Appendix A – 550A Controls

Control

Range

Default

Low Band Gain

-12dB to 12dB (2-3dB’s steps)

0dB

Low Band Frequency

50Hz,100Hz,200Hz,300Hz,400Hz

50Hz

Mid Band Gain

-12dB to 12dB(2-3dB’s steps)

0dB

Mid Band Frequency

.4kHz,.8kHz,1.5kHz,3kHz,5kHz.

1.5kHz

High Band Gain

-12dB to 12dB(2-3dB’s steps)

0dB

High Band Frequency

5kHz,7kHz,10kHz,12.5kHz,15kHz.

7kHz

Filter

Bandpass 50Hz-15kHz

Off

Low shelf/bell selector

Shelf or Bell

Shelf

High shelf/bell selector

Shelf or Bell

Shelf

Output

-18dB to 18dB

0dB

Trim

-inf to 0dB

-inf

Analog

On/Off

On

 

 

 

Phase

0deg- 180deg

0deg

Appendix B – 550B Controls

Control

Range

Default

Low Band Gain

-12dB to 12dB(2-3dB’s steps)

0dB

Low Band Frequency

30Hz,40Hz,50Hz,100Hz,200Hz,300Hz,400Hz

50Hz

Low Mid Band Gain

-12dB to 12dB(2-3dB’s steps)

0dB

Low Mid Band Frequency

75Hz,150Hz,180Hz,240Hz,500Hz,700Hz,1kHz.

500Hz

High Mid Band Gain

-12dB to 12dB(2-3dB’s steps)

0dB

High Mid Band Frequency

0.8kHz,1.5kHz,3kHz,5kHz,8kHz,10kHz,12.5kHz.

5kHz

High Band Gain

-12dB to 12dB(2-3dB’s steps)

Off

High Band Frequency

2.5kHz,5kHz,7kHz,10kHz,12.5kHz,15kHz,20kHz.

10kHz

Low shelf/bell selector

Shelf or Bell

Shelf

High shelf/bell selector

Shelf or Bell

Shelf

Output

-18dB to 18dB

0dB

Trim

-inf to 0dB

-inf

Analog

On/Off

On

 

 

 

Phase

0deg- 180deg

0deg

 

Waves API 550 User Manual

 

 

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Waves API 550 user manual Appendix A - 550A Controls