dbx® User's Group

dbx® User's Group

Flexibility, Speed and Sonic Perfection.
 
It is currently Thu Apr 24, 2014 10:19 pm

All times are UTC - 7 hours




Post new topic Reply to topic  [ 12 posts ] 
Author Message
 Post subject: px are for active speakers or can connect to power ampifier?
PostPosted: Tue Jun 17, 2008 11:47 am 
hello,i am new to this forum,i have some questions for the px unit,i want to buy it but i have 8 passive speakers connected to 2 power amplifiers , with a mixer unit.no sub speakers...

first can i use the subwoofer output to drive a power amplifier which drives 4 full-range passive speakers,if equalise the high pass filter( the manual writes Adjusts the frequency of the High Pass filter from OUT (below 20Hz) to 20KHz),in other words make the sub output a normal output,covers all the bandwith range for full-range use,

second one person which know these dbx px units tell that if i connect the px to 2 stereo power amplifiers,and make the sub out for full-range use(how i do this?)
then the unit is available to drive two power amplifiers for full-range use with passive speakers.


Top
  
 
 Post subject:
PostPosted: Tue Jun 17, 2008 11:52 am 
the specifications in the manual of px
ANALOG OUTPUTS:
Number of Outputs: 2 (Stereo) Line outputs
2 Sub outputs (mono or stereo)
Connectors: 2 Male XLR XLR line outputs

2 Male XLR Sub outputs
Type: Electronically balanced, RF filtered
Impedance: 120 Ω
Max Output Level: +20dBu

this impedance and Max Output Level is equal with the pa unit which can drive power amplifiers
6
Connectors:

Male XLR
Type:

Electronically balanced, RF filtered
Impedance:120ohm
Max Output Level: +20dBu


Top
  
 
 Post subject:
PostPosted: Tue Jun 17, 2008 11:54 am 
then with these specifications why cannot drive the px power amplifiers ,
and is only for active speakers?


Top
  
 
 Post subject:
PostPosted: Tue Jun 17, 2008 4:11 pm 
Offline

Joined: Fri Dec 29, 2006 3:11 pm
Posts: 3133
No problem running \"full range\" from the sub outs. The PX will work just fine. Generally speaking, an amp is an amp, whether it is in the speaker cabinet and in an amp rack. So, no worries.

What is your typical set-up and for what purpose do you set up your 8 speakers for?

DRA

_________________
It's all fun and games... til someone looses an eye.


FOH:
A&H MixWiz3 16:2
DriveRack 260
QSC PLX3102 (2) - Yorkville Elite E12 (4)
QSC PLX3602 - Yorkville UCS1 (2)

Monitors:
Driverack PA (2)
Yorkville NX25P (2)

DJ rack:
Q-SpandII
Driverack PA


Top
 Profile  
 
 Post subject: Re:
PostPosted: Tue Jun 17, 2008 11:15 pm 
Offline

Joined: Tue Jun 17, 2008 11:28 am
Posts: 2
thanks my friend for your reply ,i have a Numark 5000FX mixer unit with pioneer cdj-200 cd players,8 custom made pro speakers with b&c drivers,eminence and beyma drivers with custom passive crossover,2 ecler power amplifiers 2 x 750w rms 4ohm.the system is for parties and for personal use.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 18, 2008 4:04 am 
Offline

Joined: Fri Dec 29, 2006 3:11 pm
Posts: 3133
I was asking, because with that number of cabs I thought maybe you did the \"theatre in the park\" kind of stuff and had speakers all over the place. If that had been the case then the limited delay of the PX could be a problem. Carry on.

DRA

_________________
It's all fun and games... til someone looses an eye.


FOH:
A&H MixWiz3 16:2
DriveRack 260
QSC PLX3102 (2) - Yorkville Elite E12 (4)
QSC PLX3602 - Yorkville UCS1 (2)

Monitors:
Driverack PA (2)
Yorkville NX25P (2)

DJ rack:
Q-SpandII
Driverack PA


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 18, 2008 9:08 am 
Offline
User avatar

Joined: Fri Feb 17, 2006 6:01 pm
Posts: 4821
Location: Northern Minnesota
Actually as I see it the PX has no delay at all...But the xover/filter section seems to work the same as the DRPA (as far as I can tell without ever seeing one) So, you could (as Dra said) drive either a power amp IN a speaker or OUT...

Gadget

_________________
There is no surer way to ruin a good discussion than to contaminate it with facts

I'm not an everlasting fountain of information but perhaps much more an unstoppable leak

2, BLOWN Galaxy Hotspots, with MCM audio select replacement drivers!


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 18, 2008 9:11 am 
Offline

Joined: Fri Dec 29, 2006 3:11 pm
Posts: 3133
Technically, \"No Delay\" is \"Limited\". :roll:

DRA

_________________
It's all fun and games... til someone looses an eye.


FOH:
A&H MixWiz3 16:2
DriveRack 260
QSC PLX3102 (2) - Yorkville Elite E12 (4)
QSC PLX3602 - Yorkville UCS1 (2)

Monitors:
Driverack PA (2)
Yorkville NX25P (2)

DJ rack:
Q-SpandII
Driverack PA


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 18, 2008 2:54 pm 
Offline
User avatar

Joined: Fri Feb 17, 2006 6:01 pm
Posts: 4821
Location: Northern Minnesota
True... 8)

_________________
There is no surer way to ruin a good discussion than to contaminate it with facts

I'm not an everlasting fountain of information but perhaps much more an unstoppable leak

2, BLOWN Galaxy Hotspots, with MCM audio select replacement drivers!


Top
 Profile  
 
 Post subject:
PostPosted: Sun Jun 29, 2008 8:17 am 
Offline

Joined: Tue Jun 17, 2008 11:28 am
Posts: 2
thank you guys for your advice


Top
 Profile  
 
 Post subject: hi
PostPosted: Sat Aug 02, 2008 12:40 am 
Offline

Joined: Sat Aug 02, 2008 12:25 am
Posts: 1
Location: Greece
had the same wonder,cause my english is not so good, i bought the driverack px,and i was thinking powered speakers is the active speakers :? lol.But when i used dictionary i show is the excactly difference. I use it now with a crown amplifier (xls-602) and 4 electrovoice sx-100 and no problem. Is that correct or maybe i have problem in the future?Thanks from someone newbie.


Top
 Profile  
 
 Post subject:
PostPosted: Sat Aug 02, 2008 1:08 am 
Offline
User avatar

Joined: Fri Feb 17, 2006 6:01 pm
Posts: 4821
Location: Northern Minnesota
No, there's not a problem... the PX will work just fine with powered speakers or with amps and passive speakers...you could even bi-amp a couple speakers...just not bi-amp with subs.

Gadget

_________________
There is no surer way to ruin a good discussion than to contaminate it with facts

I'm not an everlasting fountain of information but perhaps much more an unstoppable leak

2, BLOWN Galaxy Hotspots, with MCM audio select replacement drivers!


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 12 posts ] 

All times are UTC - 7 hours


Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Template made by DEVPPL