Achète pour remplacer l’ampli d’une mini-chaine Denon D-M33, et utilisé pour la TV en optique, le Bluetooth et l’USB (adaptateur Lightning vers USB indispensable sur iPhone). J’en suis très satisfait, rapport qualité prix impressionnant.
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Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
Amplifier FDA TAS5342A Subwoofer Output Bluetooth 5.0 2x40W 8 Ohm
The FX-Audio D502BT is, as its name suggests, the successor to the D502. The D502BT takes over its base and components, but this time it comes with a Bluetooth 5.0 receiver, which is very useful for remote music playback from a compatible device such as a smartphone.
The D502BT is therefore a complete, high-performance FDA (Full Digital Amplifier) amplifier at a contained price. It is equipped with a complete set of connectors, quality components, a beautiful OLED screen and treble / bass settings, while delivering a rich and precise sound.
The amplification stage of the D502BT is entrusted to a high-performance TI TAS5342 chip. This one allows to deliver a power of 2x40W under 8 Ohm or 2x60W under 4 Ohm, while ensuring a low noise and distortion rate. A power which will allow you to associate the amplifier with many loudspeakers, especially since the D502BT offers a high efficiency of more than 90%.
In addition, the chip integrates a complete protection system, protecting the device from short circuits, undervoltage, overtemperature or loss of PWM signal.
The great novelty of this D502BT version is of course its Bluetooth reception. For this purpose, it embeds a Qualcomm QCC3003 chip, supporting Bluetooth in version 5.0. This allows a fast and stable transmission of audio streams, for high quality listening.
Cirrus Logic's CS8422 chip is a 24bit asynchronous sample rate converter that also incorporates an S/PDIF interface. The CS8422 allows synchronization with the Master Clock for perfect synchronization and thus ultra-low jitter.
To allow you to connect a USB device such as a smartphone for example, the D502BT offers a USB Micro input. Behind this plug is a SA9023 USB interface chip, supporting sample rates up to 24bit 96kHz. A chip that has already proven itself in many audio devices.
The NE5532 is an efficient dual operational amplifier. It offers good performance in terms of noise, high gain, low distortion, high scanning speed and numerous protections. In the case of the D502BT, this chip takes care of the subwoofer output.
FX-Audio provides an IR remote control with its FDA to control the amplifier and all its functions. No need to get up to turn on the unit, adjust the volume, change sources or adjust bass and treble.
The D502BT, like its predecessor, offers a full range of inputs and outputs to meet the vast majority of needs and allow integration into most audio systems.
1 | Bluetooth antenna connector |
2 | Micro USB input |
3 | AUX Jack 3.5mm input |
4 | Optical Toslink input |
5 | Coaxial S/PDIF input |
6 | Subwoofer output |
7 | Speaker terminals |
8 | Power supply connector 24V 4A |
The front panel of the D502BT features a small, attractive OLED display that shows essential device information such as the current volume level or the active input. On the left side of this screen, a series of LEDs indicate the sampling rate of the file being played.
Specifications | |
---|---|
Product type | FDA Amplifier |
Power | 2x45W @ 8 Ohm 2x60W @ 4 Ohm |
Inputs | Bluetooth 5.0 1x AUX Jack 3.5mm 1x Micro USB 1x Optical Toslink 1x Coaxial S/PDIF |
Outputs | 1x Subwoofer output Speaker terminals |
Asynchronous converter chip / SPDIF interface | CS8422 |
Amplification chip | TI TAS5342A |
ADC chip | PCM1808 |
Bluetooth chip | Qualcomm QCC3003 |
USB interface chip | SA9023 |
MCU chip | STM8S103F3-32 |
PWM processor | TI TAS5508C |
Supported sampling rates | Optiqcal / Coaxial : PCM up to 24bit 192kHz USB : PCM up to 24bit 96kHz AUX : PCM up to 24bit 48kHz Bluetooth : PCM up to 24bit 48kHz |
Distortion | 0.22% |
THD+N | 0.04% |
SNR | 106dB |
Subwoofer output level | 2.7V RMS |
General | |
---|---|
Supply voltage | 24V 4A (power adapter included) |
Dimensions | 132 x 128 x 33mm |
Weight | 525g |
Housing material | Aluminium |
Color | Black |
Package | 1x FX-Audio D502BT 1x IR remote control 1x Power supply |
Input | Jack 3.5mm |
Input | Optical |
Input | SPDIF |
Input | Bluetooth |
Output | Speaker terminal |
Output | Subwoofer |
Color | Black |
Channel | 2.1 |
Class | Class D / T |
Amplifier chip | TAS5342A |
Power (W) | 40.0 |
Remote Control | Yes |
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