Legacy has utilized the latest electronic technologies in order to deliver a superb listening experience. This innovative system has been designed utilizing a 12 V DC Negative Ground power supply. The LEGACY Blue Diamond Series amps incorporate two to eight MOSFETS in the different models. This design produces enough available voltage to supply the main amplifier sections, and still have a huge amount of reserve voltage for peak “high demand” situations. The Legacy line has been designed to ensu

• Before making or breaking power connections in your system, disconnect the vehicle battery. Confirm that your head unit or other equipment is turned off while connecting the input jacks and speaker terminals. • If you need to replace the power fuse, only replace it with a fuse identical to that supplied with the system. Using a fuse of a different type or rating may result in damage to your system which isn’t covered by the manufacturer’s warranty. Setting Up and Turning On Your New Amplifier

When determining a suitable location in your vehicle for the amp, please remember that it is a high-power electronic device capable of generating high heat. For this reason, alap chaase a lacalian in JIIur vehicle which hIS law libralian,adequale IInliiatian,a minimum aI dust,and na maisture. Be sure to mount the amp in such a manner as to allow reasonable airtlow over the cooling fins. Mark the lacatian far the maunling screw hales by positioning the amp where you wish to install it and use a s

Should this occur, the PROTECT LED will be illuminated. At that time, it is important that you check to determine what has caused the protection circuitry to become activated. If the amp shut off because of a thermal overload, allow it to cool down before attempting to restart. If the shutdown occured because of an input overload, or speaker short circuit, be sure to correct these conditions before attempting to restart the amp. To reset the amp, turn the REMOTE power off and on again. 13 Remote

Crossover Mode Switch Input Level Control Use this control to match the output of the head unit to the amplifier. If distortion is present, reduce the setting of this control. Power Supply Terminals Protects the amplifier as well as the automobile electrical system from short circuit conditions. Fuse These terminals are 14K Gold plated for high conductivity and minimum impedance loss. The terminals face upwards for easy wiring in tight situations. Speaker Terminals Plug in the Remote Bass Boost

LA738 LA838 LA938 FOR YOUR PROTECTION Completely and immediately mail the Product Registration Card so that we may contact you directly in the event a safety notification is issued in accordance with the 1972 Consumer LA1038 Product Safety Act, or for other reasons Legacy may deem necessary. LA1438 LA1838 TECHNICAL SUPPORT HOTLINE Our technical department will gladly answer any questions LA2038 you may have about our products. They cannot, howevertell you the status of a repair, or handle other

These quality audio products are designed and engineered to afford you years of uncompromised musical service. Legacy has utilized the latest electronic technologies in order to deliver a superb listening experience. This innovative system has been designed utilizing a 12 V DC Negative Ground power supply. The LEGACY Series amps incorporate two to eight MOSFETS in the different models. This design produces enough available voltage to supply the main amplifier sections, and still have a huge amou

• Check that remote DC terminal has at least +12v DC. • Check that there is battery power on the + terminal. • Check all fuses. • Check that Protection LED is not lit. If it is lit, shut off amplifier briefly and then repower it. High hiss or engine noise (alternator whine) inspeakers. • Disconnect all RCA inputs to the amplifier(s) – if hiss/noise disappears, then plug in the component driving the amplifier and unplug its inputs. If hiss/noise disappears, go on until the faulty/noisy component

Try to drive as high a signal level from the head unit as possible. Protection LED comes on when the amplifier ispowered up. • Check for shorts on speaker leads. • Check that the volume control on the head unit is turned down low. • Remove speaker leads, and reset the amplifier. If the Protection LED still comes on, then the amplifier is faulty. Amplifier(s) gets very hot. • Check that the minimum speaker impedance for that model is correct. • Check for speaker shorts. • Check that there is good

2. Adjust the amplifier LEVEL control(s) to an average listening position. 3. Turn the head unit volume all the way down, and listen for background noise. 4. Start your vehicle, and again, listen for background noise. 5. By fine tuning the LEVEL control(s), you can reduce background and engine noise, if present. These adjustments should only be made once. After that, use the head unit volume control to adjust the system volume, not the LEVEL control(s). CAUTION: Never turn the LEVEL control(s) u