I really like the Loxjie P20, I changed the tubes because the stock ones are MEH, although other reviewers have commented they sound OK. I purchased the GE JAN 5670W tubes from Amazon. I use this as my table side headphone setup in the family room. I use the BLT-HD Bluetooth receiver and stream Sirius or apple music from my phone. For such a small package this is a great setup. Check the reviews and pictures on Amazon.