Re: RCF NX L23-a on sticks?
I think you are about right – one JLF / NXL to about 2 … maybe 3 DVA’s T4s, and it’s about 3 xT4 to every T12.
DVA T4 - 128dB peak
NXL – 133 dB peak (+5)
JFL – 133 dB peak (+5)
DVA T12 - 136 peak (+8)
The DVAs use RCF "precision" drivers just like the NXL range – when EAW and RCF were both part of Loud Technologies they used drivers from the same range / quality components in some of their premium speakers. These are excellent drivers. The weak point in the T4 is the amplifiers; they are a bit noisy, not that powerful and the sound quality is average…. but for the price I think they are great. Put 8 x DVA T4’s a side up and you can do a lot more than you can with JFLs, put 8 NXL up and you can make a serious amount of good noise.
Then there are the DVA T12’s, I have not heard them next to the JFL’s but I have heard them next to KF730’s (without focusing) - to me they sounded much better, threw much further and went louder.
I would check out the T12s, NXL23 and the 4886’s – all excellent, but will suit slightly different applications.
BTW the 730 for example, uses 2 x RCF ND1171 HF drivers and the DVA T4 use a 2 x RCF1141.
Peter
