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K2 Technology |
Tokyo Aoyama Recording Studio
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K2 Technology improves sound quality by generating expanded digital signals.
During the A/D conversion of CD recording, high frequencies in inaudible ranges (those beyond 20kHz) are removed according to the CD's sampling frequency.
However, this affects the quality of sound in audible ranges.
With exclusive algorithms, K2 Technology restores those lost signals based on the recorded digital signals, while also using high-bit quantisation to reproduce minute signals.
It improves the quality of the music data in the audible range, delivering superior sound close to that of the original master.
The technology also works well for compressed audio, such as MP3 and WMA. |
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Hybrid Feedback Digital Amplifier |
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The JVC-original Hybrid Feedback Digital Amplifier
allows the centre unit to be amazingly compact, while still delivering
astounding sound matching that of high-grade analogue amplifiers.
This is possible due to the use of two feedback processes — digital
and analogue feedback. The former generates highly precise digital
PWM (Pulse Width Modulation) signals, and the latter further 'brushes
up' the analogue signals to ensure that the waveform of the signal
at output is identical to the original. This technology cuts the
distortion to one-tenth that of a conventional digital amplifier
and significantly improves wood cone speaker driveability. |
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Bi-Amp System (EX-A10) |
The Bi-Amp system assigns a separate amp each to directly drive the tweeter and woofer. Since a crossover network is not used for the speaker, there is no signal distortion caused by network parts and no signal interruption between the two ranges. The result is significantly lower distortion. This direct driving system also creates a faster rise time and more accurate response for the output waveform. This ensures higher-fidelity sound with increased dynamism. |
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Separate Power Supplies & Thick Aluminium
Front Panel
(EX-A10) |
The separate DVD player and amplifier each have their own power supply. This means audio signals in the amplifier are not affected by the electric current from the DVD player, ensuring lower noise. In addition, each front panel features 8mm-thick aluminium, which prevents unwanted vibrations. |
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Isolated Amp and Switching Power Supply (EX-A3, EX-AK1)
The aluminium cabinet individually houses the digital amplifier and switching power supply module, physically separating the two units from the audio circuit.
This effectively avoids signal interference and noise. |
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 Isolated Amp and Switching Power Supply |
USB Host (EX-A3) |
A dedicated terminal allows USB connection with your digital audio player, or any other USB Mass Storage Class device — a direct connection without using a PC.
You can enjoy MP3 or WMA music on the speakers, in all-digital signal transmission with no conversion loss.
What's more, K2 Technology upgrades compressed audio into CD quality sound.
You can even play movies and still photo files on the TV Screen.
USB also supplies power to the connected device.
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Headphone Surround uses JVC-original algorithms to reproduce the realism and localisation of multi-channel speakers on your headphones.