SIGNAL SHAPE – The SHUTTLE MAX 6.0 is equipped with 3 SIGNAL SHAPE circuits, each with a level control to adjust the amount of level the tone shaping circuit produces.
L.F. BOOST – This filter adds low frequency peaking gain in the
MID SCOOP
H.F. ATTACK
LED indicators are provided to visually show when each filter is engaged. Each filter Q (bandwidth) is optimized for its particular function and is different for each filter. These functions are also
MASTER VOLUME – The MASTER VOLUME control adjusts the overall volume of the amplifier and the effects return. Typically, best results are obtained when this control is operated between the 9:00 and 3:00 o’clock positions.
OUTPUT LIMITER – The SHUTTLE MAX 6.0 contains an internal power amplifier “Soft Clip” LIMITER. This LIMITER allows simulation of the output stage saturation of a tube power amp output stage as the amplifier nears it maximum power. The LIMITER is a compound
The amber output “LIMIT” LED shows limiting action for the first 6dB above the illumination threshold and then indi- cates power amplifier clipping as the power amplifier gradually transitions into gentle clipping.
NOTE: In order to achieve full power from the amplifier the LIMIT LED may be flashing regularly. If the LED is illumi- nated constantly then the amplifier output could be clipping. With our unique LIMITER circuit you may not hear drastic “harsh” distortion but it is recommended to keep the LIMIT LED away from the “constantly on” state.
MASTER SECTION STATUS INDICATORS -
•The “POWER” light indicates that the amplifier is ON and the low voltage power supplies are active.
•The red “PROTECT” LED indicates that the amp is in “PROTECT” mode. This LED may flash during power
•The blue “SIGNAL” LED indicates that the power amplifier has received signal (over several watts output) and is performing properly.
•The Amber “LIMIT” LED indicates that the power amp has reached maximum power and/or the limiter
threshold has been crossed. Under high output conditions it is normal that this LED will light with the strongest pulses of the signal. Driving hard beyond this point will cause the amplifier to gradually begin clipping.