Don't know specifically about the 5U4GB, but Mesa simply re-labels ordinary, current production stuff. Their 12AX7 is Chinese and the 5881's are Sovteks. Having listened to both of these "Mesa" tubes I guess that you would do better with NOS, even with a rectifier tube. FWIW.
Which best 5U4GB rectifier tube- Mesa Boogie or ??
New to tubes here and have a pair of 300b SET 8w monoblocks. I'd appreciate your learned opinion of which of two rectifier tube choices would be best. And if you could tell me what differences might be hearable between the two, all other things being equal, it would be appreciated.
The tubes I have are (1st) new Mesa Boogie 5U4GB and (2nd) used PhilipsECG 5U4GB. The Philips lable looks like this:
JAN 5U4GB
PhilipsECG 8652
34167 USA AAX
Your comments are appreciated.
Happy listening!
The tubes I have are (1st) new Mesa Boogie 5U4GB and (2nd) used PhilipsECG 5U4GB. The Philips lable looks like this:
JAN 5U4GB
PhilipsECG 8652
34167 USA AAX
Your comments are appreciated.
Happy listening!