Fractal Audio X-LOAD LB-2, Руководство пользователя

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INTRODUCTION
The X-LOAD LB-2 Reactive Load Box is a high-quality passive load box from Fractal Audio Systems.
It offers a range of great features including front-panel output level control, a voicing switch,
speaker thru capability, and both active and passive DI outputs. We designed the LB-2 because
other reactive load boxes did not meet our needs. We needed a device that would react and interact
with an amp like a real speaker. It needed to be ideal for both live and studio applications, and
above all else, it needed to sound great. Mission accomplished in the X-LOAD LB-2!
When considering the X-Load LB-2, it is important to understand the difference between speaker
load simulation and speaker tone simulation. A guitar speaker cabinet has two significant effects
on your overall tone. The first is caused by interaction between the speaker and your amp. The
speaker and cabinet dynamically affect the sound of the amp because of a reactive impedance
curve . The LB-2 accurately emulates this effect using our proprietary Dynamic Impedance™
Technology, which changes the impedence of the load depending on the power levels of the
connected amplifier. This causes the amp to interact with the LB-2 it as it would a real speaker. The
result is unprecedented realism that other reactive load devices cannot match.
The LB-2 also features a Voicing Switch for different load options based on the behavior
characteristics of real speakers. This switch causes your amplifier to behave differently—as if it
were connected either to an iconic “UK” or “US” speaker load.
The second effect a speaker has on overall tone is caused by the distinctive sound of the speaker
itself. Guitar speakers are limited in comparison to full range speakers, with typical bandwidth in
the range of 75 Hz — 5 kHz. The LB-2 X-Load does not simulate speaker tone, but this is by design
so you can “re-cab” using the sophisticated speaker tone simulations in the Fractal Audio Axe-Fx,
AX8, Cab-Lab, or 3rd party products.
For maximum versatility, the X-Load LB-2 can be used with or without a connected speaker. This
allows you to operate at normal levels or silently. When no speaker is connected, the LB-2 safely
loads your amp as though it were connected to a speaker cab. The X-Load LB-2 is built for years of
reliable use and will satisfy even the most demanding players, producers and engineers both today
and tomorrow, as speaker tone simulation technology continues to evolve.
WARNINGS
The LB-2 is an 8-ohm (8Ω) device. Be sure to connect its Amp In jack to the proper output on your
amplifier to avoid damage. Mismatching impedance can cause damage to your amp.
The maximum power rating of the LB-2 is 100W. Do not connect any amplifier that is rated greater
than 100W to the LB-2 as this can damage the unit and/or the amp.
Do not block the front vents or rear fan inlet. Do not disconnect the internal fan. The fan runs when
the applied power exceeds 30W and is required to keep the heatsink within operating limits.
Running your amp at high output levels causes extreme stress on its power tubes and transformers
and can result in damage to your amp and/or the LB-2. Old amps, vintage amps and lower quality
amps are especially susceptible to thermal overstress due to component degradation and/or the
use of low-quality components. Fractal Audio Systems, LLC is not responsible for damage that may
occur through use of the LB-2.