BT30C Bluetooth 4.2 Stereo Amplifier 2.1 Channel Class D Audio Amp with Subwoofer Volume Control 2x50W 1x100W Sub Output Super Bass Power Receiver, Treble Bass Independent Adjustment + Power Supply

BT30C Bluetooth 4.2 Stereo Amplifier 2.1 Channel Class D Audio Amp with Subwoofer Volume Control 2x50W 1x100W Sub Output Super Bass Power Receiver, Treble Bass Independent Adjustment + Power Supply

Q: How can this amp deliver 200w (output power: 50w+50w+100w) if the power supply only delivers 100w? at the same time it says the psu is ’matched’?

I believe some of the specs for this amp are inaccurate and I'm not sure what the actual ratings are. Regardless, I have been running this amp for a year with speakers from a 540W Sony MHC-EC909IP https://www.amazon.com/Sony-MHCEC909iP-System-Discontinued-Manufacturer/dp/B003GZDB1Q after the main unit broke. This amp drives the speakers just as well as the Sony unit and I was happily surprised with its performance. Again, Im unsure of the actual specs, but I wanted to give you a reference of the amps actual capabilities.

Q: How can this amp deliver 200w (50w+50w+100w) if the power supply only delivers 100w?

With the power supply it comes with, it can't. Most people will be happy with 100w total watts, especially since it can be divided between the channels moment by moment. That's better than a 25x2+50W amp, since the sub on this could be driven with all the input power, if there was no audio needing the L & R. However, yes, if you want to get the full power out of this amp, and it has honest ratings, and won't distort or overheat at full output, you'd need to buy at least a 250W PSU (assuming 80% efficiency at full load). A 24V 10A supply isn't unusual, but will run about $40 if you don't get the absolute cheapest one out there.

Q: Can i use an a/b switch at the input to switch between a cd player,and,a turntable?

Yes you can !!!!! But you will need a pre amplifier for the turntable if it a mag. cartage !!!!!

Q: if I turn up the master volume does the sub volume increase with it, or do I need to adjust the bass volume to not be drowned out by speakers

The Master volume controls ALL the channels, including the subwoofer. The BASS VOL volune knob adjusts the subwoofer volume only, so you can set it as desired relative to the main L & R channels, along with the FREQ knob, which adjusts the subwoofer hi-frequency cutoff. Once you’ve got the proper balance set, then you use the Master volume to adjust the overall listening level. The TREBLE and BASS knobs adjust these frequencies for ALL channels, according to you preference.

4.4/5

Product ID: 549695751

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Details

Item dimensions L x W x H
12 x 9 x 3
Voltage
24 Volts
Manufacturer
Fosi Audio
Maximum Supply Voltage
24 Volts
Minimum Supply Voltage
12 Volts

⚡200W Max Power

📶Bluetooth 5.0 Connectivity

🔊2.1 Channel Output

Frequently Bought Together

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Amazon Basics 16-Gauge Speaker Wire Cable, 100 feet, Bronze

Description

🎶 Elevate Your Audio Game!

SAFETY FIRST - Built-in protections against short circuits and overheating.
COMPACT ELEGANCE - Sleek aluminum design fits perfectly in any space.
VERSATILE INPUTS - Connect via Bluetooth, RCA, USB, or AUX for ultimate flexibility.
UNLEASH THE SOUND - Experience immersive audio with 2x50W + 1x100W sub output.
SEAMLESS CONNECTIVITY - Bluetooth 5.0 for effortless pairing and a 15m range.

The Fosi Audio BL20A is a powerful 2.1 channel Bluetooth amplifier that delivers up to 200W of audio output. With Bluetooth 5.0 technology, it ensures seamless connectivity and supports multiple input modes, making it a versatile choice for any audio setup. Its compact aluminum design not only looks great but also fits easily into any environment, while built-in safety features protect your devices from damage.

Specifications

Item dimensions L x W x H	12 x 9 x 3 Centimeters
Voltage	24 Volts
Manufacturer	Fosi Audio
Maximum Supply Voltage	24 Volts
Minimum Supply Voltage	12 Volts
Mounting Type	Freestanding
Brand	Fosi Audio
Number of Channels	2
Output Power	2E+2 Watts
Package Type Name	box
Specification Met	FCC
Material	Aluminum Alloy
Model number	BL20A
Colour	Blue
Number of Memory Sticks	1
Item Weight	889 g
Product Dimensions	11.99 x 8.99 x 3 cm; 889 g
Item model number	BL20A
Item Height	1.18 Inches
Item Width	3.54 Inches
Output Wattage	100 Watts
Power Source	corded electric
Are batteries included?	No

Have a Question? See What Others Asked

How can this amp deliver 200w (output power: 50w+50w+100w) if the power supply only delivers 100w? at the same time it says the psu is ’matched’?

How can this amp deliver 200w (50w+50w+100w) if the power supply only delivers 100w?

Can i use an a/b switch at the input to switch between a cd player,and,a turntable?

if I turn up the master volume does the sub volume increase with it, or do I need to adjust the bass volume to not be drowned out by speakers

Common Questions

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