Replacing the op amps for both left and right channels in stereo mode, regardless of RCA or XLR inputs, will notably enhance sound quality. Mono Mode: Only replacing the op amps for the right channel.

Using XLR input mode allows for further sound quality enhancement by replacing the op amps for the XLR channel.

If a subwoofer is connected, there's the option to replace the op amps responsible for the subwoofer channel. Note: Carefully align the notch/the number '1' on the chip's cover with the 'O1' mark on the PCB. Here is a tutorial video for your reference: https://youtu.be/VvYYwxAfBi4

Why does the BT30D Pro get hot when using a 48V power supply?

If you plan to use a 48V power supply, active cooling (such as a fan) is required to ensure stable operation. You can also attach an aluminum heat sink: learn more .

Fosi Audio BT30D PRO 165Wx2 +350W TPA3255 2.1 CH Bluetooth 5.0 Power Amplifier for Speaker Subwoofer - Fosi Audio

Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp

$109.99

75 Bewertungen insgesamt

Welcome Day: 30% Off w/ Code WFS30

Features

High-Performance Amplifier
Connect Passive/Powered Speakers, Passive/Powered Subwoofers
Supports SUB frequency, SUB Volume, Master Volume/Bass/Treble Control
Replaceable Knobs: Orange Knob

MODEL: BT30D PRO+32V/5A

BT30D PRO+32V/5A
BT30D PRO+48V/5A

Produktvarianten

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Lifetime Customer Support

Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp

BT30D PRO+32V/5A

$109.99

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Redefining HiFi with Unmatched Value

This 2.1CH mini Bluetooth amp is praised by customers for its appearance, value, and sound quality. They note its impressive presentation, ability to drive speakers and add depth to the soundscape. It can power two speakers and a subwoofer, making home audio setup easy.

THD: ≤ 0.03%; SNR: ≥ 108dB; Frequency Range: 20Hz - 20kHz (±1 dB)
MAX Power Output: 165W×2+350W; Input: Bluetooth + RCA; Input Sensitivity: ≤ 600mV
Output: Passive/Active Speakers+ Passive/Active Subwoofer

One Device for All Needs

Reliable power amplifier suited for high impedance speakers and subwoofer

Stable Connectivity

You will have crystal clear audio even over Bluetooth and the range is easily more than 15m.

Ideal for Your Subwoofer

Incredibly powerful bass that stirs up thousands of waves.

Max Output Power 165W×2+350W

Two advanced chips ensure pure and powerful sound with great clarify and separation.

All-Aluminum Alloy Chassis

This little Amp comes nicely packaged with a solid feel to the case and the controls and connectors.

Knobs designed for subwoofer

The SUB FREQ knob allows frequency adjustment of passive subwoofers from 0 to 300 Hz, and the SUB VOL knob sets their volume.

Pre-Out Connector

Build a home stereo system on your desktop by connecting a powered speaker, subwoofer, or amplifier to the BT30D Pro through the 3.5mm PRE output for a compact audio receiver setup.

Product details

Description

2.1 Channel Amplifier:The BT30D PRO integrated amplifier features two sets of passive speaker outputs and one set of passive subwoofer outputs, making it easy to set up a 2.1 home theater or other stereo HiFi audio systems.
High Power with Exceptional Sound Quality:Equipped with two high-end Texas Instruments TPA3255 Class-D amplifier chips, the amplifier home audio delivers clear and pure sound without distortion or clipping, stably outputting up to 165W x 2 + 350W of power.
Bass Beast: Whether you're a gamer, movie buff, or music lover, the subwoofer amplifier provides tight, smooth, and natural - sounding bass. It features two dedicated knobs for subwoofer control: the SUB FREQ knob allows precise frequency adjustment of passive subwoofers from 0 to 300 Hz, while the SUB VOL knob lets you set the desired volume level. This gives you full control over the bass output to suit your personal preferences and listening environment.
Bluetooth 5.0 Connectivity: It maintains a stable connection and delivers clear audio over a range of up to 15 meters. This makes it perfect for enjoying your favorite tunes or audio content in outdoor areas such as your yard, terrace, or poolside, without worrying about signal drop-outs or interruptions.
Exquisite Craftsmanship:This mini amplifier is meticulously crafted with a solid, all - metal body that ensures durability and longevity. The well-designed case, along with the high-quality controls and connectors, exudes a sense of premium build and attention to detail. The exquisite packaging further adds to the overall appeal and value of the bass amp.

