The No.1 Website for Pro Audio
QSC RMX and IMG Stageline LS-280/SW
Old 17th November 2020
Here for the gear
🎧 10 years
QSC RMX and IMG Stageline LS-280/SW


Looking for some help as I am helping a friend and I'm very rusty!

He has just got a venue with 5 x ceiling mounted ceiling KEF speakers which look like they will take 100w at 8ohms

The amp was stolen from the venue but they have one of these IMG Stageline LS-280/SW line splitters to feed the speakers:

I was wondering if a QSC RMX 2450 Amp would be suitable to run this set up?
That will give 8 Ohms at 500W.

Last edited by outlaws; 17th November 2020 at 10:55 AM.. Reason: Messed up the title
Old 17th November 2020
Lives for gear
Pro Sound Guy's Avatar
I would get a multi zone amplifier.
Below is just an example.
Old 17th November 2020
Gear Maniac
The line splitter isn't useful here, it splits line level signals not speaker level.

Are all the speakers in the same room or separate rooms, and do they need separate level controls? At best a 2 channel amp is capable of powering 2 zones, if they need more zones then need more amp channels.
For those speakers an amp that generates 200-250w/ch at 4ohms and is 2 ohms stable would suffice, so an RMX850 would be plenty.
Old 17th November 2020
Here for the gear
🎧 10 years
Thanks for this - all the speakers are in the same room but some volume control between them would be nice but not essential.

I wonder what they were using the line splitter for?!
Old 17th November 2020
Gear Maniac
It goes before the power amplifiers so if they had a multi channel amp it could have been used as a volume controller for each speaker. You could still use it with a 2 ch amp of course but there is no way to get the same amount of control.
📝 Reply
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.

Slide to join now Processing…
🖨️ Show Printable Version
✉️ Email this Page
🔍 Search thread
🎙️ View mentioned gear
Forum Jump
Forum Jump