RAAL, 70-10D with Amorphous Core Flat foil ribbon tweeter.
Size matters. With a surface of 21 sq. cm (3.25 in. sq.), super-light 22 mg flat foil, deflector pads, homogeneous magnetic field, it represents the finest in today’s mid-high transducer design. Many other details in its construction serve as tools to achieve the flattest possible frequency response and fastest settling time. It’s fast and accurate. The main difference is that, contrary to other ribbon drivers, it recreates the spherical sound wave, although it is a straight line source. So, the high-frequency range is not emphasized and “beamed” to a very narrow vertical space.
Recently, we finished the development of Amorphous C-cores application in our ribbons. Some years ago, we were the first to introduce a large gap approach in building ribbon transformers and now we are the first to use AMCC’s in ribbons for absolutely uncompressed high power transient transfer and, at the same time, even further improving already the best low-level performance in the world today, by decreasing the width of hysteresis compared to HF ferrite cores. For direct-coupled tube SE-ribbon, we successfully developed a 175:1 ratio, -3dB at 120kHz Amorphous C-core transformers that can carry DC idle current of SET. Impedance conversion is about 30000:1, bringing the 0.1 Ohm ribbon up to 3kOhm, good for plate loading of most triode amps in HF.
True ribbon drivers are well known by their ability of exceptionally fine rendering of the details in music material. They work in a different way than conventional dome or ring HF drivers, relieved of all the excess baggage, so to speak, and they do their job better than anything else, regardless of the price tag. No domes, rings, suspensions, coil formers, glues, damping material, not even the lacquer insulation on the wire of the coil. No heavy plastic carrier foils, like in cheap quasi-ribbons. Only 0.004 mm (0.00016 in.) thick aluminum foil, immersed in a strong magnetic field. It serves as all the moving parts mentioned above.
Tremendous acceleration of air is available with RAAL 70-10, more than 13000 G, and in less than 200 microseconds after, that air is stopped. That brutal controlling force combined with the smoothest response available and bandwidth of 100 kHz, can ensure you that the weak link in any system equipped with it, will not be the HF driver.
It will show the differences between the electronics or cables without any effort by the listener. The better the electronics chain before it, the better the sound will be. The sound? Well, some people still can’t believe what they can hear with it, for the first time ever, in their well-known music material. That comes as standard with, pretty much, all true ribbons, but the effortless recreation of real dynamics, and amazingly high SPL levels for a ribbon of that size, was not known before RAAL 70-10. It doesn’t get intimidated by the big amplifiers. If you have clean power, feed it to the little fellow, and you will be stunned by all the music you have, presented in another dimension of reality. If you don’t have power, and/or you don’t like it, then discover the abundance of detail and true color of any instrument played in a brand new, engaging manner. Yes, the best quality of HF region and real, breathing, micro, and macro dynamics gives a totally new sense of what the musician(s) wanted to say. It will make you forget that the system is in front of you. The music will come to life.
– Special FLATFOIL® pure Aluminium ribbon
– Special SYMMLEAD® low inductance signal path
– Special EQUAFIELD® NdFeB magnetic structure
– Special “non-wave-guide” INOX front plate
– Super-fast settling time
– Flat frequency response
– Low nonlinear distortion
– High signal power handling
– Highest reliability