USB 1391 - Car stereo US Blaster - Free user manual and instructions

USER MANUAL USB 1391 US Blaster

- Always read the user guide before using the equipment. - Keep the user guide in a place where everyone can read it. - Use the equipment indoors and not in humid environments. - Never remove or insert a plug from or into a wall socket with wet hands. - If the plug and/or cable and/or cable input of the equipment is damaged it must be repaired by a professional. - Always take the plug out of the wall socket in the event of a thunderstorm, and also when the equipment is not being used for a while.

Never remove the plug from the power socket by pulling on its cable. - Install the equipment in such a way that sufficient cooling is possible. - Never use the appliance in the vicinity of heat sources and/or in direct sunlight.

Make sure that no small objects or liquids can get in to the appliance.

Only clean the appliance with a slightly moist dust-free cloth. Do not use cleaning products or solutions! - The appliance contains no components, other than those mentioned in the user guide that can be repaired or replaced by the user. - If the appliance is defective, it must be repaired by a US Blaster qualified repairs company. - Keep the equipment out of the reach of children. Keep the packaging safe so that, if the equipment is defective, you can send it back in its original packaging and so avoid any damage. © US Blaster Europe BV Do not carry out any repairs on the equipment yourself; doing so will invalidate the guarantee. The equipment may also not be modified; doing so will also invalidate the guarantee. The guarantee is also invalidated if accidents and damage of any form are caused as a result of improper use and/or not heeding the warnings in general as laid out in this user guide. US Blaster Europe accepts no responsibility for any personal accidents as a consequence of not following the safety instructions and warnings. This is also the case for consequential loss in any form.USB 1389 - 1390 - 1391 - 1392 Class-AB Power amplifiers INTRODUCTION Thank you for purchasing this US BLASTER Class AB full range amplifier for your car audio system. Now you own an amplifier of uncompromising design and engineering incorporating the latest advan- ced circuit technology. You will soon discover the amplifiers’ optimum sound and reliable performance. US BLASTER amplifiers are adopted by advanced craftsmanship using the highest quality components and strict quality control system. In order to provide you with long and pleasureable listening, we recommend that you have your amplifier installed by an authorized US BLASTER dealer. It will ensu- re installing your product properly and will also increase the warranty to one year. (please see the

arranty section for more details.) Please read this manual thoroughly to ensure you get the maximum benefit from this amplifier. When installed properly, this unit will provide you years of trouble-free performance. DESIGN FEATURES SMD Hi-Fi audio components. FR-4 heavy duty double side PCB. Low ESR high capacitance filter capacitor. Super noise rejection circuit. Smart protection system against overload, short circuit, overheat and low voltage. Gold plated heavyduty connectors. Intergrated high performance filters. AMPLIFIER FUNCTIONS

1. Speaker connection

• Nev er connect the speak er cables with the chassis ground. This could destory your amplifier

• Check that y our speakers are connected correctly which means plus to plus and minus to minus. We recommend speaker cable from 16 Gauge or up. Other connection ways are shown in the attach- ment.

Battery +(plus) terminal. The +(plus) 12 Volt power cable must be connected with a fuse on the bat- tery +(plus) terminal. We recommenda fuse listed on pre-installation a 12 feet copper cable with 8 Gauge thickness or up

emote terminal. The remote cable must be connected with the radio remote output terminal so that the amplifier will switch on and off automatically with the r adio. If there are two or more amplifiers connected to this antenna terminal it might be necessary to add an additional relay. Please consult y our dealer

Chassis ground terminal. The chassis ground cable must be connected v ery tight on a nearb y massi

Gain control regulates the sensitivity of the amplifier to match the signal output voltage of your sour- ce unit. The gain control is not a volume adjustment. Use high quality CD music and increase the volume of your source unit to 75%. Put the gain at the minimum and then slowly increase gain (cloc- kwise). Stop at the first sign of distortion, then lower the gain a little (counter clockwise) to achieve

lear undistorted music at the maximum level.

These RCA inputs connected with your radio preamp RCA outputs. Please use car audio RCA cables otherwise they could be disturbed. Keep these cables as short as possible. To avoid disturbances from your car electronics, please do not close the exsting car cables when you install the RCA cables. If your radio has only one preamp output, please use a suitable Y-RCA adaptor. If your radio has only one speaker output you must use a HIGH-LOW-LEVEL adaptor.

SOVER SELECTOR The switch and knob control the low-pass filter, high-pass filter and full-pass function. When set to LPF or HPF, the cut-off frequency can be adjusted by the frequency knob.

