Fosi Audio BT30D Bluetooth 5.0 Stereo Receiver Amplifier - 2.1 Channel Mini Hi-Fi Class D Integrated Amp (50Wx2 + 100W) for Home Theater, Outdoor Parties & Passive Speakers - Perfect for Living Room, Patio & Gaming Setup
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Estimated Delivery:7-15 days international
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SKU:21914717
Product Description
Our Story Fosi Audio was founded with a simple goal: Build products that sound great and make people want to listen to music every day. We design, manufacture, and sell many Hi-Fi audio products on the market. We pursue your perfect music journey. Enjoy Hi-Fi music with Fosi Audio audio products! Product Parameters: 2.1 CH Bluetooth Stereo Amp Power Adapter: 24V/4.5ADC Input Range: 12-24VTHD: ≤ 0.04%, SNR: ≥ 98dBFrequency Range: 20Hz - 20kHz (±1 dB)Input Sensitivity: ≤ 280mV;Terminating Impedance: 2 - 8 OhmMAX Power Output: 50W x 2+100W Input Mode: Bluetooth and RCABluetooth Transmission Distance: Up to 50 FtPackage Include: BT30D Amp, Power Supply, User Manual 2 Channel Power Amp: BT10A, BT20A, TB10A, TB10D, V1.0B, V1.0G, TDA7498E, ZK-1002, ZK-502T. 2.1 Channel Power Amp: BT30D, BT30D Pro, BL20A, BL20C, ZK-TB21. DAC: Q4, K5 Pro, DS1, DS2. DAC Amplifier: PH04, DA2120A, DA2120C. Subwoofer Amp: TP-02, M01-BT, M02, M03, M04. Phono Preamp: BOX X1, BOX X2, BOX X3, BOX X4. Tube Preamp: P1. Tube Headphone Amplifier: T20, T20X, P2. Class AB Amplifier: T3. Add powerful home theater-quality sound performance to your desktop with a compact amplifier style. Deliver clear, accurate sound that's loaded with Subwoofer volume and frequency control. The upgraded DC outlet with a built-in power protection circuit, is safe for use. The Fosi Audio BT30D Bluetooth Stereo Amplifier Receiver is the perfect solution for all of your audio needs! Bluetooth 5.0 wireless audio streaming along with RCA jack to directly connect & stream audio from external devices. Fosi Audio BT30D amp comes with an energy-efficient and stable 24V/4.5A power supply that can get efficient output power. In order to fix the issue you may have more effectively, here are some tips: --About Bluetooth connectivity issue: 1. Ensure that all wiring is correct. 2. There is no signal interference nearby. 3. Try using a different power source and outlet. 4. If there are multiple input modes, check whether other input modes work properly. 5. Try using different Bluetooth devices, speaker wires, and speakers. 6. Change the environment. 7. If there is a Bluetooth antenna included, ensure that it is connected correctly and try using a different antenna. --About sound issue or not working properly: 1. Make sure all the cables are fully connected. 2. Adjust the treble and bass control of the power amplifier to achieve the right tone. 3. Please try to change the sound source and cables to test. BL20A BT30D BT30D PRO BT20A PRO BL20C-N T3 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews 4.4 out of 5 stars 676 4.4 out of 5 stars 2,681 4.5 out of 5 stars 1,046 4.5 out of 5 stars 1,743 4.6 out of 5 stars 865 4.0 out of 5 stars 73 Price $79.99$79.99 $89.99$89.99 $107.35$107.35 $99.99$99.99 $89.99$89.99 — no data Type Bluetooth 2.1 CH Amp with Remote Control Bluetooth 2.1 CH Amp Bluetooth 2.1 CH Amp Bluetooth 2.0 CH Amp Bluetooth 2.1 CH Amp Bluetooth Tube 2.1 CH Amp MAX Power Output 100W x 2 50W x 2+100W 165W×2+350W 300W x 2 160W x 2 50W x 2 Input Bluetooth + 3.5mm AUX + U-disk Bluetooth + RCA Bluetooth + RCA Bluetooth + RCA Bluetooth + RCA + U-disk Bluetooth + 3.5mm AUX1+3.5mm AUX2 Output Passive Speakers + Active Speakers/Amplifier/Active Subwoofer Passive Speakers+Active/Passive Subwoofer Passive/Active Speakers+ Passive/Active Subwoofer Passive Speakers+Active Speakers/Sub/Amp Passive Speakers + Active Subwoofer Passive Speakers + Active Subwoofer+ Headphone Treble & Bass Control ✓ ✓ ✓ ✓ ✓ ✓ THD ≤ 0.001% ≤ 0.04% ≤ 0.3% ≤ 0.005% ≤ 0.05% ≤ 0.1% SNR ≥ 92dB ≥ 98dB ≥ 85dB ≥108dB ≥ 98dB ≥ 80dB Terminating Impedance 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 4-8 Ohm Power Adapter 24V/4.5A 24V/4.5A 32V/5A 32V/5A 24V/4.5A - no data Work Voltage AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V T10 T20 BOX X2 BOX X4 DS1 DS2 Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.0 out of 5 stars 239 4.3 out of 5 stars 1,283 4.6 out of 5 stars 2,814 4.2 out of 5 stars 749 4.2 out of 5 stars 321 4.4 out of 5 stars 118 Price $129.99$129.99 $89.99$89.99 $69.99$69.99 $79.99$79.99 $79.99$79.99 $59.99$59.99 Type Bluetooth WiFi 2.1 CH Amp Bluetooth Tube 2.0 CH Amp Phono Preamp with Vacumm Tubes Phono Preamp with Vacumm Tubes DAC+Headphone Amp DAC+Headphone Amp MAX Power Output 100W x 2 50W x 2 Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. Note: It cannot be directly connected to passive speakers, but can only be connected to active speakers or amplifiers. 120mW@32 Ohm(SE); 220mW@32 Ohm(BAL) 120mW@32 Ohm(SE); 250mW@32 Ohm(BAL) Input Bluetooth 5.0 + WIFI + 3.5mm AUX + U-disk Bluetooth + RCA RCA+3.5mm AUX RCA+3.5mm AUX Type C+ USB A Type C+ USB A Output Passive Speakers + PRE-OUT Passive Speakers + Headphone Active Speakers RCA+3.5mm AUX 3.5mm Headphone+ 4.4mm Headphone 3.5mm Headphone+ 4.4mm Headphone Treble & Bass Control ✓ ✓ x ✓ x x THD ≤0.01% ≤ 0.04% ≤ 0.1% ≤ 0.1% ≤ 0.0006%(SE) ≤ 0.001%(BAL) ≤ 0.0006%(SE) ≤ 0.001%(BAL) SNR ≥115dB ≥ 98dB ≥ 98dB ≥70dB ≥120dB ≥108dB Terminating Impedance 2-8 Ohm 2-8 Ohm - no data - no data 16-300 Ohm 16-300 Ohm Power Adapter 24V/4.5A 24V/4.5A 12V/1.5A 12V/1.5A - no data - no data Work Voltage AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V - no data - no data
Product Features
2.1CH Bluetooth 5.0 Power Amplifier This amp boasts an exquisite design, enhanced operation, and exceptional sound performance. It delivers a rich and immersive audio experience with its high-quality construction and user-friendly interface.
Versatile Connectivity with BT30D The amplificador de audio supports both Bluetooth and RCA inputs, making it compatible with a wide range of audio devices. It can effortlessly drive most home passive speakers and both passive and powered subwoofers. With adjustable SUB volume and frequency, as well as bass and treble controls, it ensures a true Hi-Fi music quality tailored to your preferences.
High-Performance Audio Chip The wireless stereo amplifier is powered by two Texas Instruments TPA3116D2 chips. These advanced stereo digital amplifier chips are designed for high efficiency and performance. They feature an advanced oscillator/PLL circuit with multiple switching frequency options to avoid AM interferences. This ensures high output power and superior audio quality, with a maximum power output of up to 200 watts.
Enhanced Bluetooth Connectivity This Bluetooth 5.0 stereo audio amplifier receiver offers enhanced stability, improved sound quality, and an extended use distance. It supports a streaming range of up to 50 feet, ensuring seamless connectivity with the latest devices such as smartphones, tablets, laptops, and computers.