Specifications

Chip Set: Texas Instruments TPA3255
Output Power:
With 48V/5A PSU Stereo; 155Wx2 @4Ω; Mono: 235Wx1 @4Ω
With 32V/5A PSU Stereo; 95Wx2 @4Ω; Mono: 110Wx1 @4Ω
Terminating Impedance: 2-8Ω
Input Mode: RCA, XLR, 1/4" TRS
Output Mode: Speaker Output (supports banana plug or bare wire connection), Active Subwoofer Output
Frequency Range: 20Hz - 20KHz(±0.1dB)
SINAD: 89dB
THD: ＜0.006%
SNR: ≥106dB
Dynamic Range: ≥106dB
Device Dimension: 15.49 x 18.39 x 5.08 cm; 1.78 Kilograms
DC Input Range: 24-48V
Power Supply: 32V/5A, 48V/5A

What‘s in the box？

BT30D PRO Power Amplifier x 1

32V/5A or48V/5A Power Adapter x 1

User’s Manual x 1

Which Product is right for you?

Compare products to find the best one for your needs.

From $109.99

Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp

Learn more

Type

Bluetooth 2.1 Ch Amp

MAX Power Output

165W ×2+350W@4Ω

Input

Bluetooth, RCA

Output

Speaker Output, Passive Subwoofer Output, Pre-Out

Treble & Bass Control

Yes

THD+N

≤ 0.03%

SNR

≥108dB

Terminating Impedance

2-8Ω

Power Supply

32V/5A, 48V/5A

Amp Chip

TPA3255

From $79.99

Fosi Audio BT20A Pro Bluetooth Stereo Power Amp

Learn more

Type

Bluetooth 2.0 Ch Amp

MAX Power Output

2x 300W@4Ω

Input

Bluetooth, RCA

Output

Speaker Output, Pre-Out

Treble & Bass Control

Yes

THD+N

≤ 0.005%

SNR

≥108dB

Terminating Impedance

2-8Ω

Power Supply

32V/5A, 48V/5A

Amp Chip

TPA3255

From $79.99

Fosi Audio BT30D Bluetooth 2.1 CH Power Amplifier

Learn more

Type

Bluetooth 2.1 Ch Amp

MAX Power Output

50W x2+100W

Input

Bluetooth + RCA

Output

Passive Speakers+Active/Passive Subwoofer

Treble & Bass Control

Yes

THD+N

≤ 0.04%

SNR

≥98dB

Terminating Impedance

2-8Ω

Power Supply

24V/4.5A

Amp Chip

TPA3116 x2

From $109.99

Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp

Learn more

Type

Bluetooth 2.1 Ch Amp

MAX Power Output

165W ×2+350W@4Ω

Input

Bluetooth, RCA

Output

Speaker Output, Passive Subwoofer Output, Pre-Out

Treble & Bass Control

Yes

THD+N

≤ 0.03%

SNR

≥108dB

Terminating Impedance

2-8Ω

Power Supply

32V/5A, 48V/5A

Amp Chip

TPA3255

From $79.99

Fosi Audio BT20A Pro Bluetooth Stereo Power Amp

Learn more

Type

Bluetooth 2.0 Ch Amp

MAX Power Output

2x 300W@4Ω

Input

Bluetooth, RCA

Output

Speaker Output, Pre-Out

Treble & Bass Control

Yes

THD+N

≤ 0.005%

SNR

≥108dB

Terminating Impedance

2-8Ω

Power Supply

32V/5A, 48V/5A

Amp Chip

TPA3255

From $79.99

Fosi Audio BT30D Bluetooth 2.1 CH Power Amplifier

Learn more

Type

Bluetooth 2.1 Ch Amp

MAX Power Output

50W x2+100W

Input

Bluetooth + RCA

Output

Passive Speakers+Active/Passive Subwoofer

Treble & Bass Control

Yes

THD+N

≤ 0.04%

SNR

≥98dB

Terminating Impedance

2-8Ω

Power Supply

24V/4.5A

Amp Chip

TPA3116 x2

BT30D Pro. Amazing small Bluetooth amplifier

I purchased this Amplifier based on other people's reviews. I was not familiar with this brand.
I have to say, the amplifier is just amazing. The 2.1 works perfect and the separated controls for the Sub are a plus that really make a difference when adjusting the overall sound.
I have to mention that the Fosi Customer service/support was incredibly helpful throughout the process of selecting the model, the shipping and installation. My kudos to all of them. (Special thanks to Linda Chen and Carmen Liu)
I got the amplifier with the 48v power supply and a Fosi Fan to keep it cool. The combination really works well. (Great advice from customer support)
At first, the amplifier was a bit hot but not due to equipment issues.
It was my fault. Relocated everything and now is cool at all times.
It powers my passive Sub more than well enough but unfortunately doesn't have enough power to fully power my passive 200 watts JBL.
