EL84 Tubes for Glow Audio Amplifier


Two years ago I built some custom 2.8 cubic foot speaker cabinets for top of the line Audio Nirvana 8" Alnico full range drivers, which I put in my approximately 16 x 20 bedroom. These are super efficient 96+ speakers that don't need much power. I was using my back-up 200 watt B&K Sonata Mono Amps to drive them, which was over-kill. I recently purchased a Glow Audio Amplifier, which produces 5 watts per channel. The stock EL84 Chinese tubes in the Glow Audio were not very good sounding compared to the B&Ks.

I purchased the new production EL84 Mullard tubes, which Glow Audio has on their site as an upgrade. These Mullards did make a night and day difference and really do sound great with Patricia Barber and other jazz singers/groups on both my Denon 110 Anniv and tube modified Oppo SACD players (each player has different characteristics that I like for different music). 

I have not tried any other EL84 tubes on the market to know if there is more to hear. I was going to buy more back-up Mullard tubes, but was wondering if there were recommendations for something else. I haven't found many reviews for the EL84 tubes, except related to use with guitar amps.

Because of past problems with purchasing NOS tubes, please don't steer me that way. I really would like to know if there are any new production EL84 tube recommendations.
kevine
FWIW, I prefer TAD EL84-STR tubes to Gold Lions, new production Mullard's, and the stock tubes Decware ships with their SE84UFO. Best of luck.
Thank you for all of your responses.

None of the responses recommended the Mullards, which is helpful to me.

I'm leaning toward buying a pair of JJs and Gold Lions to compare with the Mullards.

I just googled the TAD EL84 and got all kinds of mixed reviews. Does anyone else have experience with this tube?