What You Get BT30D audio amplifier x1, 24V/4.5A power supply x1, user manual x1. Everything you need to start enjoying good quality audio is included in the box.
Customer Reviews
Music is a huge and daily part of our lives. Because we don’t like to overdrive the living-room system just to also “light up” the kitchen area with sound, I’ve kept a small (homebrew) 18+18W amplifier and Minimus 77 speakers on top of our fridge for years. It was linked to the living-room system via a stereo audio isolation transformer, and a Bluetooth receiver with an audio switch. Unsightly, but it worked well and sounded nice. With a recent remodeling of the kitchen and living-room areas, a better-looking solution was required. With a 12x12 soffit running in an “L” shape above all of the kitchen cabinets, in-wall speakers were the obvious choice. We ordered a set of Dayton Audio ME625W in-wall 2-way units and as I will get into later, eventually added a Dayton Audio DCS165 subwoofer and quasi-matching grille, all via Amazon. (The Pyle and FOSI amplifiers mentioned here were also Amazon purchases.)My first choice for a new small amp to power this was the Pyle PFA540BT unit with built-in FM radio and Bluetooth features. That unit was bought as an open box from Amazon. While plenty loud, it had a subtle but definite grating midrange distortion once warmed up that I did not notice until it was outside of the return window. My bad, these new parts all sat around while we finished the other renovations. We all agreed it was annoying, even my kids. Additionally, the switch-mode power supply for that amp was so noisy (RF-wise) that the radio receiver only would pull in one station, with a local antenna from only a couple of miles away. The rest of the band was utterly swamped out. (No FCC cert logo visible on the PSU, now we know why).My second amp was a FOSI audio unit, the BT30D, which is much better. No radio, but BT and line in. As a plus, it’s a 2.1 system with a dedicated drive channel for a passive sub. It’s rated at 50+50+100w. It’s plenty loud, however be aware it ships with a switching power supply that can deliver only about half of that wattage. (24v x 4A = 96W). Ah, marketing.With the amp issue sorted, I was still disappointed that the in-walls did not have bass that matched the small mini-77’s that we had listened to for 10 years. Given the larger drivers and volume of trapped air behind the in-walls, I was a little surprised. Research on the FOSI website was not able to tell me if the FOSI unit has a fixed High Pass Filter on the L-R outputs or not, so I was not sure if it was the speakers, or the amp limiting the bass. Everything below about 120Hz was absent.The Pyle amp, which has no amplified sub output, sounded similar in the bass, and a third full-range analog amp I connected in also played with little bass. Conclusion is that it’s the speakers or the install environment, most likely the speakers, as the two are separated by a lot of insulation, preventing any phase cancelling behind the wall.As a result, the stout little Dayton Audio 6-1/2" sub driver was ordered and installed with a ¾” split-baffle as support in the corner of the soffit for best loading. Once set up and adjusted, we now have a system with some decent extension into the 50-100 Hz range and more than enough volume to fill the kitchen area while providing a nice stereo listening field for most of the room. I wish we had the space for a larger sub driver, but with the framing behind the 12x12 soffit, an 8” or 10” just wasn’t going to fit. The 6-1/2” sub is respectable but it’s being driven rather hard to make up for it’s lack of piston area. A second identical unit is being considered, to double the cone area and increase the efficiency, but at least for the moment it sounds nice at reasonable levels. (EDIT: a second identical sub went in, same baffle approach, as close as I could get it to the first, which helped a lot - a little more cone area to grab air - and they are not being driven so hard. The system as of March 2023 is still going strong and used daily - DSB)On balance, the FOSI amp has been very good and well-behaved. It runs a little warm, but for its size it’s punching well above its weight and the BT implementation sounds quite good. It must have a decent SBC buffer scheme, as we don’t experience any buffer under-run drop-outs over long term listening with any of the apple, android or Chromebooks attached. Bluetooth range has also been solid throughout the area. This is probably due to the external no-compromise BT antenna. The amp is small enough not to notice on top of the fridge, and looks pretty smart. I’d buy it again. I will be posting this same review on the Sub and In-Wall speakers pages as well, because it's kind of a system-level review of all the bits and pieces.
