I ended up using two of these for an unintended use - as external amplifiers for my surround sound (Polk LSiM 702) and as height speakers (Klipsch R-41M) to relieve my Denon X3200W receiver . I originally bought these to drive several headphones and they do very well for this purpose with the smooth sound of a class AB amp. I have a GE 5670w bulb on one of them and I would say the standard bulbs are fine. The advantage of my setup is that I switch the input to AUX when watching movies and to BT when I just want to listen to music through my LSiM or Height speakers. My LSiMs are quite difficult to use and I'm very impressed that they have enough power for average listening levels. The all-new Dayton Audio HTA50BT is a little better if you're willing to spend more on headphones. My Dayton Audio HTA100BT is the best AB class amp I have (no headphone out) but both are double the price of this unit. Update: I ended up buying a third device. It looks like I'm pumping out all the previously used units. Upgraded them all to a GE 5670w tube.
Upgrade Your Desktop'S Memory With Timetec 32 GB DDR4 2400MHz RAM - Non-ECC, Unbuffered, Dual Rank, 2Rx8, 288 Pin UDIMM - (32GB KIT(2X16GB))
36 Review
Upgrade Your Laptop'S Performance With Timetec'S 4GB DDR3L / DDR3 RAM At 1600MHz Speeds - Non-ECC, Unbuffered, Dual Rank, With 204 Pin SODIMM - Low Voltage 1.35V / 1.5V, CL11 (4GB Module)
37 Review
Upgrade Your Laptop With Timetec 16GB DDR4 2133MHz Memory Kit - Non-ECC
32 Review
TEAC CD-RW890MK2-B Home Audio CD Recorder With Bluetooth - Black
38 Review
Sangean PR-D4W Portable Weather Alert Radio with AM/FM Bandwidth Narrowing and Auto Tracking for Improved Searchability
12 Review
Stream Your Favorite Tunes With AUNA KR-200 SI Internet Kitchen Radio - Spotify Support, Remote Control, And More!
15 Review
Radio receiver Max MR-322 anthracite
14 Review
Experience Dynamic Audio with Panasonic SC-UX100 CD & USB Wireless Bluetooth 300W Mini Hi-Fi System Shelf Stereo
19 Review