featuring the DFR8 full range driver in an
ultra-flex cabinet design.
performance from 50Hz ~ 25kHz.
true 99 dB 1w/1m efficiency!
open sounding with no midrange shout.Uncanny
it comparable to a good electrostatic panel.Good
weight and balance make it more than usable on it's own without a sub.
steered away from single driver speakers because of the typical
tipped-up response and in-your-face sound, this is the exception you've
been looking for.
The Nibbelin Ultraflex are similar in sound
to an open baffle but have bass with good weight and tone.
In the midrange the cabinet design acts like a one-way
valve (check valve) over a large band of frequencies.
Sound inside the cabinet exits instantaneously leaving little to
no sound to reflect back to the driver.
High band frequencies are handled by foam
spheres placed inside the cabinet in a vertical line to eliminate all
parallel surfaces. The actual number of spheres can be adjusted to
The result is simply the most non-congested
sounding cabinet you've ever heard next to an open baffle. Very
nice balance, non-peaky, non-beamy, great tone and an absolutely huge
wall of sound with excellent depth and no holes.
The efficiency is conservatively rated
on this speaker making it a great choice with fine low power tube gear.
At the same time it does some pretty impressive things
with bigger amps.
Tube amp friendly with reasonable to above average performance on our 2
watt SET amplifiers but electrifying on higher power.
ON THE SOUND
that is often hard
find in most high efficiency speakers... They accurately reflect
the recording source and amplifier. Imaging is one of these
speakers strong points and they virtually disappear with good upstream
components. Musicians will appreciate the accuracy of timbre and
harmonics making it effortless to identify specific brands and models
of instruments in the recording.
- 99 dB with 1 watt at 1 meter
- 58Hz ~ 20kHz flat
- 48Hz ~ 25kHz -3dB
- 8 ohm nominal impedance
- 2 ~ 60 watts
- Max SPL 115 dB
- Size 12.5" wide, 17" deep, 42.5" high
- Ultraflex cabinet
have a support forum
many people who own our speakers who's experiences you may benefit