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

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

68 総評

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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

BT30D PRO+32V
BT30D PRO+48V

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Fosi Audio BT30D Pro 2.1 Channel Bluetooth Amp

BT30D PRO+32V

$109.99

Review Videos

One of the best bluetooth amplifiers 2.1 with the TPA3255

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Spec Of Tech

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A small but mighty 2 channel compact integrated Bluetooth amplifier

Spec Of Tech

Could It Be the Perfect Desktop Mini Amp?

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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.

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

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

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

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

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

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

Great But...

The Fosi Audio BT30D Pro 2.1 is great as an amplifier. Im using it for an outdoor sound system in Las Vegas and im trying to figure out a way to see it outdoors and cool. There aren't any mounting holes for the amp so I needed to be creative on how to mount it. Also your specs don't state what size the coax BT antenna, I would like to buy a extender for the antenna,. Im mounting the amp inside a custom BBQ but Im trying to mount the antenna on the outside. So as for the amp its great I just wish you built more accessories or have outdoor amp options or mounting accessories.

Great little amp.

Good amp has adequate power and perfect for small to medium room use. However, it did take a bit too long to be delivered.

Impressive

I purchased this on Father’s Day to utilize some old bookshelf’s and a powered 8” sub that the internal amp quit on. Everything resides in the basement gym and I couldn’t be happier!

The Bluetooth connects every time, and there is a ton of power to drive the 8”.

Ein wundervoller Klang und eine ausgezeichnete Leistung

Vielen Dank an Fosi für dieses tolle Gerät. Ich wollte aus meinen alten KFZ Lautsprechern, bestehend aus einem passiven Subwoofer und Zwei Drei-Wege-Lautsprechern, eine Anlage für meinen Garten zusammenstellen. Natürlich habe ich erstmal nach einem geeigneten Spannungswandler für die KFZ-Endstufe gesucht, da ich dachte ich muß alles über 12V betreiben. Aber ich bin zum Glück bei der Suche auf YouTube Videos gestoßen, wo unterschiedliche Geräte von Fosi getestet wurden. Das von mir anvisierte Gerät, Fosi Audio BT30D Pro, klang in den Reviews sehr vielversprechend, hat mich aber stark zweifeln lassen da ich nicht glauben konnte daß das Gerät wirklich so gut sein könnte wie beschrieben. Die Reviews schienen mir völlig übertrieben. Aber ich dachte ich probiere es mal aus. Für mein Vorhaben war diese kleine 2.1 Endstufe im Grunde genau das was ich brauchte, und auch der Preis war akzeptabel. Also habe ich mir das Gerät bestellt. Ca. 8 Tage später kam mein Gerät an und ich habe es sofort angeschlossen um mir einen Eindruck zu verschaffen. Ganz ehrlich: Es hat mich sehr beeindruckt. Der Klang war kristallklar, richtig schön sauber, selbst bei voller Lautstärke. Der Subwoofer Klang richtig schön, sehr druckvoll und ausgewogen. Das Klangbild insgesamt war dermaßen erstaunlich, daß ich mir vorgenommen habe Fosi für dieses Gerät eine Top-Bewertung zu geben und meine absolute Kaufempfehlung auszusprechen, obwohl ich sonst nicht unbedingt dazu neige Rezensionen zu schreiben. Aber hier muß es sein. Leute das Gerät ist einfach nur genial und seinen Preis absolut wert. Ich kann jedem, der an ein 2.1 Bluetooth System interessiert ist, dieses Gerät empfehlen. Ich muß aber dazu sagen daß ich UNBEDINGT darauf achten würde das 48V Netzteil zu wählen. Die Mehrleistung gegenüber dem 36V Gerät ist wirklich enorm. Zudem empfehle ich 4 Ohm Lautsprecher. Mich hat Fosi mit diesem Gerät glücklich gemacht. Vielen Dank dafür. Ich würde immer wieder bei Euch kaufen.

Excellent product, outstanding quality

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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

A small but mighty 2 channel compact integrated Bluetooth amplifier

Could It Be the Perfect Desktop Mini Amp?

Fosi Audio BT30D Pro My Real Experience

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

One of the best bluetooth amplifiers 2.1 with the TPA3255

A small but mighty 2 channel compact integrated Bluetooth amplifier

Could It Be the Perfect Desktop Mini Amp?

Fosi Audio BT30D Pro My Real Experience

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