Lanzar HTG257 User Manual

INTRODUCTION

HERTIAGE amplifiers provide high-performance sound reinforcement for your
mobile audio equipment. Its versatility enables compatibility with optional
Equalizers, Frequency Dividing Crossover Networks, and other audio processors in a
customized system. The Multi-Mode bridging capabilities allow flexibility in hosting
several different speaker configurations.
To achieve optimum performance, it is highly recommended that you read this
Owners Manual before beginning installation.

WARNING

High powered audio systems in a vehicle are capable of generating "Live Concert"
high levels of sound pressure. Continued exposure to excessively high volume
sound levels may cause hearing loss or damage. Also, operation of a motor vehicle
while listening to audio equipment at high volume levels may impair your ability to
hear external sounds such as; horns, warning signals, or emergency vehicles, thus
contributing to a potential traffic hazard. In the interest of safety, HERTIAGE
recommends listening at lower volume levels while driving.

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TABLE OF CONTENTS

PLANNING YOUR SYSTEM .................................................................

WIRING CONNECTION ........................................................................

PANEL LAYOUT ......................................................................................

CONTROL FUNCTIONS ........................................................................

SPEAKER CONNECTION MONO CHANNEL ...................................

TROUBLE SHOOTING GUIDE .............................................................

SPECIFICATION .......................................................................................

WARNING .................................................................................................

PLANNING YOUR SYSTEM

4
5
6, 7
8, 9
10-16
17
18
19

Before beginning the installation, consider the following:

1. Do you plan to add additional mobile electronics equipment in the future?
If you plan to expand your system by adding other components sometime in the
future, ensure adequate space is left and cooling requirements are met.

2. Should you use high or low level inputs?
Your Amplifier has been designed to accept Low-Level(Pre-Amp outputs from your
radio) source signal. If your radio/source is equipped with Pre-Amp outputs, it is
possible to utilize them to drive the Amplifier and the 2 front speakers. Then, use the
built-in power of your radio to drive the 2 rear speakers.

3. Are your components matched?
The RMS power rating of your speaker(s) must be equal or greater than the RMS
power rating of your amplifier. Your speaker(s) also must be 2 - 8 Ohms impedance
for stable amplifier operation. Impedance information is normally printed on the
speaker basket or magnet.

4. Where will the amplifier be installed?
Consider both the length of your leads, and routing when determining the mounting
location. It is best to run power and RCA wiring on opposite sides of the vehicle to
prevent induced noise. Pre-amp input jacks require a length of high quality shielded
male to male RCA patch cord.

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CONNECTING THE POWER

CAUTION:

AS A PRECAUTION, DISCONNECT THE POWER WIRE FROM THE BATTERY WHILE MAKING THE
POWER AND GROUND CONNECTIONS TO THE AMPLIFIER.

4/8 GAUGE(Thicker if planning for additional Amplifiers) wire is recommended for
both the power and ground wires 12 Gauge, for the remote turn-on wire 16 Gauge.
Both types are available at most Mobile Audio Dealers or Installation Shop.

(1) Ground : To Vehicle Chassis
To avoid unwanted ignition noise caused by ground loop, it is essential that the
Amplifier be grounded to a clean, bare, metal surface of the vehicle's Chassis

NOTE :

GROUND WIRE SHOULD NOT BE EXTENDED MORE THAN 3 FT. (1 METER).

(2) +12 Volt(Fused) Constant Power: To Battery (+)
Due to the power requirements of the Amplifier, this connection should be made
directly to the positive (+) terminal of battery. For safety measures, install an in-line
Fuse Holder (not included) as close to the battery positive (+) terminal as
possible with an ampere rating; not to exceed total value of fuses in Amp.

(3) Remote Turn-On Input: To remote turn-on output of Car Stereo
This Amplifier is turned "ON" remotely when the vehicle's stereo is turned "ON".

NOTE :

IF YOUR RADIO DOES NOT HAVE A +12 VOLT OUTPUT LEAD WHEN THE RADIO IS TURNED ON, THE "REMOTE"
TERMINAL ON THE AMPLIFIER CAN BE CONNECTED TO VEHICLE'S ACCESSORY CIRCUIT THAT IS LIVE WHEN THE KEY
IS "ON".

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PANEL LAYOUT

HTG157 FRONT VIEW

HTG237 / HTG257 FRONT VIEW

19 2 6 843

1 9 2 4 4 6 8

HTG2100D FRONT VIEW

HTG447 FRONT VIEW

1 9 2 3 5 5 6 7 8

1 12 24 44 46 6 8

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PANEL LAYOUT

HTG157 REAR VIEW

10 11 12

HTG237 / HTG257 REAR VIEW

10 11 12 13 14

13

14

HTG2100D REAR VIEW

HTG447 REAR VIEW

10 11 12 13

10 11 12 13

14

14

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CONTROL FUNCTIONS

1. RCA input jacks
These RCA input jacks are for use with source units that have RCA or Line level
outputs. A source unit with a minimum level of 200mV is required for proper operation.
The use of high quality twisted pair cables is recommended to decrease the possibility
of radiated noise entering the system.

2. GAIN Control
The level control will match the amplifiers sensitivity to the source units signal voltage.
The Operating range is 200mV minimum to 6V maximum.

CAUTION: Do not run the amplifier in high volume for long time, otherwise the loudspeakers will be damaged.

3. SUBSONIC
HTG157:The frequency can be adjusted between 0Hz and 80Hz.
HTG2100D:The frequency can be adjusted between 10Hz and 60Hz.

4. X-OVER
* Full pass x-over switch
When the switch is in the “Full” position, the full range is bypassed.
* Low pass x-over switch
When the switch is in the “LPF” position, frequencies lower than the low pass frequency
setting are passed.
HTG157/HTG237/HTG257/HTG447 : The frequency can be adjusted between 50Hz and 250Hz.
* High pass x-over switch
When the switch is in the “HPF” position, frequencies higher than the high pass
frequency setting are passed.
HTG237/HTG257/HTG447 : The frequency is 80Hz.

5. Low pass x-over frequency control
This control is used to select the desired low pass x-over frequency.
The frequency can be adjusted between 50Hz and 250Hz.

6. Bass BOOST
HTG237/HTG257/HTG2100D : The boost can be adjusted between 0dB to12dB.
HTG157/HTG447 : The boost can be selected among 0dB, 6dB and 12dB.

7. REMOTE
Controls the subwoofer amplifier gain, from a remote location for ease of adjustment
during listening.

Warning: Do not connect a level control knob from other manufacturers to the Remote Sub Level
Control of any amplifier. Even though the connectors fit properly, the control knob and connector
pin positions may be different and the amplifier will be damaged.

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