Long time amateur speaker builder here, retired and having fun. My last project was these ported 3-ways, very successful and running right now. I promised a friend I'd build him a fairly compact system, so this will be my usual 2 way but with electronic crossover and bi-amped. Here's the component list:
PRV Audio 15W1000v2 15" Professional Woofer 8 Ohm
PRV Audio D260My-B 1" Mylar Horn Compression Driver 8 Ohm
JBL Selenium HC23-25 1" Exponential Horn 100x40
Extron XPA 1002 Power Amplifiers
Behringer SUPER-X PRO CX3400 High-Precision Stereo 2-Way/3-Way Crossover
I'm using three of the Extron amps, I found a very favorable review and decided to try them. I have one in stereo for the highs (60w/ch), and one each for the lows, bridged (200w/ch). These are Class D, but the tech seems to have reached a point where that is practical. Definitely a different sound than the tubes I prefer, but very clean.
I'll be using 3cu ft enclosures, undecided whether sealed or ported. Comments and calculations welcome!
PRV Audio 15W1000v2 15" Professional Woofer 8 Ohm
PRV Audio D260My-B 1" Mylar Horn Compression Driver 8 Ohm
JBL Selenium HC23-25 1" Exponential Horn 100x40
Extron XPA 1002 Power Amplifiers
Behringer SUPER-X PRO CX3400 High-Precision Stereo 2-Way/3-Way Crossover
I'm using three of the Extron amps, I found a very favorable review and decided to try them. I have one in stereo for the highs (60w/ch), and one each for the lows, bridged (200w/ch). These are Class D, but the tech seems to have reached a point where that is practical. Definitely a different sound than the tubes I prefer, but very clean.
I'll be using 3cu ft enclosures, undecided whether sealed or ported. Comments and calculations welcome!
2 ways are fun.
Quick opinion is the woofer is .68 Qts so highly doubt 3 cubic feet is enough.
Be little bloom, is likely closer to 4 or 5 cubic likely ported below Fs or closer to 4th order.
What is your crossover frequency?
Would have to be typical 800 Hz
Dont think that PRV mylar drivers goes much below 1800 Hz
I think they have other Mylars that might cross lower.
I looked at a few months ago, go low but breakup up top.
Might consider 3 way to clean up the top end using mylars to go low.
Quick opinion is the woofer is .68 Qts so highly doubt 3 cubic feet is enough.
Be little bloom, is likely closer to 4 or 5 cubic likely ported below Fs or closer to 4th order.
What is your crossover frequency?
Would have to be typical 800 Hz
Dont think that PRV mylar drivers goes much below 1800 Hz
I think they have other Mylars that might cross lower.
I looked at a few months ago, go low but breakup up top.
Might consider 3 way to clean up the top end using mylars to go low.