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Summary of Contents for Quantum Audio Solar QS1500D
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Page 1: Mosfet Power Amplifiers
MOSFET POWER AMPLIFIERS Installation Instructions / Owner's Manual QS1500D QS2150 QS2250 QS4150 QS4250 Tel : 956-428-4263 Fax : 956-421-4513 www.quantumaudio.net... - Page 2 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. Whether adding to an existing system or including your Quantum amplifier in a new system, you are certain to notice immediate performance benefits.
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Page 3: S Afety Precautions
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. THIS IS A MUST, the amplifier's built-in fuse will only protect the power amplifier not the car's battery! Use high grade wire connectors. - Page 4 The Solar Series amplifiers include a built-in variable **high and low pass crossovers. The crossover features a variable frequency selection (30Hz ~ 250Hz Low Pass and 60Hz ~ 1.2kHz High Pass ) for precise high or low pass filtering. **Except QS1500D which has a 40 ~ 150Hz low pass filter.
- Page 5 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. The amplifier will turn on and off with the head unit to save current consumption.
- Page 6 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. Two popular mounting locations are in the trunk or under the seat.
- Page 7 “+12V”. Loosen screw terminal and connect barrier spade and tighten (QS1500D uses bare wire connection). Use caution to make sure no stray wire stands come in contact with surrounding terminals causing short circuits.
- Page 8 IGNAL & SPEAKER CONNECTIONS Connect the RCA output of the head unit (AM/FM cassette player, CD, or DAT) to the RCA input terminals of the amplifier. To make these connections, we recommend high quality RCA cables, which are available at your local car audio retailer. Run signal wires away from electrical wires to avoid possibility of induced noise from the car's electrical system (i.e.
- Page 9 QS2150 & QS2250 CONNECTIONS (MONO MODE) In this example we have selected LPF (Low Pass Filter) for our XOVER. Adjust the L PF (Low Pass Frequency) Set the “MODE” switch to desired crossover point for your speakers to the MONO position. line + - GND - + INPUT...
- Page 10 QS4150 & QS4250 CONNECTIONS (4 CHANNEL MODE) In this example we have selected HPF (High Pass Filter) for our XOVER. Adjust the HPF (High Pass Frequency) to desired crossover point for your speakers Set the “MODE” switch to the 4 channel position. BASS LEVEL + - GND - +...
- Page 11 QS4150 & QS4250 CONNECTIONS (3 CHANNEL MODE) Adjust the L PF (Low Pass Frequency) to desired crossover point for your subwoofer In this example we have selected HPF (High Pass Filter) for our front channels. In this example we have selected LPF (Low Pass Filter) for our bridged channel.
- Page 12 QS4150 & QS4250 CONNECTIONS (2 CHANNEL MODE) In this example we have selected LPF (Low Pass Filter) for our XOVER. Adjust the L PF (Low Pass Frequency) to desired crossover point for your speakers Set the “MODE” switch to the 2 channel position. BASS LEVEL + - GND - +...
- Page 13 QS1500D CONNECTIONS OUTPUT INPUT BASS LEVEL BOOST SONIC PASS POWER PROTECT REMOTE 5v 0.2v 0dB 12dB 15Hz 55Hz 40Hz 150Hz CONTROL Optional full range line out connection to additional amplifiers in the system. GND REM +12V FUSE SPEAKER OUTPUT POWER INPUT...
- Page 14 IGH LEVEL CONNECTIONS (OPTIONAL) High Level inputs have been included to connect the amplifier to a radio without low-level outputs (i.e. factory radio). This connection will allow you to connect directly to the speaker output of the radio with out the need of an external adapter. Determine the type of radio you have and make one of the following connections.
- Page 15 BASS LEVEL + - GND - + X-OVER full 2 3 4 12dB 60Hz 1.2KHz 30Hz 250Hz INPUT full ch1 ch2 ch3-4 ch1-2 12dB 60Hz 1.2KHz 30Hz 250Hz MODE LINE INPUT + - GND - + OUTPUT 94.7 94.7 RIGHT RIGHT GRAY GRAY...
- Page 16 150Hz 5v 0.2v CONTROL Subsonic Filter - On the QS1500D a subsonic filter has been provided to filter out unwanted subsonic bass frequencies below the audible range of the subwoofer . This feature helps to improve the amplifiers overall performance since power is not wasted reproducing frequencies beyond the speakers operating range.
- Page 17 DJUSTING THE CROSSOVER AND BASS 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”...
- Page 18 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. In addition, there are many components in the system that could cause various signal problems such as inducted electrical noise and engine noise.
- Page 19 ” x 9 / ” x 2 / ” 12 / ”x 9 / ” x 2 / ” 12 / ”x 9 / ” x 2 / ” QS4250 QS1500D Dynamic Power 1600W 1500W Output Power @ 14.4 VDC :...
- Page 20 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. This warranty applies to the original purchase only.
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