These RCA outputs connect with other amplifier inputs. This buffered output signal is easy to use for daisy-link amplifiers.

It will light up when the amplifier is switched on. It will shut down when there is a malfunction.

Indicates if the amplifier is in self-checking or malfunction.

This switch can adjust 2-channel / 4-channel input function, when at 4ch position, the amplifier works as 4-channel separate input. When at 2ch position, CH-B input will be paralleled to CH-A, CH-B input jack will be the dummy at same time. © US Blaster Europe BVUSB 1389 - 1390 - 1391 - 1392 Class-AB Power amplifiers © US Blaster Europe BVUSB 1389 - 1390 - 1391 - 1392 Class-AB Power amplifiers PRE-INSTALLATION We recommend you have the installation done by an Authorized US BLASTER dealer. Required power, ground wire and proper external fuse as below: Model Fuse Wire USB 1392 30AMP 8 Gauge USB 1391 40AMP 4-8Gauge USB 1390 40AMP 4-8Gauge USB 1389 60AMP 4-6Gauge

e recommend the fuse should be installed away less than 15 inches from the battery. The ground wire should be connected directly with the chassis of your vehicle which should be metal to metal ground point connection. The amplifier must be mounted securely at a solid, dry and low vibration surface in the trunk or passenger area. Fix the amplifier in an open-air area to insure proper heat dis- sipation. Fix the amplifier in a place where you can easily access to set the input controllers. Install all amplifier cables as far as possible from car electrical cables such as the car ignition cable. WIRING CONFIGURATION © US Blaster Europe BVUSB 1389 - 1390 - 1391 - 1392 Class-AB Power amplifiers TROUBLESHOOTING Power LED doesn`t light up

• check all fuses on the amplifier

• check main fuse near the battery

• check plus and minus battery cables

• check remote voltage Power LED is on but no sound

• check v olume control on the radio

• check GAIN regulator on the amplifier

• check RCA cables and connections

• check speaker cables and connections Bass response is low

• one speaker cable could be disconnected

• the bass control on the radio is set on low

• an active crossover unit is adjusted wrong

• the amplifier switches

• bad chassis ground connection with amplifier The amplifier switches on and off

• cable terminals and battery term inals are oxidized

• low voltage from the battery

• remote wire is connected wrong One channel has no function

• check RCA connections of this channel

• check speak er connections of this channel

• balance regulator to the r adio don’ t set in the middle

• check speakers for this channel © US Blaster Europe BVUSB 1389 - 1390 - 1391 - 1392 Class-AB Power amplifiers SPECIFICATIONS WARRANTY US BLA STER Inc. w arr ants all products not to ex ceed ONE YEAR* from the date of original purchase which installed by an authorized US BLASTER dealer. Units that are not installed by an authorized US BLA STER dealer maitain a w arr ant y not to ex ceed 90 da ys from the original purchase date. Product that displa ys abuse such as power deficiency , o

er driving the amplifier or clipping the input is requi- red to purchase a new PCB for replacement. US BLASTER obligates to repair or replace base on its own sole option for defectiv e products. This w arr ant y does not fit for equipment that has been dama

ged by accidents, negligence or misapplication or has been altered or modified in an

ay. This war- ranty applies only to the original purchaser who registers the product properly within 10 days after purchase. Ex cept as pro vided herein, US BLA STER makes no warranties or representations, express or implied, including an y w arr anty implied by law, whether for merchantability or fitness for a parti- cular purpose. DUE TO CONSTANT IMPROVEMENT, PRICES AND SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT PRIOR NOTIFICATION. © US Blaster Europe BV MODEL 4Ohm RMS power at 14.4V 2Ohm Load RMS power at 14.4V

Ohm Bridged RMS power at 14.4V Input Level High Level Input Two Channel Input mode CH-A filter mode CH-B filter mode CH-A LPF

YES HP-FULL-LP HP-FULL-LP 50~500 Hz

YES HP-FULL-LP HP-FULL-LP 50~500 Hz

YES HP-FULL-LP HP-FULL-LP 50~500 Hz

HP-FULL-LP HP-FULL-LP 50~500 V

HP-FULL-LP HP-FULL-LP 50~500 V

HP-FULL-LP HP-FULL-LP 50~500 V

OUI HP-FULL-LP HP-FULL-LP 50~500V

OUI HP-FULL-LP HP-FULL-LP 50~500V

OUI HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50~500V

HP-FULL-LP HP-FULL-LP 50 ~ 500oC

HP-FULL-LP HP-FULL-LP 50 ~ 500oC

HP-FULL-LP HP-FULL-LP 50 ~ 500oC