Exclusive Discount 🔥 FX AUDIO 2.1 Channel Bluetooth Power Amplifier Home Audio Class D Amplifier with Subwoofer Output TAS5342A Hi-Fi Stereo Mini Small Optical Audio Amp DC 24V 4A Power Supply D502BT (Silver)
Review FX AUDIO 2.1 Channel Bluetooth Power Amplifier Home Audio Class D Amplifier with Subwoofer Output TAS5342A Hi-Fi Stereo Mini Small Optical Audio Amp DC 24V 4A Power Supply D502BT (Silver)
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| Voltage | 24 Volts |
| Manufacturer | FX AUDIO |
| Brand | FX AUDIO |
- 【Function of the Stereo Amplifier】 This compact HiFi Bluetooth amplifier is designed for audiophiles who pursue HiFi sound. This full digital amplifier transmits input digital signal to PWM modulation and keeps lowest distortion. It has powerful power amplification. Package includes D502BT class D amplifier, DC 24V 4A power cable, optical cable, Micro-USB cable, 3.5mm to RCA cable, remote control. If you have any quality problems about our products, please feel free to contact us by emailing us
- 【5 Inputs & 2 Outputs (Active Subwoofer, Passive Speakers)】 This little home audio amplifier with SUB supports optical, coaxial, Micro USB and Bluetooth input which support digital signal transmission, and one 3.5mm AUX auxiliary analog signal input. The amp supports today’s most smart devices, including smartphones, tablets, laptops, desktops, etc. Binding posts connect to L/R passive speakers, and one special subwoofer interface connects to subwoofer active speaker
- 【DSP Bass, Treble & Volume Control】 Press the Volume Knob (encoder) and select bass or treble. The LED display will show BASS /TREBLE mode in seconds. Rotate right to increase the volume, and left to decrease the volume. When stop rotating, the LED display will be back to show volume and input. Remote control can switch bass, treble, volume. Easy and convenient to use. Sampling rate LED indicator will display the corresponding sampling rate of input audio devices
- 【Digital Amplifier with High Performance Chip】 2 x 60W@4ohm power TAS5342A amp chip, DSP data processing chip TASS5508C, SA9023 USB chip(driver free, supports USB 24Bit/ 96kHz, coaxial and optical 24Bit/ 192kHz), Bluetooth 5.0 chip QCC3003 (wireless connection music streaming), CS8422 circuit chip (digital audio circuit receiving and decodes digital audio data), PCM1808 AD chip (LR analog signal converts to digital signal I2S), STM8 MCU chip
- 【Bluetooth 5.0 Professional Power Amplifier】 Aluminum alloy oxidation wiredrawing shell makes the home amplifier with subwoofer output chic and textured. Yellow immersion gold PCB RF4 board is stable, high temperature resistant, impact-resistant. Power filtered magnetic ring can filter power ripple and ensure lower noise. Special audio inductance keeps lower distortion. The home amplifier with subwoofer output works with today’s latest smart devices. Any questions, please feel free to contact us
Product Description
Technical Specs:
- Chipset: TAS5342A+SA9023+CS8422+TASS5508C+STM8S103F3-32+PCM1808+QCC3003
- Sampling Rate: Optical/Coaxial 16-24Bit/ 44.1kHz-192kHz, USB--16-24Bit/ 44.1kHz-96kHz, AUX/BT--24Bit/ 48kHz
- Power Output: 60W+60W@4Ω, 45W+45W@8Ω
- SUB Level Output: 2.7Vrms
- THD: 0.04%
- SNR: -106dB
- Frequency Response: ±1dB(20Hz-20kHz)
- Power Supply: DC 24V 4A
FX-AUDIO-
D502BT 60W+60W Full Class-D Digital Amplifier
Our brand FX AUDIO is dedicated to providing HiFi products for audiophiles who pursue great sound quality. This full digital amplifier is designed for transmiting digital audio signalfrom your audio input devices to your L/R passive speakers or active subwoofer speakers. It is perfect for your bookshelf HIFI home theater acoustic sound system. (Please Note: Only support PCM format, not support DTS and Dolby.) We provide 12-month quality insurance for all our products.
- Built-in Bluetooth 5.0 QCC3003 chip for connecting wireless audio streaming
- Special subwoofer and L/R passive speakers outputs
- Optical/ coaxial/ micro-USB/ Bluetooth inputs
- DSP Bass and treble volume control
- LED indicator for sample rate
- LED display shows corresponding inputs and volume
- Complimentary 3.5mm to RCA cable, Micro-USB cable and optical cable
- Package includes remote control for wireless control, but need AAA button battery( not included)
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Various External Signal Sources, Bluetooth Digital Amp4 digital inputs - Bluetooth, coaxial, optical, Micro-USB. 3.5mm AUX input converts analog signal to digital signal. Compatible with most audio devices, like smartphones, laptops, desktops, smart TV, DVD, Blu-ray, etc. Bluetooth 5.0 module ensures effortlessly connection to your smart phone and maintains a strong wireless connection. | Driving Passive Speakers and SubwooferOur D502BT amplifier has a subwoofer signal output and RCA output interface, so it is compatible with both L/R passive speakers and subwoofer (active subwoofer). This amplifier receives audio signal from coaxial/ optical/ Bluetooth/Micro-USB input, amplifies and transmits signal to passive speakers and subwoofer. It will work great for powering stereo system. | LED Indicator and LED DisplaySample rate LED indicator will automatically show the corresponding sample rate of your input devices. LED display in front panel will show the input and volume at normal, and will shortly show the bass or treble mode after press the encoder. |
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Power Filtered Magnetic Ring and Audio InductanceThe built-in power filtered magnetic ring and audio inductance will filter power ripple and keep low noise. Special audio inductance ensures low distortion. It’s a great amplifier with low distortion and acoustically accurate reproduction of music. Low noise and low distortion. | DSP Bass and Treble AdjustmentThis Bluetooth home stereo amplifier supports DSP bass and treble adjustment, integrates DSP tone adjustment and digital pulse width modulator (PWM), directly drives the power stage of H-bridge. Both Volume knob and remote control can switch bass, treble and volume modes. | Aluminum Alloy Shell and FR4 PCB BoardAluminum alloy metal oxidation wiredrawing shell is with elegant appearance and great wear-resistance. Yellow immersion gold FR4 PCB board ensures less impact in signal transmission. The mechanical properties, dimensional stability, impact resistance, and moisture resistance of fr4 insulation board works great. It has excellent electrical performance, higher operating temperature, and its performance will be less affected by environment. |
Common Questions
1. Cannot turn on the amp: If the light of power adapter is on. Try another power supply. Or press the ON/OFF button for 3 seconds to see if it can be restarted.
