Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel Mini Hi-Fi Class D Integrated Amp 50 Watt x2+100 Watt for Home Outdoor Passive Speakers/Subwoofer Powered Subwoofer

Q: What is the subwoofer frequency crossed at?

According to the Fosi site, the 'sub freq' knob does exactly what you would expect, acts as a variable crossover point control. ""...adjustable 40-300Hz cutoff frequency for subwoofer... It doesn't say what the slope of the cutoff is.

Q: Are they screw fasteners for the speaker wires?

The unit has a set of combination binding pot/RCA connections. So it will accept bare wires or RCA connectors for your speakers.

Q: has any one used this with a non powered sub, and did it sound OK ?

William, I have this Fosi amp for a small patio sound system. I do have a sub speaker but it is powered and not passive. I am 100% satisfied with the sound of my system. The Bluetooth works great as well as the aux input. This however does not answer your question but I may give you something to consider. According to Fosi specs, the rated output is 50 watts + 50 watts + 100 watts. I deduce that to mean 50 watts for each left & right speaker and 100 watts for sub speaker. That should be a sufficient 2 to 1 ratio for output division. Fosi also states that the output can be increased with an option 8 amp power supply, but they don’t state exactly how much the output increases. Whether or not a passive sub speaker would “sound ok” has many other variables, ie: size of speaker, sensitivity of speaker, speaker material, type of enclosure that houses speaker, if the enclosure is ported and if the port is tuned properly, if speaker is front firing or down firing, acoustical environment, etc, etc. It is possible a passive mode that the sub speaker may not “sound” satisfactory but may not be the fault of the Fosi amp. I hope this was helpful.

Q: I see in some reviews that there should be a bluetooth/rca switch on the back , but no switch exists on mine. how do i switch to bt and pair it?

For the BT30D theres a power switch on the front. When you turn it on it activates the Bluetooth, but uses the RCA jacks until you actually pair a device via Bluetooth. Just unpair the Bluetooth if you want to use a turntable or DAC.

4.4/5

Product ID: 322368099

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Details

Item dimensions L x W x H
13.2 x 12 x
Voltage
230 Volts
Manufacturer
Fosi Audio
Maximum supply voltage
24 Volts
Minimum supply voltage
24 Volts

📶Bluetooth 5.0 range

🔊200W max power

🎚️Bass/Treble control

Frequently Bought Together

Fosi Audio BT30D Bluetooth 5.0 Stereo Audio Receiver Amplifier 2.1 Channel Mini Hi-Fi Class D Integrated Amp 50 Watt x2+100 Watt for Home Outdoor Passive Speakers/Subwoofer Powered Subwoofer

FosPower Banana Plugs 10 Pairs / 20 pcs, Closed Screw 24K Gold Plated Speaker Plug Connectors for Speaker Wire, Wall Plate, Home Theater, Audio/Video Receiver, Amplifiers and Sound Systems

Kinter Cable 100ft 16-Gauge Audio Stereo Speaker Wire Cable, 100 Feet, 30.48 Meters, 2 Conductor, Polarity Marked, Flexible Clear PVC, CCA, Home Theater, HiFi, Surround or Auto Amps

Description

🎶 Elevate Your Sound Experience!

UNLEASH THE POWER - Experience a booming 200W output for immersive sound.
SEAMLESS CONNECTIVITY - Bluetooth 5.0 ensures stable streaming up to 50ft.
VERSATILE COMPATIBILITY - Works effortlessly with smartphones, tablets, and more.
TAILORED SOUND EXPERIENCE - Customize your audio with Bass and Treble controls.
COMPACT DESIGN BIG IMPACT - Mini Hi-Fi design fits anywhere without sacrificing performance.

The Fosi AudioBT30D is a powerful 2.1 channel Bluetooth amplifier designed for home and outdoor use, delivering up to 200 watts of audio power. With Bluetooth 5.0 technology, it offers a stable connection and a streaming range of up to 50 feet, making it compatible with a variety of devices. The amplifier features advanced sound controls, including Bass and Treble adjustments, ensuring a high-fidelity listening experience.