I use a pair of these speakers since October 2005.
They are driven by QSC PLX1602 amp.

There is not much to say, it's just beautiful.
I think zero defects.
I just listen and listen, I do not fault these speakers. It's just perfect in her.
To polish it off, I told them two assistant subwoofers SUB 15P brand, also driven by a QSC amplifier and filtered by any active processor with CT1, also from the brand.
Here is the mega foot. Fishing, quality, depth, finesse, in short everything is there. It's high quality.

Some figures on the RF14.
- Power: 400 Watts nominal
- Impedance: 8 Ohms
- 2-way
- Bandwidth: 45 Hz to 20,000 Hz
- Sensitivity: 99 dB/1W/1m
- Dimensions: 70.5 X 44 X 39 cm
- Weight: 25 pounds
- Equipped with a HP of 38 cm and a 1 "compression to the neodymium
- Connectivity: Dual Speakon Neutrick

A few years ago, I had RF115, who were their older sisters. I was nostalgic for these speakers. So, I bought these ones.
Well, I'm not disappointed.
The price is not too high, since they are at 730 € per piece costs Sennheiser or 873.08 Euros, and the quality is top notch.
If it again, what would your eyes closed.