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RAIDHO ACOUSTICS TD4.8
3-way column speakers.
This impressive loudspeaker delivers world-class musical experiences that captivate the listener.
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RAIDHO ACOUSTICS TD4.8
The TD4.8 is based on the MTM concept like the TD4.2. This is an even more extreme design as a true full-range loudspeaker using our in-house manufactured Tantalum Diamond drivers with no less than 6 bass and 2 midrange drivers.
Together with the upgraded TD ribbon tweeter, this impressive speaker delivers world-class musical experiences that captivate the listener with a huge soundstage that captures the atmosphere and intimacy of your recordings.
Set on large, adjustable feet with built-in decoupling, the TD4.8 will make the most of any room with impressive looks and fast, coherent, authentic sound.
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 magnetic 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, is 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
6 bass woofers 6.5" made of Tantalum Diamond
Crossover point: 400 Hz and 2.4 kHz
Frequency range: 21Hz - 50kHz +/-3dB
Sensitivity: 90dB 2.83 V/m
Nominal Impedance: 4 ohms
Recommended amplification: >50 -300W
Dimensions (W x H x D): 4435 x 1780 x 670mm
Weight: 75 kg
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