Speakerplans.com Homepage
Forum Home Forum Home > Plans > New Projects Forum
  New Posts New Posts RSS Feed - 2 x 12" + 2" part 2
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

2 x 12" + 2" part 2

 Post Reply Post Reply Page  <12
Author
Message
snowflake View Drop Down
Old Croc
Old Croc


Joined: 29 December 2004
Location: Bristol
Status: Offline
Points: 3118
Post Options Post Options   Thanks (0) Thanks(0)   Quote snowflake Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2017 at 5:03pm
2.5 way crossover usually seems to be implemented by having the woofers in parallel and putting an inductor in series with one of the woofers so it has a LPF at the baffle step frequency. bass is increased by 3dB giving a flat response through the baffle step region.

alternatively you could wire the woofers in series and put a capacitor across one of them to implement the LPF. the response woudn't be flat but you would have the extra power and excursion capacity to get flat response with eq. would lose 3dB of headroom on the amp but the higher impedance load at bass frequencies would help.

the hf crossover is between the tweeter and the top woofer, rather than all three drivers. the midrange is covered by one driver rather than two, and at bass frequencies the two woofers are close enough that they act as a single source anyway.


Edited by snowflake - 20 May 2017 at 5:04pm
Back to Top
nickyburnell View Drop Down
Old Croc
Old Croc


Joined: 06 February 2005
Status: Offline
Points: 4410
Post Options Post Options   Thanks (0) Thanks(0)   Quote nickyburnell Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2017 at 5:12pm
Originally posted by snowflake snowflake wrote:

2.5 way crossover usually seems to be implemented by having the woofers in parallel and putting an inductor in series with one of the woofers so it has a LPF at the baffle step frequency. bass is increased by 3dB giving a flat response through the baffle step region.

alternatively you could wire the woofers in series and put a capacitor across one of them to implement the LPF. the response woudn't be flat but you would have the extra power and excursion capacity to get flat response with eq. would lose 3dB of headroom on the amp but the higher impedance load at bass frequencies would help.

the hf crossover is between the tweeter and the top woofer, rather than all three drivers. the midrange is covered by one driver rather than two, and at bass frequencies the two woofers are close enough that they act as a single source anyway.


Bloody marvelous explanation Clap
It's everything, not everythink!
Back to Top
 Post Reply Post Reply Page  <12

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.06
Copyright ©2001-2023 Web Wiz Ltd.

This page was generated in 0.063 seconds.