How much would narrower baffle affect HF response? (1 Viewer)

[Pete Mazz]

I just tested a new kit I picked up. The original plans had a 9 1/2" baffle with a 1 1/2" rad on one corner and a 3/4" rad on the other. Throwing together a test box of 8 1/2" width with square corners yielded a response that was 10 dB down at 1.2 kHz to 10 kHz. Would the difference in baffle width account for this much attenuation?

Pete

 

[ThomasW]

Pete

What's the XO point and does it have baffle step compensation?

How did you measure, MLS, Sine wave, Nearfield, GP?

 

[Jim A. Banville]

If the calcualtions are correct, I'd say something else is wrong.

 

[Pete Mazz]

I think I figured it out. When I went to put the second Xover together, to triple check myself, I noticed a resistor that was supposed to be 5 ohm, marked .5 ohm. Checking the resistor confirmed it. A call to PE and they are sending the replacements. Right part#, wrong part! You think Mills would mark a .5 ohm as 0.5 ohm, Oh well.

Will let you know how it goes.

Pete