Surely Stereo Mania memorized Genetic right product from the manufacturer. Brand is rarely offer their products or package of a component set of speakers which usually contains 2 pairs of woofers, tweeters and 2 pairs 2 pairs of passive crossover. Genetic most offer Raw Driver or stand alone driver, let alone a pair or a pair of midrange woofer alone.
This strategy is very useful for Stereo Mania is like marrying a variety of products into a system. In addition to the workshop to be more flexible in determining the tastes of consumers liking. This time Genetic released its newest product in the form of AMT tweeter GT named MT-806B. Not only that, the Genetic try to combine it with a midbass made from Titanium.
Air Motion Transformer MT GT-806B
The third time Autostereo recall reviewing AMT type tweeter. as we know, Air Motion Transformer has advantages capable of delivering high-frequency speakers like a ribbon, but is offset by the lower limit of the low frequency response.
Genetic GT series MT-806B boned spherical with a diameter of 8.5 cm. AMT tweeter from zoom is included into the ranks with good quality control, matte black finish looks neat and smooth. Similarly, the tweeter housing or face plate is fairly slick from start front to rear.
Neither of the diameter and mounting depth, MT-806B GT still fit when planted on the dashboard, of course, will not hinder the driver's visibility. The front looks like a plastic yellow mica or similar corrugated polyethylene, this membrane or diaphragm-assisted magnetic field causing the AMT voice. The weight of a lightweight material, making it capable of producing high extended the dynamic.
MT GT-806B Measurement
Usually if the Stereo Lab measurements for DC voice coil, the resulting graph is always flat, so that impedance and Fs can have a value below 20 Hz. Because the theory of this type rely tweeters magnetic field capable of causing power to the air pump, so that the resulting inductance is minimal.
Unlike the GT MT-806B, although the average yield sinusoidal graph, the value of Fs entrenched in numbers and also issued a 1743 Hz Q value is almost non-existent. While the impedance of 2.9 ohms. When measuring frequency response, Stereo Lab did a hi-pass with 47 mf capacitor size, or cutting around 900 Hz.
The resulting graph is quite good. When viewed under the limit GT MT-506B is in the range of 2000 Hz. Somewhat off the mark with a theory about the AMT, it is able to penetrate Genetic fairly low frequency. Graphs from 2kHz to 11kHz looks linear and flat, subsequently experienced a fairly high peak.
Mid Woofer TN-65B
In a written specification of the cone material is titanium the mid woofers, although at first glance it does not look that conical metal interconnect using Genetic TN-65B OEM cone basic covered honey comb grill that can not be opened.
Seen from the figure, this midwoofer looks solid. Frame made of reinforced alloy small speakers so that structures such as motors and diaphragm little flexibility to be seen. This design is also expected due to the movement of the speaker desires will be free to come out, moreover, there is a hole or pole pieces on the stern of a large enough diameter ferrite magnet.
From the sidelines of the front plate visible voice coil diameter is quite large, over-hung systems in use which usually has a sloping Q and Qts below 0.5, some experts recommend a car audio woofer with this specification.
Mid Woofer TN-65B @ Lab
Because covered with grill, Stereo Lab conduct volume measurements with known methods. Stereo prediction turned out not to deviate lab, Qes and Qts are under 0.5 or even fairly low at around 0.2 figure.
Fs was also fairly low at 42 Hz and after being given a load down to 33 Hz. Good value for a woofer. Furthermore when looking dBSPL or sensitivity produced by the woofer, its value is high, namely 92.2 dB. This value is likely achieved due to the lightweight speaker diaphragm and the use of the voice coil and the magnetic field is large.
KWhen looking at the frequency response, stereo lab set of frequency range 50 Hz to 6 kHz. TN-65B are a few roll off and peak for the frequency range, but with a powerful tool, it can be easily fixed.
Genetic TN-65B & MT GT-806B Sound Harmonious
The sound of reasonably harmonious combination between the midbass and tweeter TN-65B-806B MT GT, while stereo sound lab testing to make a system sound. To prevent baffle diffraction to AMT, the lab made a symmetrical holder. And for midbass, implanted in the box with the size of 23 liters.
For this test, Autostereo Lab perform cutting pass for hi frequency tweeter at 5 kHz, while the midbass at 3 kHz with a slope of 12 dB. By measuring devices and hearing, this cutting feels right. Some EQ adjustments made to pursue a frequency that appears in Clio average.
Shortly play CD IASCA, from the first track to track to-7 re-setting is done. And the results are quite satisfactory, from top to bottom frequency sound balance. The characters presented by these speakers was the rapid transient so that makes the music feel more alive. For some instruments, the voice becomes lighter with a fast dynamic.
System Support
Head unit Clarion HXD-2
Amplifier Gramond GC-X
Amplifier Crescendo Sonata 4
Speaker 2 way Morel Virtus
Midrange Fountek FR88
Subwoofer Wave 10”
Interconnect Harmonic Harmony
Speaker cable MST Melodia Stage-1
Quote From:
AutoStereo Magazine
