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Please Note, If this is the first time you are biasing the amp, we suggest leaving the amp on for about two hours
to stabilize the tubes. Recheck the bias and bias as needed.
We are often asked why we do not put an automatic biasing system in the unit. Auto-biasing is a well-known
design known by engineers for over 40 years. It is a circuit in which a series of resistors in the core of the bias
design. However, it has a significant negative impact on the performance of the unit. It will reduce power and it
will introduce distortion into the signal path. Exact Biasing will not reduce power, nor will it introduce distortion
since it merely senses the level of current going through the bias path rather than trying to alter and control it.
Although Exact Biasing requires a minimum effort, the dividends of power and sound performance are worth the
investment.
Note
: The two most common errors in biasing the Black Ice Audio amplifier are:
1. Turning the bias screws the wrong way.
2. Attempting to "tweak" the bias levels by ear without using the meter on the amplifier which reduces optimum
performance.
Servicing
Because of its careful design and exacting standards of manufacture, your Fusion F35 amplifier should normally
require only minimal service to maintain its high level of performance.
CAUTION:
The Fusion F35 amplifier contains sufficient levels of voltage and current to be lethal. Do not tamper
with a component or part inside the unit. Even with the power turned off, a charge remains in the energy storage
capacitors for some time. Refer any needed service to your authorized Black Ice Audio dealer or other qualified
technician.
Questions regarding your amplifier may be referred to the Customer Service Department of Black Ice Audio:
(301) 953-2014.
We hope you enjoy your musical experience.