUAL BEDIENUNGSHANDBUCH MANUAL DEL OPERADOR MANUEL D INSTRUCTIONS XPM 3000 POWER AMPLIFIER STEREO VERSTÄRKER AMPLIFICADOR DE PODER ESTEREO AMPLIFICATEUR DE PUISSANCE STÉRÉOV ...

Страница 2: ...13 6 14 15 8 9 10 20 22 23 21 1 2 3 4 5 8 9 10 18 16 17 19 11 7 12 13 6 14 15 1 2 3 4 5 18 16 17 18 16 17 120V 230V Gemini Sound Products Corp 120 Clover Place Edison NJ 08818 USA Tel 732 738 9003 Fax 732 738 9006 ...

Страница 3: ... 3 120V ...

Страница 4: ... 4 230V ...

Страница 5: ...r output connectors are 5 way binding posts that will accept standard banana plugs spade lugs or bare wire Make sure that all the connections are clean when using bare wire connections If any strands of wire from Introduction Congratulations on purchasing a Gemini XPM 3000 Power Amplifier This state of the art power amplifier includes the latest features and is backed by a five year limited warran...

Страница 6: ...0 21 establish the input levels required for each channel Operating Instructions THE AMPLIFIER S POWER MUST BE TURNED OFF WHEN CHANGING SETTINGS Using the Amplifier With Subwoofer s and Satellite Speakers The XPM 3000 has two channels for stereo operation and a common subwoofer channel The amplifier has a built in crossover to separate the input signal between the stereo satellite channels and the...

Страница 7: ...OUND LIFT SWITCH in the ground position if the noise level remains the same in either position CAUTION DO NOT TERMINATE THE AC GROUND ON THE POWER AMPLIFIER IN ANY WAY TERMINATION OF THE AC GROUND CAN BE HAZARDOUS Specifications Output Power EIA 1kHz 1 THD 100 Hz 1 THD for the subwoofer channel Note the power for channels A and B is given as per channel both channels driven Frequency Response 3 Ch...

Страница 8: ... UNIFICATION PROCEDURES DO NOT ATTEMPT THEM WITHOUT FIRST CONSULTING YOUR DEALER OR A QUALIFIED SOUND TECHNICIAN FOR MORE INFORMATION ON GROUNDING IMPROPERLY DONE SUCH PROCEDURES CAN POSE A SAFETY AND OR FIRE HAZARD SOUNDISDISTORTED DISTORTIONOCCURRINGINSOURCEDEVICE INPUTLEVELISSETTOOHIGH CHECK CLIP INDICATORS ON INPUT SOURCE DEVICES AND RESET LEVELS IF NECESSARY TO ELIMINATE DISTORTION ADJUST LEV...

Страница 9: ...ice and does not represent a commitment on the part of the vendor Gemini Sound Products Corp shall not be liable for any loss or damage whatsoever arising from the use of information or any error contained in this manual No part of this manual may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic electrical mechanical optical chemical including photoc...

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