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JA2806
JA5006
JA6006 - JA6012
State of the art soft dome tweeter with heavy aluminium faceplate. Magnetic oil in magnet gap for increased power handling and easy low order filter construction. Extensive care taken with regard to damping from special construction of non-resonant rear chamber providing a small transmission line for absorbing rear energy.

The JA-5006 provides a powerful 5” midbass driver fitted with a polypropylene cone and a massive 75 mm voice coil ensuring high power handling. A thoroughly vented spider chassis provides free air ventilation and absence of compression. The driver may be used in small 2-way monitors or as midrange driver in larger 3-way systems.

The JA-6006 is a powerful 6” midbass driver fitted with a polypropylene cone and a massive 75 mm voice coil ensuring high power handling. A thoroughly vented spider chassis provides free air ventilation and absence of compression.
The driver may be used in 2-way monitors of modest size or as a 2-way floorstander in a 16-22 litres enclosure.

JA6012 is a high-ohmic version of JA6006, expecially produced for d'Appolito and 2 1/2-way application for real-worl amplifiers.
JA8008
JDT1024
The JA8008 HES driver is a specialty product, designed for people who enjoy low-wattage, high-class valve amplification, but it can obviously be connected to any high-quality system, being valves or solid state. This extended-range 8” driver has numerous applications from high-efficiency 2-way TQWT designs to midrange driver in high-efficiency 3-way systems supplemented by suitable 12-15 inch bass drivers.
Jantzen 1" diamond tweeter.

1" pure diamond dome tweeter, dome made of CVD diamond (Chemical Vapour Deposition)

Double magnet system delivers a perfect focused magnetic field in the air gap with maximum field density.
Additional rear magnetic shield cap - no harmful influences to nearby TV-sets.
Good damping and cooling of the voice coil due to low-viscous ferrofluid.
Very sturdy and low-resonant aluminum baffle.
Extreme diaphanous protection grill in front of the dome avoids damages.
Super lightweight and thin (about only 50μm thickness) diamond dome.
Copper cap above magnetic pole piece abates eddy-currents.
Dextrous damped pole piece drilling and rear cavity gives a low and well damped resonance frequency.
Very wide usable frequency range with super-low distortions even at high sound pressure levels.


We have the following measurement results for our Jantzen Diamond Tweeter
JDT-1024:

SPL:  91,5dBSPL  @ 2KHz
and above
fs:      940Hz
Rdc:  4,9 Ohms
Z:      6 Ohms (nominal)
Qm:  1,29
Qe:   2,11
Qt:    0,8

Our 1st OEM reference

Why diamond as dome material?

JA2806 - Info
Download JA8008 Spec.pdf