2. Bluetooth input has no response: Switch the input to Bluetoothand wait for two seconds until the Bluetooth light flashes.
3. Sound becomes smaller or no output due to Bluetooth connection: Change another Bluetooth audio source device, or delete the connection on your Bluetooth device and reconnect it, or check if other inputs have the same problem.
4. The subwoofer interface can only be connected to active subwoofer speakers, not passive ones.
5. Be sure to confirm the impedance, power and other parameters of your speakers before buying, so as to ensure that you buy a suitable power amplifier.
6. Some possible reason for noise: Problem from your speakers. Problem from input audio source devices, try different audio sources to test. Audio signal line is suspended. Audio cable problem, not firm or bad quality. Poor power adapter.
7. Don't connect only one or none speakers or the amp will burn out. Because the instantaneous output voltage of high power is relatively high, when the single pulse exceeds the power amplifier voltage, it will break the amp.
8. Reasons for burning down the power amplifier: The positive and negative poles of the power supply are reversed. Exceeding the limit voltage required by the amp. Unstable voltage. Wrong cable connection. When the output is unloaded or only connected to one channel. AC and DC are used in a mixed manner.
9. Power is not enough and the sound is low: Check whether the power, voltage and current and signal amplitude of the audio source are sufficient.
10. Sound interruption: Insufficient speaker impedance. Insufficient power supply current.
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| D502BT | D802C PRO | 502S PRO | FX1002A | D2160 | XL-2.1BL | |
| Chip Type | TAS5342A + TASS5508C + SA9023 + QCC3003 + STM8 | STA326 + S & PDIF AK4113 + Audio Controller / CM6642+ CSRA64215 4.2 + NFC + ADC Wolfson WM8782S | TPA3250 | TDA7498E | TAS5614 + MCU STM32 + DSP TAS5548 + PCM1808 + AK4118 + CM6642 + CSR8675 + MAX9722 | TPA3116D2 + CSR8635 |
| Specifications | Class D Full Digital Amplifier Power Output: 60W+60W@4Ω；45W+45W@8Ω | Full Class D Digital Power Amplifier Power Output: 80W+80W @ 4Ω; 50W+50W @ 8Ω | Digital Amplifier which can be used with tube preamplfiier Power Output: 50W+50W@4Ω; 25W+25W@4Ω | Digital Amplifier which can be used with tube preamplifier Power Output: 160W+160W @4Ω; 80W+80W@8Ω | Full Class D Digital Power Amplifier with Headphone Output Power Output: 150W+150W @ 4Ω；110W+110W @ 8Ω | Digital Amplifier with Subwoofer Output Power Output: 50W + 50W +100W@4Ω 25W+25W + 50W@8Ω |
| IR Remote | YES | YES | NO | NO | YES | NO |
| Bass & Treble | YES | DSP Bass/Treble | NO | NO | YES | YES |
| Bluetooth | YES | CSRA64215 Bluetooth 4.2 | NO | NO | CSR8675 Bluetooth 5.0 | CSR8635 Bluetooth 4.0 |
| Input | Bluetooth, AUX, Optical, Coaxial, Micro-USB | Bluetooth, AUX, Optical, Coaxial, PC-USB | RCA (Smartphone,PC/Laptop, CD/DVD) | RCA (Smartphone,PC/Laptop, CD/DVD) | Bluetooth, AUX, Optical, Coaxial, PC-USB | Bluetooth, RCA, 3.5mm AUX |
| Output | Passive Speakers R/L + Active Subwoofer | Passive Speakers R/L | Passive Speakers R/L(4Ω-8Ω passive Speaker) | Passive Speakers R/L( 4Ω-8Ω passive Speaker ) | Passive Speakers R/L, 6.35mm headphone output | Passive Speakers R/L + Passive Subwoofer |
| SNR | 106dB | 92dB | 84dB | 77dB | 106dB | 103dB |
| THD | 0.04% | 0.2% | 0.1% | 0.07% | 0.02% | 0.03% |
| Voltage Input | DC Power Supply 24V 4A | DC Power Supply 32V 5A | DC Power Supply 24V 4A | DC Power Supply 32V 5A | DC Power Supply 36V 6A ( Both power supply choice) | DC Power Supply 24V 4A |
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