Once again, my fault. Fosi Audio clearly states that this amp is 100 +100 and JBL recommends a 200-watt amplifier. I will look for something a bit more powerful (probably from the Fosi lineup) and will move this one to the bedroom. Is too good to give it away.
The reason why I'm giving 4 stars and not five, is because this amp doesn't have a remote control and a mid-range knob.
It does a pretty good job for the mid if you play with the bass and treble knobs but still not the full potential of the JBL's mid-range 3way, 3 drivers.
In regard to overall power, once again, the FOSI team really got it right on the BT30D Pro. I placed the amplifier in the living room (30' by 13') and it fills every corner with a beautiful sound.
If you are asking yourself, why would I need more power if the sound is strong and beautiful enough for my living room?
The answer is simple: better-quality sound with more power. The JBL's have Crossover Frequency: 800, 4000Hz and 200 watts so a lower power doesn't really take full advantage of all their potential.
Not that this amplifier is not enough for a great strong sound. It is!!
Considering the amplifier itself (and not my mistakes in selecting the right amplifier for my speakers), the bass is strong with the Bass and Sub control, and the clarity of the Treble is amazing. The overall sound is incredible clear and crisp for a device so small and in this price range.
The Bluetooth is also amazing. I can walk with my phone all over my apartment and I won't get a single interruption in the sound.
The telephone volume and equalizer also help with the fine tuning of the quality of the sound.
I connected the 65" TV to the amplifier via the RCA's input connectors. A whole new world to watch movies. Love it.
The price for this amazing amp is unbelievable reasonable. I'm considering buying two more of these for my kids.
Overall, I totally recommend this unit with no doubt in my mind. Small or medium size rooms? this is the perfect 10 amplifier. Just make sure you pick the right speakers for it.
If it had a remote control I would definitively say is a 5 star plus.
I attached a video. The music is not over imposed even though the quality is so good that it looks like that. It is actually the real sound coming from the speakers and Sub powered by the BT30D Pro and captured by my phone mic. Please imagine that if that's how it sounds recorded by a phone (no professional equipment was used) how it really sounds standing here.
Disclaimer: I bought this amplifier from FOSI Audio. It was not given to me by Fosi as part of a promotion

Sounds great, nice subwoofer controls.

I bought this to replace a BT20a pro so that I could power a homemade passive subwoofer. It sounds great and good subwoofer controls. It does run really warm under moderate listening levels. I bought it with the 48v supply to get the most out of the amp. It would be nice if the there was an option for the sub frequency setting to actually filter out the lower frequency from the main speakers.

Perfect little amp solution.

Great lille digital amp, have it setup in my workshop/study. Upgraded from the standard version for supporting bigger standmounts and a sub, not disappointed. Easy connection & good sound quality

Runs a little hot

Happy enough with the unit. I added an old cpu heat sink onto to disapate some of the heat.
Im only using two speakers so no sub.
Works well nice setup. But I was surprised at the het of the fosi unit; hence my workaround. Worth getting.

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Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp

Review Videos

One of the best bluetooth amplifiers 2.1 with the TPA3255

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Fosi Audio BT30D Pro Power Amplifier Unboxing in Telugu...

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A small but mighty 2 channel compact integrated Bluetooth amplifier

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