BASSFACE DB1.4 User manual

DB1.4 1Ohm Class D Monoblock
Subwoofer 12v Power Amplifier
Complete Populated PCB Assembly
2730w V1

Instruction manual

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. Modern high power audio systems can
generate voltages at the speaker similar to mains operated equipment – for some reason
everyone seems to ignore or forget this. Your wiring needs to be good to be safe. Please
remember this and take your time. Please exercise caution when setting volume levels –
powerful audio equipment can easily produce enough sound to permanently damage
hearing. Remember that audio competitors use ear protection when operating and
competing. Do remember that incorrect installation or abuse is not covered under warranty
– please make sure that your installation and any partnered product is suitable and
compatible. If you are unsure please seek qualified advice before proceeding. Always use
appropriate hand and eye protection when working with tools, and always work within your
capabilties as an installer. We offer a 12 month manufacturer warranty via your distributor
or retailer. Please retain your purchase receipt as proof of purchase. Please note that
Bassface operates a policy of continuous product development and we reserve the right to
change specification without prior notice. You can follow our process on our website by
reviewing the version history information.
Please note that we sometimes include information inside these manuals which we feel is of
potential value to the client on related subjects such as conversion charts, capacitance
values or wiring diagrams. Please feel free to copy any of this information since it is in the
public domain.

This is a replacement Printed Circuit Board for our fantastic DB1.4 Amplifier. Note that it is

designed to work with the Class D version 1 DB1.4.

Please ensure that a suitably qualified engineer installs the PCB. Gloves should be worn and
care taken when hadling FET assembly paste.

Please note that the PCB has not been burned in at the factory, and so will require a break

in period of 5 hours before use. We suggest running a modest sine wave around 50 Hz at a
low volume for this period. Do not allow the battery to go flat during break in.
Please note that once an amplifier is running there can be considerable voltage floating
around. Please do NOT run the amplifier for test until the case is back on and the unit is
fully reassembled.

We thank you for choosing Bassface and wish you every success with your repair.
Please note that it is extremely important to understand the immense heat that this board
will generate if it is not installed into its correct heatsink.
YOU CAN NOT RUN THIS BOARD WITHOUT THE ORIGINAL BASSFACE HEAT SINK.
If you attempt to use this product without installing it into the heat sink the product will
immediately destroy itself.
THERE WILL BE NO WARRANTY FOR BURNED BOARDS. EVIDENCE OF YOUR OWNERSHIP OF
A COMPATIBLE BASSFACE AMP WILL BE REQUIRED IN THE EVENT OF A WARRANTY EVENT.
We would require a photograph of your original board AND your Bassface amp case with
that board stripped out of it to show that you have done the work. We have had customers
purchasing these items who do not understand thermal loading and think they can hook
these straight up to a battery with a bit of a fan blowing on them! These clients are
generally less than honest about this situation after they have blown the product up, which
causes great embarrassment as we try to sort the problem out after. Thank you for your
understanding in this matter.