1960 Brimar 12AU7's in xDuoo TA-20


Dec 28, 2020
Very nice 👍, sound?
Dec 29, 2020
I'm not very good at analysing audio impressions, but these Brimars sound very natural and revealing. The low end is solid without being over emphasized. The midrange sounds quite realistic, and I cannot really give a meaningful impression of the upper end because my hearing rolls off a bit too much there. In general, I get a very realistic and musical presentation with low to moderate volumes. So far I've only been playing digital source, but I will move the unit over to my audio system and listen to some vinyl. With more time I will listen to a broader range of music for a better impression. I'm also swapping in a pair of NOS Sylvania long plate 12AU7's, and in a few days I should have a matched pair of NOS RCA clear tops from that same period. At this point, the only thing I can say with certainty is that the Chinese OEM tubes have a less realistic sound. I wouldn't say they are harsh, but perhaps more sterile and less organic sounding.
The RCA Clear Top tubes work pretty good in the TA-20, especially if you've got cans that are on the darker side of things; needing less bass and more top end sparkle. I found them to have a bit more treble focus than the current production ElectroHarmonix 12AU7A and Gold Lion B749. Nice sounding, just a touch prone to making my sibilant cans... even more so. YMMV there. I ended up rolling over to current production JJ ECC802s and sticking there, purely because I like the JJ extra long plate sound. More bass and mids. If you haven't gotten a set already, they're pretty worth checking out. Can be had for pretty cheap if you don't care about gold plated pins. You nailed it on the head about the Chinese tubes. I absolutely can't stand them in HiFi. I'm sure they'd be fine if I was rocking them in a guitar amp (and I didn't have any tube specific breakup preference), but in stuff for serious listening they're a bit too airy and uncontrolled for my taste. Plus there is the problem that most of the cheaper amps (sub $2000) out of china come with unmatched and barely tested tubes. They'll generally work, but they got no balance, and may have wildly different levels of amplification from tube to tube unless you're buying from a vendor who cares (matches).
Trending Posts in Audiophile
What Amp???
Hello audiophilers!! While I am waiting for my first bought item from Drop (can't wait!!) I was planning my next purchase ;-P... An amplifier... I wander which is better among the Drop O2 and drop+thx
Jul 4, 2022
Hello guys
How are you?
Jul 4, 2022
Jul 3, 2022
BUY XANAX 2MG ONLINE LEGALLY OVERNIGHT DELIVERY USA When a person BUY XANAX 2 MG online, the most prescribed method of intake of the drug is taking it through the mouth. The amount of prescribed dose of the drug depends on a number of factors like the person’s medical history, age, and response to treatment. The xanax dose may be gradually increased until the drug does not start showing its effects. Withdrawal symptoms may occur if the intake of the drug is stopped suddenly or abruptly. To prevent withdrawal symptoms from occurring, the prescribed dose may be gradually increased as mentioned earlier. The drug may cause the person to develop abnormal drug-seeking behavior and this may increase if the person has been addicted to drugs or alcohol in the past. BUY NOW CLICK HERE What happens if I miss a dose? In case a person misses a dose of XANAX 2 MG the person should take the dose as soon as he remembers about it. However, if the time to take the next dose is nearby, the missed...
Jul 3, 2022
You only live once.
Let your ears fly!!! Vuela Vuela.
Jul 3, 2022
Swedish shipping
Has any one whos swedish ordered from here ? Does it come with dhl or post nord ? Thanks in advance
Jul 2, 2022
An upgrade to my Little Dot MKII
I made the decision to upgrade my modest Little Dot MKII Tube Amplifier this past week and it just got here yesterday. This is a used piece of gear, it's the first generation Woo Audio WA6. I wanted to go with Silver as it would match my Solid State Burson Conductor 3 Performance Headphone Amp/DAC/Pre-Amp, as well as the Schiit Lokius I also picked up recently. I wound up with Black; it was in the best condition of those I saw available, it was priced better and it came from an audio dealership with a brick & mortar store which displayed a working telephone number and an A+ rating with the BBB so I knew that I was probably safe in dealing with the gentleman. The Lokius is brand new. What I've learned is that I am going to have to do some figuring out how to deal with all of this new stuff, including how to get it all onto my 6 foot desk along with my lamp and modem. Apparently the Lokius has to be connected between Amp and DAC, so it would fit in between...
Jun 30, 2022