Instruction/ maintenance manual of the product QS4250 Quantum Audio
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MOSFET POWER AMPLIFIERS Installation Instructions / Owner's Manu al www .quantumaudio.net T el : 956-428-4263 Fax : 956-421-4513 QS1500D QS2150 QS2250 QS4150 QS4250.
1 I NTRODUCTION Congratulations on your purchase of a QUANTUM AUDIO state-of-the-art power amplifier. Your selection of a QUANTUM AUDIO product indicates a true appreciation of fine musical reproduction.
S AFETY PRECAUTIONS Fuse amplifiers power wire at the battery. Be sure to fuse the power wire within 12” of the car's battery. This will protect the car's battery in case of a short circuit between the power amplifier and battery.
F EATURES AND BENEFITS DC Offset Protection This circuit protects the output of the amplifier against DC voltage. If for some reason DC voltage is detected at the output stage, the amplifier will shut down protecting the speakers from direct current.
Line Out One set of full range line outputs have been provided for convenient connection to additional amplifiers in the system. Power Fusing This protects the amplifier against short circuits and excessive current. Remote Turn-on Automatically turns amplifier on when connected to the head unit's remote output.
M OUNTING LOCATION Before you start the installation, it will be necessary to find a mounting location for the amplifier. Find a location in which the amplifier will receive adequate ventilation in order to dissipate the heat it develops during operation.
P OWER CONNECTIONS IMPORT ANT! Before making any connections, disconnect the car’s battery until the installation is completed to avoid possible damage to the electrical system.
R L LEVEL input output line 5v .2v BASS 0dB 12dB EQ 60Hz 1.2KHz HPF 30Hz LPF 250Hz X-over full hpf lpf + - GND - + HI INPUT MONO STEREO Mode 7 S IGNAL & SPEAKER CONNECTIONS Connect the RCA output of the head unit (AM/FM cassette player, CD, or DA T) to the RCA input terminals of the amplifier.
8 R L LEVEL input output line 5v .2v BASS 0dB 12dB EQ 60Hz 1.2KHz HPF 30Hz LPF 250Hz X-over full hpf lpf + - GND - + HI INPUT MONO STEREO Mode BRIDGED SPEAKER OUTPUT FUSE L R GND REM +12V POWER INPUT POWER PROTECT 4 Ohm Speaker 4 Ohm Speaker + + - - Set the “MODE” switch to the MONO position.
9 QS4150 & QS4250 CONNECTIONS (4 CHANNEL MODE) BASS LEVEL ch3 R L ch1 ch2 ch3-4 ch1-2 LINE INPUT ch4 + - GND - + + - GND - + HI INPUT OUTPUT 5v 5v .
L L R R 10 QS4150 & QS4250 CONNECTIONS (3 CHANNEL MODE) BASS LEVEL ch3 R L ch1 ch2 ch3-4 ch1-2 LINE INPUT ch4 + - GND - + + - GND - + HI INPUT OUTPUT 5v 5v .
11 QS4150 & QS4250 CONNECTIONS (2 CHANNEL MODE) BASS LEVEL ch3 R L ch1 ch2 ch3-4 ch1-2 LINE INPUT ch4 + - GND - + + - GND - + HI INPUT OUTPUT 5v 5v .
QS1500D CONNECTIONS BASS SUB LOW BOOST SONIC PASS LEVEL OUTPUT INPUT R L 5v 0.2v 15Hz 55Hz 40Hz 0dB 12dB 150Hz POWER REMOTE CONTROL PROTECT POWER INPUT FUSE GND REM +12V + + SPEAKER OUTPUT L L L L R R Optional full range line out connection to additional amplifiers in the system.
R L LEVEL input output line 5v .2v BASS 0dB 12dB EQ 60Hz 1.2KHz HPF 30Hz LPF 250Hz X-over full hpf lpf + - GND - + HI INPUT MONO STEREO Mode TWO CHANNEL CONNECTIONS: COMMON GROUND RADIO RIGHT + RIGHT + RIGHT - RIGHT - LEFT - LEFT - LEFT + LEFT + WHITE WHITE GREEN GREEN (NOT USED) (NOT USED) GRA Y GRA Y BLACK BLACK BROWN BROWN 94.
FOUR CHANNEL CONNECTIONS: FLOATING GROUND RADIO (MOST COMMON TYPE) BASS LEVEL ch3 R L ch1 ch2 ch3-4 ch1-2 LINE INPUT ch4 + - GND - + + - GND - + HI INPUT OUTPUT 5v 5v .
BASS SUB LOW BOOST SONIC PASS LEVEL OUTPUT INPUT R L 5v 0.2v 15Hz 55Hz 40Hz 0dB 12dB 150Hz POWER REMOTE CONTROL PROTECT R EMOTE BASS CONTROL MODULE (QS1500D) Before connecting the remote, it will be necessary to find a mounting location that will be easy to access for adjustment.
5v .2v . The SOLAR series amplifiers are equipped with a built-in variable crossover network allowing you to select the crossover type (i.e. Low-Pass or High-Pass) and the desired crossover point. For example if you wish to drive a pair of subwoofers, you can select the “Low Pass” setting on the amplifier to filter out high frequencies.
T ROUBLE SHOOTING THE SYSTEM We have put together this trouble-shooting guide if you experience problems after installing the amplifier. Please keep in mind that the majority of problems incurred are caused by improper installation and not the equipment itself.
S PECIFICATIONS QS2150 QS2250 7 Size (L x W x H) 7 / 8 QS4150 11 5 11 511 ” x 9 / ” x 2 / ” 12 / ”x 9 / ” x 2 / ” 12 / ”x 9 / ” x 2 / ” 28 8 28 8 2 8 QS4250 QS1500D 31 1 71 1 Size (L x W x H) 15 / ”x 9 / ” x 2 / ” 15 / ”x 9 / ” x 2 / ” 4 2 8 8 2 8 Dynamic Power 400W 800W 800W Output Power @ 14.
Manual By www.extremeconcepts.com SOLAR AMP REV 1.17.05 LIMITED WARRANTY Quantum Audio warrants any products purchased in the U.S.A. from an authorized Quantum Audio dealer. All products are warranted to be free from defects in material and workmanship under normal use and service for a period of one (1) year.
An important point after buying a device Quantum Audio QS4250 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Quantum Audio QS4250 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Quantum Audio QS4250 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Quantum Audio QS4250 you will learn all the available features of the product, as well as information on its operation. The information that you get Quantum Audio QS4250 will certainly help you make a decision on the purchase.
If you already are a holder of Quantum Audio QS4250, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Quantum Audio QS4250.
However, one of the most important roles played by the user manual is to help in solving problems with Quantum Audio QS4250. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Quantum Audio QS4250 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
