Wayne Parham Messages: 18793 Registered: January 2001
Illuminati (33rd Degree)
That's right. The only change is the value of capacitor C4. It affects the upper midrange - the overtone region, really, around 800Hz to 1.2kHz. The wrong part makes a slight droop or bump in response. If the value is larger than it's supposed to be, there's a droop. If it's too small, there's a bump. Polar response is affected too.