Lanzar HTG157 Amplifier Car Audio Bass Boost
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.
PLANNING YOUR SYSTEM
Before beginning the installation, consider the following:
- 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.
- 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.
- 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.
- 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.
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.
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).
+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.
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 THE VEHICLE’S ACCESSORY CIRCUIT THAT IS LIVE WHEN THE KEY IS “ON”.
PANEL LAYOUT
HTG157 FRONT VIEW
HTG237 / HTG257 FRONT VIEW
HTG2100D FRONT VIEW
HTG447 FRONT VIEW
HTG157 REAR VIEW
HTG237 / HTG257 REAR VIEW
HTG2100D REAR VIEW
HTG447 REAR VIEW
CONTROL FUNCTIONS
- 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.
- 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.
- SUBSONIC
- HTG157:The frequency can be adjusted between 0Hz and 80Hz.
- HTG2100D:The frequency can be adjusted between 10Hz and 60Hz.
- 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.
- 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.
- 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.
- REMOTE
- Controls the subwoofer amplifier gain, from a remote location for ease of adjustment during listening.
- LED
- Will illuminate GREEN to indicate the amplifier is on and operating normally, and will be illuminated RED if the amplifier shuts down due to short circuit, DC offset, or overheating detected by on board protection circuitry
- Auxiliary outputs
- The Auxiliary outputs offer HERTIAGE amplifiers easy, unlimited system expansion.
- Route RCA’s from the line out of the first amplifier to the line input of a second amplifier when using a single source output.
- GND
- Connect this terminal directly to the sheet metal chassis of the vehicle, using the shortest wire necessary to make this connection. Always use wire of the same gauge or larger than the (+)12 volt power wire. The chassis connection point should be scraped free of paint and dirt. Use only quality crimped and/or soldered connectors at both ends of this wire.
- Warning: Do not connect this terminal directly to the vehicle battery ground terminal or any other factory ground points.
- Remote Turn On
- This terminal turns on the amplifier when (+)12 volt is applied to it. Connect it to the remote turn on lead of the head unit or signal source.
- (+)12 Volt Power
- Connect this terminal through a FUSE or CIRCUIT BREAKER to the positive terminal of the vehicle battery or the positive terminal of an isolated audio system battery.
- Warning: Always protect this power wire by installing a fuse or circuit breaker of the appropriate size within 12 inches of the battery terminal connection.
- FUSE
- These fuses protect the amplifier against internal electrical damage and are meant to protect the amplifier only. All other power connections should be fused at the source.
- SPEAKERS
- Connect subwoofers to these terminals.
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
System Diagrams
MONO Channel System Design #1
HTG157
HTG2100D
Channel System Design #1
HTG237 / HTG257
Channel System Design #2
HTG237 / HTG257
Channel System Design #3
HTG237 / HTG257
Channel System Design #1
HTG447
Channel System Design #2
HTG447
Channel System Design #3
HTG447
TROUBLESHOOTING GUIDE
| SYMPTOMS | CHECK POINTS | CURE |
| NO SOUND | Is the power
LED illuminated? | Check fuses in amplifier.
Be sure Turn-on lead is connected |
|
AMP NOT SWITCHING ON | No power to power wire | Repair power wire or connections |
| No power to remote wire with receiver on | Check connections to radio | |
| Fuse broken | Check fuse | |
|
NO SOUND IN ONE CHANNEL | Check speaker leads | Inspect for short circuit or an open connection. |
| Check audio input leads | Reverse Left and Right
RCA inputs to determine if it is occurring before the amp. Check Tuner/Deck volume level. Clean contacts on fuse holders. | |
|
AMP TURNING OFF MEDIUM/ HIGH VOLUME | Check speaker load impedance | Be sure proper speakers are used to ensure impedance recommendations are observed. (If you use an Ohmmeter to check speaker resistance,
please remember that DC resistance and AC impedance may not be the same.) |
| HTG157 | HTG237 | HTG257 | HTG447 | HTG2100D | |
| MAXIMUM POWER OUTPUT | 2000W | 1000 | 000W | 2000W | 2400W |
| POWER OUTPUT RMS @4Oh | 1CH X 1000W | CH X 125 | CH X 500W | 4CH X 250W | 1CH X 350W |
| POWER OUTPUT RMS @2Oh | 1CH X 1500W | CH X 225 | CH X 650W | 4CH X 350W | 1CH X 800W |
| POWER OUTPUT RMS @1Oh | ON | ON | ON | CH X 1200W | |
| BRIDGED POWER MAX @4Oh | ON | CH X 1000 | CH X 2000W |
| ONE |
| THD | 0.01 | 0.01 | 0.01 | 0.01 | 0.01 |
| FREQUENCY RESPONSE -3.0dB | 45KH | 45KH | 5KHz | 50Hz | |
| HPF | 80Hz | 80Hz | 80Hz | 80Hz | NONE |
| LPF | 50-250H | 50-250H | 0-250H | 50-250Hz(12dB, 24dB) | |
| BASS BOOST(50Hz) | 0, 6, 12dB (selectable) | 0-12d | -12dB | 0, 6, 12dB (selectable) | 0-12dB |
| ADJUSTABLE SENSITIVITY RANG | .2-6 | .2-6 | .2-6 | .2-6 | .2-6V |
| INPUT IMPEDANCE(LOW LEVEL) | 20K | 20K | 20K | 20K | 20K |
| FUSE | 0A X | 25A X | 0A X | 0A x 3 | |
| DIMENSION(D x W x H inch | 12.99 X 8.81 X 2.24 | .84 X 8.81 X 2.24 | 12.99 X 8.81 X 2.24 | 14.96 X 8.81 X 2.24 | 14.96 X 8.81 X 2.24 |
FAQS
you may use a 6.5 sub or speaker as long as it is a below the wattage of this amp ( 3000 watts) at 2 to 8 ohms
As long as your impedance is wired to amps required specs for whichever output power your wanting, then your good. Just make sure to tune amp properly and don’t just have every setting cranked way up
Yes it does.. mine burnt within about a month and I never got a response are replacement .. I will never buy again. From seller or that brand.!
This amp is rated 650W RMS @ 4 Ohms
Rule of thumb is you will need anything from 2 to 6 times the system power in amplification to remain clean and still have headroom when delivering power.
Have a look at the following, or better still look at the Tramps range, even a used one may be useful.
Yes it can, assuming both subs are single voice coil. Run them both in parallel and you will have a 4 ohm load. This amp runs 650 rms at 4 ohms. You need 800 rms wattage but 650 will work.
is this amp to much power for 2 rockford fostgate 2 series
Kindly send us a message at [email protected] so we can help you out with your specific questions and concerns.
This amp is no good…mine went out and the seller fail to respond or fix the issue.. Dont buy
Check rms of sub at either 2 or 4 ohm to find out. I believe amplifier does 650 rms @4 ohm and 1500 rms @2 ohm
yes, can go as low as 2 ohms. 8 ohm just won’t be as loud as a 4 ohm or 2 ohm sub
No, it’s only one channel and it only puts out about 400-500watts. After a week I was already looking for a new amp
yes the unit can handle up to 3000 watts. You may check other details of the unit by visiting our website pyleaudio.com. Type the model number on the search box HTG157 for more details
It will make your sub’s hit harder make sure amp doesnt over heat
Yes it is, and it is a bass amp
