Fosi Audio BT30D-S 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

I connected this small amp to my custom PC for the past 2 years and some change. I have not had any problems with connectivity, sound, and performance period. It's strong enough to power an 8-in 100W Yamaha sub along with 2, 5-in speakers. The sound is amazing. I can't speak for all, but for me this unit has been a workhorse.When it comes to Bluetooth connectivity, that's subjective and also it has to do with your personal device. It sports Bluetooth 5.0 so in theory it should handle connectivity pretty well. But if your phone doesn't match that version of Bluetooth, you won't get the performance you expect. That's how Bluetooth works. It'll revert back to whatever version your mobile device has. The range is 50 feet, but that's assuming no thick walls, moving from one room to another and going to other floors within your household. It's a radio signal after all. Anyone complaining about losing connection needs to understand how the tech works. For me, it works and I typically leave my phone is one place.I'm actually going to pair it with a Fosi DAC K5, since I heard good things about it. I need to enjoy good quality audio in my headsets too and not try to annoy my neighbors.

Have a few old speakers and a subwoofer laying around? then you're in luck. This Audio Receiver Amplifier makes use of all three. You can use a powered subwoofer or just connect the red and black leads to a non-powered one. How cool is that!Back to the ability to use a subwoofer. in short, the sub woofer is a game changer for sound fidelity. 2 speaker only Amplifiers simply cannot compete.so if you're looking to full your office or a big ol room with great sound. get this Stereo Audio Receiver Amplifier. The silver look is very stylish too.oh and the Bluetooth. it connects FAST. just select the this Fosi Amplifier in your available devices and it connects instantly. and all devices I tried work great. Apple, Android, super old versions of Android even my flip phone connects fast.this is a great Stereo Audio Receiver Amplifier. Highly recommend!PS: you will need to purchase (if you don't have) about 6 plastic banana plug connectors to connect your audio leads to the amp but you can get a bunch of those cheap on amazon too. Just don't forget to add them to your cart as this amplifier does not ship with any in its packaging.

I used this to replace a much larger amp and preamp on my desktop. The big attraction was the ability to control an active subwoofer. I have a WiiM ultra that I use as a dac and preamp. I have found that the Bluetooth connects easily to my computer. The sound is good enough for computer use via Bluetooth and I don’t have to mess with the preamp.This amp would be even better with newer Bluetooth and support for audio codecs like LDAC and aptx.Overall sound is great with small near field speakers and a subwoofer. It’s easy to modulate the subwoofer volume and crossover direct from the amp. Easy control of an active subwoofer is why I got this model instead of the pro.

Hooked up this tiny amp to a pair of older Polk Atrium45 speakers and the subwoofer output to a Velodyne 10" powered subwoofer. Bluetooth connected easily with phone to play some tunes. With Bass & Treble at mid-setting, sound had crisp, clear midrange and highs, but boomy, heavy bass. Bass control did little to reduce boominess... needed to adjust volume on back of Velodyne. Bluetooth range was OK for most upstairs rooms, but did drop out. Considering wide choice of powered sub-woofers available today, having a subwoofer line-level output is a great feature. Bravo!

For the price no complaints. Great sound for my office. It allowed me to gain space by replacing a full size a/b receiver.Happy Customer!

The media could not be loaded. I have owned 2 other older fosi audio products and loved them. I even have an older version of this exact model and love it. HOWEVER- For some reason these newer BT30’s have subwoofer humming issues. I tried 3 different BT30s, hoping it was just a faulty individual item. Nope, all three failed. (I know because the older BT30 had no issues in the same set up, and I tried them all on multiple subs.)Then, I tried working with the manufacturer to address the issue and they were absolutely terrible with troubleshooting communications. Seemed like they didn’t even read my emails and would just copy paste stuff that wasn’t helpful… huge waste of time. I really hope they address the issues with these new models AND improve their representatives ability to help their customers, because my older models were great.

I only just plugged it in so I can't speak to durability but it powers my Klipsch RP 8000F II tower speakers very well! I did have to crank up the volume to get the speakers up to my desired volume but that doesn't bother me. I'm only just over the midpoint on the bass knob and maybe 65% on the treble (all based on personal preference). I plan to add a subwoofer and that might improve the sound even more. I played Apple Music and Prime on it via Bluetooth from my iPhone. I also plan to use it as a soundbar replacement for a TV via Bluetooth. It sounds great to me as a non-audiophile novice. It works excellently as an extremely affordable temporary solution until I decide on a full fledged AV receiver or processor + amplifier. Highly recommended! Some have commented that it's hard to read the lettering on the silver version. This is true but there aren't that many words to read and remember! The tradeoff is that the silver looks (much) more high end to me than the black. Get it and enjoy!

Unless you get a preamp with volume control to amplify the output you will be underwhelmed. The amp also introduces noise in a turntable with or without a phono preamp. Kept it as it has active/passive outs to a sub.