REAR PANEL FEATURES
Volume Control
The HG3 Volume control goes from full off
(counterclockwise) to full on (clockwise).
Using music you're familiar with, adjust your
mixer inputs and outputs to 0dB, then adjust
the HG3 Volume control till the music is at a
comfortable listening level.
Audio Inputs
The rear panel of the unit allows the use of
up to four different types of audio input con-
nectors:
Input 1
allows for both Balanced (XLR, and
1/4” TRS), and Unbalanced (1/4” TS) con-
nections. The balanced connectors use the
standard industry convention of:
Pin 1 = ground,
Pin 2 = plus,
Pin 3 = minus (for XLR connectors)
and:
Tip = plus,
Ring = minus,
Sleeve = ground (for 1/4” TRS jacks)
Note: Balanced connections allows longer
cable runs and reduces the possibility of in-
duced hum and noise.
Input 1 may also be used with 1/4” TS jacks
connected for unbalanced use:
Tip = plus,
Ring / Sleeve (grounded together.)
Input 2
allows the use of unbalanced RCA
(phono-type) connections.
Note: Unbalanced cables can be used for
shorter runs (under 10 feet.)
Power Cord Connector / Fuse Holder
Use only the recommended IEC Power Cord,
and the recommended Fuse size and type. The actual
power connector/fuse type may vary, depending on in-
dividual Country Power Code Requirements.
Power On/Off Switch
The HG3 Active Monitors feature a silent “Turn
On/Off” switching circuit to prevent the possibility of
transient damage, and to eliminate the annoying thump
heard from most powered speakers.
Heat Sink Warning
The Heat Sink is designed to draw heat away from the
amplifier. It gets hot during normal operation. Keep
fingers (and other sensitive body parts) away from the
Heat Sinks. Do not touch with bare hand or body. Do
not block free air flow over the Heat Sinks.
You can connect the HG3's using any of four different connection types: Balanced XLR or 1/4” TRS - or unbal-
anced 1/4” TS or RCA Phono cables. When using unbalanced connections, do not use cables over 12' (4m) to
avoid induced hum
TRIDENT
DEVELOPMENTS
AUDIO
HG3
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
INSURE MAINS VOLTAGE AND FUSE RATING
ARE CORRECT BEFORE CONNECTING MAINS POWER.
THIS APPARATUS MUST BE EARTHED BY THE POWER CORD.
NO USER SERVICEABLE PARTS.
REFER SERVICING TO QUALIFIED PERSONNEL.
Designed and Assembled In the USA
PMI Audio US
- Gardena, CA (p) 310-323-9050
PMI AUDIO UK
- Torquay, Devon (p) 44 (0)1803 612 700
FUSE T4 250V
AC 120V 60Hz 280W
Trident Series
WARNING
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
SERIAL NO.
ON
OFF
POWER
MIN
MAX
VOLUME
10
INPUT 1
BALANCED
INPUT 2
UNBALANCED
CONNECTING THE SPEAKERS
7
