Amplificateur à tubes Bluetooth 500W Hi-Fi Son 4 tubes à vide Entrée USB/CD/DVD

This might be dumb but would I need a pre-amp to hook up my turntable?

Yes you would need a phono preamp

What is the weight of this amplifier? (PVTA 80 BT tube amplifier)

Weight: 13.37 lbs.

I have two 20-150 watt, 8 ohm speakers I also have around 30-50 watt passive sub woofer Can pvta80 be good for this setup? If not can you suggest few other options? How is tube amp wattage different than regular solid state amp ?

This unit will work with your 20-150 watt, 8-ohm speakers. However, you would need a powered / active subwoofer
How is tube amp wattage different than regular solid-state amp? It's the same. However, tube amps the more it heats up the better it sounds but the solid-state amps need to be cooled/vented

What specific tubes does this amp use? (eg 12AX7)

This information is not readily available
Please contact us through our email support system to further assist you. Simply Go to pyleusa.com click on the CONNECT tab then on the drop-down choose Contact Us. Fill out the form and in the last part, you will have an option to write your Subject, and also on the comment box, you can write your concern about the product. Please allow at least 12 to 24 hours for someone to get back to you. You can also contact our support hotline at 718-535-1800 ext 2 during weekdays from 9 am to 6 pm EST

I hooked my PT 80 it seems that it reverse polarity on my polk bookshelf speakers it pushes the inwards instead of outwards polarity on speakers are correct. Whats the problem with this amp. I want to return ti Amazon for another.is this not normal. Ran it both 110v and 220v no avail?

If you notice any issues regarding the unit you can ask for a replacement from the seller where you purchase the item

Why there in no Bass & Treble controls?

Please contact us through our email support system to assist you further with your concern. Simply Go to pyleusa.com click on the CONNECT tab then on the drop-down choose Contact Us. Fill out the form and in the last part, you will have an option to write your Subject, and also on the comment box, you can write your concern about the product. Please allow at least 12 to 24 hours for someone to get back to you. You can also contact our support hotline at 718-535-1800 ext 2 during weekdays from 9 am to 6 pm EST.

Do the PVTA80 and PVTA90 incorporate an AM/FM tuner?

https://www.amazon.com/Sangean-HDT-20-Radio-FM-Stereo-Component/dp/B01BY02C5K/ref=sr_1_5?crid=2KKHQNR9XD5V6&keywords=am+fm+tuner+receiver&qid=1668203663&sprefix=AM+FM+tuner%2Caps%2C591&sr=8-5


connect to the CD DVD input