Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

PUNCH pro-sound pa system
PUNCH pro-sound pa system
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 13th January 2014, 11:43 AM   #21
chris661 is offline chris661  United Kingdom
diyAudio Member
chris661's Avatar
Join Date: Feb 2008
Location: Sheffield
I'd only go for active PA speakers if there's something to be gained over the passive variant. Active speakers need more cables running, and the extra weight can make them fun to get on stands. I also like to keep amps somewhere I can keep an eye on them.

The most basic active speakers are the same as the passive version of the cabinet, but with an amplifier bolted to the back. They'll sound no different to the passive version with an external amplifier, but, if you're lucky, they will have included a high-pass filter to protect the bass driver. Not always the case, though.
Wharfedale EVP-X12P 300W Active PA Speaker at Gear4Music.com

The next ones up will have analogue active crossovers, and two amplifiers per cabinet.
This could be a worthwhile upgrade - the crossovers are often much higher order than the passive speaker would have, so the compression driver will be better protected against mechanical overload. There's a much better chance of a low-cut filter to protect the bass driver, and maybe some basic eq.
This is still easy enough to replicate with external amplifiers, though.
Behringer: TRUTH B2031A

The active speakers that are definitely worth having are those that have full DSP control over the drivers. They compensate for driver frequency response anomalies, provide RMS power limiting (lowering long-term power input if the drivers are getting warm), independent amplifier soft-clipping, active crossovers, full low-frequency driver protection (they limit above port tuning as well as below, to keep the driver in Xmax). They basically make it so that any signal you care to feed in will not kill or overload the amplifiers or drivers. Ever.
Behringer: EUROLIVE B112D
K12 Active Loudspeaker ? QSC

  Reply With Quote


PUNCH pro-sound pa systemHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Indian PA pro here? mhtplsh PA Systems 0 6th December 2008 02:49 PM
PA sound system metaverse Subwoofers 46 7th October 2008 05:27 PM
Jukebox speaker system with punch Foxx510 Multi-Way 2 18th March 2008 06:48 AM
PA Sound system: Phase problems freedom PA Systems 4 21st September 2007 11:59 AM

New To Site? Need Help?

All times are GMT. The time now is 09:54 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio