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Summary of Contents for BASSFACE DB4.2
- Page 1 DB4.2 4/3/2 Channel Class D Bridgeable Micro Stereo 12v Power Amplifier 280w Verified RMS Power Output Instruction manual...
- Page 2 Thank you for choosing Bassface. From the simplest connector to our top of the range amplifier - every element of these products has been designed to give you the best possible performance for your money. Please take the time to read these instructions carefully as they contain useful and important information.
- Page 3 To begin, disconnect the car battery, taking note of any required precautions suggested by...
- Page 4 (or instant!) failure of the unit. It can also destroy speakers, source units and even cause fire. On a related matter, we have been made aware of the use of Bassface products in situations where bench power supplies (or power supplies that are not a conventional car battery/alternator) are used to power our products.
- Page 5 It is also very important that a power amplifier is not used without an appropriate speaker load on each channel. The design of each amplifier is different, and so some amplifiers will tolerate running with open circuit channels, wheras some absolutely will not. It is easy to quickly damage an amplifier if channels are left open.
- Page 6 The first step when installing an amplifier is to lubricate the terminals. The reason for this is...
- Page 7 that sometimes, the plating applied to the screws can rub off slightly in the threads, causing binding. This can then result in damaged threads and/or rounded screw heads. We recommend the use of a medium thickness general purpose oil. In the UK there is a product known as "3 in 1"...
- Page 8 Once your power cable, RCA and remote lead are all securely running through the car to...
- Page 9 where you want the amp and the earth wire is fastened securely, somewhere close to the amp, you can fit the amplifier. If applicable don’t forget to fit the amplifier remote control wire and any speaker wires running forwards at the same time. The amp should be mounted on a solid surface such as a boot floor.
- Page 10 Time to lay on some power. Connect the earth first, then 12V power, then remote. Then connect in the RCA cables and you can move onto setting up sound controls on the amplifier. This description covers the principles of operation – for specific instructions refer to the set up notes for the exact model you are working with.
- Page 11 Crossover settings If you have an active crossover elsewhere in your system (such as the head unit) then you may wish to set the crossover switch on the amp to OFF/FULL RANGE. Otherwise, in most cases, this must be set to ON and the controls adjusted appropriately. For subwoofer installation and setup we recommend a LPF of about 100hz initially as an excellent starting point for most car woofers.
- Page 12 Next, for woofers, you need to learn about the subsonic filter. This is a crucial part of the setup. When the music frequency goes lower than that which the subwoofer system can reproduce with any guts you are wasting a lot of energy asking the amplifier to create those parts of the music.
- Page 13 response – as you turn up the gain the upper region of the output becomes strained and begins to distort but yet with low frequencies you are able to turn up the bass without distortion. In this case, you would go back to the beginning of the setup instructions, get the woofer playing at a modest level and then swing in some bass boost until the distortion happens at the same volume level, regardless of the music you are playing.
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