I forgot to add that the HA-300 is really sensitive to wifi signals and had to relocate my wifi router. Other than that, I don't really have any issues with any hum or noise.
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I forgot to add that the HA-300b is really sensitive to wifi signals and had to relocate my wifi router. Other than that, I don't really have any issues with any hum or noise.
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Back from the honey moon phase and now I no longer love the stock 300b after swapping it with a pair of Gold Lions PX300B.
I must admit the stock TJ Full Music 300b/n were slightly more transparent, faster and had deeper/punchier bass than the GL, but at the cost of being too sizzly/shrilly with vocals! The GL on the other hand is very balanced with better depth and soundstage!
One of my of stock TJ 300b/n glass is bigger than the other and I noticed a chip on the ceramic base of the tube. I'll try a different mesh type 300b from another brand tube next time.
I'm still at break in period with the GL at less than 100hrs and I'm sure these will loosen up a bit more in a few days.
Later today I'm swapping the stock Shuguang WE6SN7 with a pair of Psvane CV181-TII and will give a brief impression on them.
Overall I'm very satisfied with the HA-300 and I already sold my IHA-6 because it'll just collect dust. I'm pretty much done with solid state amps!
300B is truly a magical tube and I can't wait to try more!
Just got it yesterday so still breaking in but with a brief listen, I am left speechless with Utopia!
First thing I noticed is the gobs of resolution this thing spits out and the thunderous slam and bass yet its not muddy nor bloomy!
The level of transparency, layering and clarity is almost SS-like and made me not want to listen to my IHA-6 anymore. I never knew a tube amp is able to go toe to toe with a good SS amp!
Soundstage is very open, airy and I get a better sense of depth. It paired really well with my Holo Spring and it didn't ruin its holographic nature.
I'll add more later when its fully broken in but so far it has exceeded my expectations and made my Utopia show its true colors!
Back from the honey moon phase and now I no longer love the stock 300b after swapping it with a pair of Gold Lions PX300B.
I must admit the stock TJ Full Music 300b/n were slightly more transparent, faster and had deeper/punchier bass than the GL, but at the cost of being too sizzly/shrilly with vocals! The GL on the other hand is very balanced with better depth and soundstage!
One of my of stock TJ 300b/n glass is bigger than the other and I noticed a chip on the ceramic base of the tube. I'll try a different mesh type 300b from another brand tube next time.
I'm still at break in period with the GL at less than 100hrs and I'm sure these will loosen up a bit more in a few days.
Later today I'm swapping the stock Shuguang WE6SN7 with a pair of Psvane CV181-TII and will give a brief impression on them.
Overall I'm very satisfied with the HA-300 and I already sold my IHA-6 because it'll just collect dust. I'm pretty much done with solid state amps!
300B is truly a magical tube and I can't wait to try more!
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The Utopia is very much like the Abyss Diana.
They match Really really well because they are so transparent, and the Cayin is so dam musical.
It increases the size and power and life of the headphones.
I was listening to the Cayin 3days ago at a friend's house, so memory still fresh.
The euphoric nature of the amp, is extremely well done, because it is ever so slightly richer than a 2a3 amp, while being extremely resolving so you only notice how musicall it is.
Especially with highly resolving headphones.
It makes the HD800 scale higher than I have heard before.
You would never say the HD800 lacks any bass with this amp.
Wait till your tubes burn in and the trebles become optimal.
Happens to all new tubes, you gotta burn them in.
Stock driver tubes highly musicall, but take a while to burn in...
If your not patient,
roll in some old stock Tung-sol in driver tube spot, you get an instant slap of dynamics and stage.
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I actually got the Gold Lions even before I got my amp. I told myself I'd only stick em in when the stock tubes gave out -- turns out I was just lying to myself. Slapped em on 3 days ago! Sound stage is primarily where I sense the improvement... Didn't get to A/B with the stock ones though but I'm not sure I still wanna go back.
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Well, consider you bought the Utopia and Dana lazuli almost immediately after you bought our HA-300, I don't think can stand the temptation to NOT plugging the GL into HA-300 right away. I think you are doing very well already if you only do that 3 days ago.
Can the 6F8G tubes with adapters be used instead of the 6SN7?
Can the AVVT AV32B SL be used in this amplifier? I think these are equivalent as the EML 300B-XLS
http://www.jacmusic.com/avvt/datashts/av32b.htm
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Glad you mentioned this. Whenever HA-300 user approach me with a hum/hissing problem, I'll ask him to check if there is a RF signal in the circuit (e.g., antenna input to TV or STB) or nearby, Most Solid State amp users will not understand the Direct Heated Triode tube amplifiers are typically sensitive to RF interference.
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I have had different experience.When properly design and built, tube amplifier can definitely compete with Solid State amplifiers on almost every aspect (well, maybe except background noise) and at the same time offers impressive musicality and much longer continuous listening duration.
I remember you guys had them all in Cayin room at CanJam NYC.The result with Planar is mixed. Susvara, Thror (Kennerton), Empyrean and D8000 sounds very good but Abyss, HEK, Ether Flow are not as outstanding. I haven't try Audeze yet and I am looking forwards to that,
Yes I have MK8 which was nice upper mid-tier level in stock form,, you are MK6+ and MK8se users? I owned MK6+ previously and had written a very long review for MK6+ vs MK8se before I join Cayin, they are marvelous headphone amplifiers.
Wander where you are located? Little Dot has limited circulation outside China
I don't know how long it takes the stock tubes to fully break in, and they are a very nicely balanced selection,Sound stage is primarily where I sense the improvement...
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