Crown GLM-200 Specifications download pdf (Page 8)

FISHMAN POCKET BLENDER

HOW TO USE THE POCKET BLENDER'S PHASE SWITCHES

1. GET THE MICROPHONE PHASE ALIGNED WITH THE SOUND SYSTEM

Determine your position on stage.

Adjust the POCKET BLENDER Master Volume to 3:00 and the TRANSDUCER channel Gain fully

counter-clockwise.

Adjust the MICROPHONE channel Volume to just below the threshold of feedback. Play a sus-

tained note or chord on your instrument while flipping the MICROPHONE channel Phase switch.

Listen to and compare each position. Find the Phase switch position that yields the least low fre-

quency (instrument cavity resonance) feedback. If you decide to move more than a few feet from

your playing position, you may need to repeat this test.

2. GET THE PICKUP IN PHASE WITH THE MICROPHONE

Having completed part one of this test, raise the TRANSDUCER channel Volume control to suit your

taste. Play a sustained note or chord on your instrument while flipping the TRANSDUCER channel

Phase switch. Listen to and compare each position. When the pickup and microphone are In

Phase, the sound is full with lots of deep bass. When Out of Phase, the sound is thinner with less

bottom end.

3. MAKE NOTE OF THE RELATIVE POSITION OF BOTH PHASE SWITCHES

Once you have the POCKET BLENDER Phase aligned, note and memorize the relative position of

both Phase switches. They will be either in the same position, or one in and one out.

When you set up in a different venue, the Phase of the house sound system and room acoustics

can contribute to different Phase relationships compared to your previous gig. You will also find that

the Phase issue depends a lot on the exact performance setting; it tends to be a bigger problem in

small rooms and less of a problem in large outdoor setups.

To determine if there is a Phase difference at a new venue, play a sustained note or chord and in-

vert both Phase switches at once. Listen to and compare each position. The proper Phase switch

position yields the least low frequency (instrument cavity resonance) feedback.

See P

age 21 for more information on Phase.

HI CUT SWITCH

Pushing this switch in rolls off the treble frequencies from the MICROPHONE channel.

This can be helpful in reducing high frequency feedback.

LO CUT SWITCH

Pushing this switch IN rolls off the bass frequencies from the MICROPHONE channel.

This can be helpful in reducing excessive boominess.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 23 24

No comments

Crown GLM-200 Specifications Page 8