RAIDHO ACOUSTICS TD3.8

The midrange is handled by two 5" units. They are placed in an MTM configuration to further reduce distortion, reduce crossover points and control dispersion. The lower distortion and wideband performance will reveal every layer of music.

The massive crossover is placed at the bottom, and all the acoustic treatment inside the TD3.8 is carefully measured and combined for absolute performance. The crossovers themselves are works of art, deserving the day of light.

The TD3.8 is the best in its class. Power and magnitude combine equally with timing, phase and coherence in a full-range design that is musically authentic, real and extremely convincing. Try the TD3.8 and find out what you've been missing...

The Raidho TD Driver 

A truly unique and revolutionary drive unit! 100% developed and built in-house by Raidho. The goals were simple: no colouration and outstanding dynamic capabilities.

The motor consists of a very strong magnet (N52Neodymium) with a uniform and invisible magnetic field, together with a suspended titanium voice coil. This arrangement provides the drive unit with the world's most powerful suspended magnet system. The benefit of a suspended voice coil over the traditional suspended voice coil is that it is much more linear and has better dynamic capabilities. The result is a perfect transient response with no measurable distortion.

To further improve the strength of the magnet motor, they designed a new titanium voice coil using a square-shaped wire that eliminates air in the voice coil windings. This leaves no possibility for air gaps to interfere with the magnetic field. The entire magnetic system, as well as the basket itself, are turbine shaped which eliminates sound reflections that would otherwise taint the original sound. The solid copper on the inner pole piece very effectively minimises the inductance and linearises the impedance. The suspension parts are as soft as possible to ensure the least mechanical restriction to diaphragm movement.

Finally, a drive unit that can really keep up with the Raidho ribbon tweeter and make it all sound as one.

The legendary Raidho ribbon tweeter

The proprietary ribbon tweeter is a unique Raidho design. It is completely designed and hand-built in-house in Denmark. To be exact, it is a planar magnetic tweeter due to the tracks in the foil. The foil has a thickness of 11 microns, which means that it has a mass 50 times less compared to a conventional dome tweeter. This is due to the fact that there is no voice coil and the extremely low weight of the foil (20 milligrams). The result is that there is virtually no resonance or distortion, and the break-up point is at an incredible 82 KHz! What you hear is an incredibly clear and natural sound - all the detail in the world, but with no fatigue, no distortion and no colouration!

For the TD series, Raidho looked at how the tweeter could be improved to match the new drivers. A redesign of the magnets, waveguide and rear panel to optimise airflow helped increase sensitivity by 3 dB and reduce already low distortion levels by 35 dB. This raised the performance level even further, making this world-class tweeter even better.

Technical specifications:

Type: 3-way

Bass reflex port at the rear

1 Raidho ribbon tweeter

2 Tantalum Diamond 5" midrange woofer

2 bass woofers 8" made of Tantalum Diamond

Crossover point: 400 Hz and 2.4 kHz

Frequency range: 24Hz-50kHz+/-3d

Sensitivity: 89dB 2.83 V/m

Nominal Impedance: >6 ohms

Recommended amplification: >50 -300W

Dimensions (W x H x D): 440 x 1420 x 620 mm

Weight: 83 kg