a large amount of heat due to being less efficient. At 2 Ohm loads, it is YOUR
responsibility to ensure the amp is kept cool. Vertical mounting, “hot boxing” or
other improper installation can cause severe damage to the amplifier. The TDOS
protection circuitry reads current draw to define protection parameters, the
algorithm it uses presumes the amplifier is used at 4 Ohm. If you are using the amp
at 2 Ohm you will need to bear in mind that the protection circuitry may not
intervene in time. That is not to say that the amplifier can not function reliably at 2
Ohm.Ohm. It just needs the appropriate cooling; if used in a confined space it needs
fans to circulate the air (especially if mounted vertically) ideally the amp needs to
be horizontal on the ground plane and be mounted to a heat conductive plate. A
regular mistake that is made is to mount the amp onto a board that has been
covered in carpet. This restricts airflow under the amplifier, limiting the amount of
convection cooling that can be achieved and insulating the amplifier underneath.
This actually builds up heat inside the amp! Avoid mounting on to carpet where
possible. possible.
Just as important is to remember that as well as the actual physical impedance
you need to consider the type of load you are going to subject your amplifier to. A
single (or pair of) 8, 10 or 12 or 15 inch subwoofer of an appropriately matched
construction and in a nicely designed enclosure will be fine run off a DB1.1 amp at
4 ohms or 2 ohms in the case of the pair (assuming proper setup) but you don’t
want to try and run eight massive heavy coned dual voice coil monster woofers off
it, even though on paper you might well have a 2 Ohm load. You have to use a bit
ofof common sense – if you need to fill a van with eight woofers like that then use
eight DB1.1’s. Big power woofers often have heavy cones, these type of woofers
can have big impedance dips and can cause clipping on transients. If you are
going to wire in 2 of these or a DVC heavy coned subwoofer, we recommend that
you wire them in series at 8 Ohm and use a higher gain setting on the amp. For
wiring instructions please see the diagram later in this manual.
Obviously, we recommend the Bass Face range of subwoofers and speakers for
ultimate compatibility. It's also worth mentioning at this point, that, running audio
into the amp, with any level of gain, but no speaker attached can and will seriously
damage your amplifier if done for long periods of time. Some amps have load
sensing and will shut the amp down if no speaker is attached, some do not. Car
amplifiers often do not.
Another danger to your amplifier is mounting it onto your bass box. While this is a Another danger to your amplifier is mounting it onto your bass box. While this is a
very popular technique, people completely overlook the fact that the bass box will
cause the internals of the amplifier to be vibrated violently and can cause
components to become disconnected from the board, or crack the board itself.
This will of course break the amplifier and would not be covered under the limited
warranty.
TimeTime to lay on some power. Connect the earth first. Then 12V power, then remote.
