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Summary of Contents for BASSFACE Hammer DB1.8
- Page 1 DB1.8 1Ohm Class D Monoblock Subwoofer 12v Power Amplifier 7200w 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 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 car/alternator combination that meets necessary requirements. 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 Physical Mounting When physically securing the unit to the vehicle you MUST ensure that the chassis of the amplifier is isolated from vibration. The DB1.8 uses a sliding PCB design, which means that the circuit board of the amplifier is held in place by the heat sink. This offers great stability for such an enormous board but it means that all the vibration caused by your subwoofer system will be transferred directly into the fragile PCB if you just bolt the amp to the floor of the car.
- Page 9 Wiring Notes - Earth As you’d expect the DB1.8 uses some serious power. You need to use 2x4AWG inputs for the power and 2x4AWG inputs for the earth. Keep the earth short (aim for <12 inch), and use separate bolts (NOT self tappers!) down to the bare metal of the chassis for the connections.
- Page 10 Wiring Notes – Power Ensure you have enough power at the distribution point to drive a pair of 4AWG feeds into the board. This will mean something like a 0AWG from the car battery, capacitor bank or supplementary battery. Don’t overlook the increase in resistance over long cable runs. Installing a zero gauge power feed along the length of a vehicle is a considerable task –...
- Page 11 Wiring Notes – General Safety is crucial during these installations. Firstly, please ensure that you protect every current carrying cable with an appropriate fuse. Remember that if you use a capacitor or supplementary battery you have the potential to be back feeding the main cable up the car FROM the back so you will need to use a fuse a short distance from these storage devices as WELL as a fuse at the front of the vehicle near the battery.
- Page 12 Signal and Speaker Connections Signal input is by means of a pair of RCA connectors at the speaker output end of the amp. There is also a helpful pair of RCA outputs, which mirror the inputs, to assist with onward signal requirements.
- Page 13 Daisy Chain If you are using 2xDB1.8 in a daisy chain configuration you must switch the master/slave control on each to choose which unit will be in control. Connect the two together using an appropriate 4 pin RJ45 style cable. Plug into the Master Output terminal FROM the master and Slave Input terminal TO the Slave.
- Page 14 have because then the remote will result in over gain, dynamic compression and toasted woofers! (And I’m sure THAT isn’t covered under warranty by your woofer manufacturer, either!) Finally – the bass boost control is a parametric design which takes its centre frequency from the Bass Freq knob and applies gain as per the Bass Boost setting with a fairly wide Q.
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