nicholars
Headphoneus Supremus
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Could someone describe the differences between tube and solid state amps in terms of sound differences between bass, midrange and treble areas of the two technologies?
It seems very likely that amplifiers with the same frequency response (into the given load) which do not grossly distort or introduce noise or hum are indistinguishable
Headphone amps are however “compared” with loads varying from 16 – 600 Ohms and nominal sensitivities from 88? – 106? dB/mW so many amps which may drive some phones cleanly will be clipping from either V swing or current starvation with other headphones when trying to reach the same SPL
Generally headphones are rather more constant in load impedance vs frequency than most multiway loudspeakers – but headphone amps may have near 0 up to 120 Ohms series output resistance
Headphone frequency response variations are so huge compared to the 0.1 dB frequency response matching criteria from DBT that it is hard to imagine comparing them for some absolute accuracy or even equivalent “sound” without substantial frequency response equalization
So it should not be a surprise that headphone amp/headphone combos have major audible differences – while still accepting that headphone amps with enough V, I capability could be trimmed for frequency response and output Z to be indistinguishable with a given headphone from any other specific amp that is also working cleanly into the same load
http://www.diyaudio.com/forums/showt...392#post152392
http://en.wikipedia.org/wiki/Bob_Carver
No differences.
And it all depends on different design and built quality.
Each tube amp and SS amp has it's own character, so your question is quite meaningless.....
SS may sound faster but Tubes beats SS in speed hands down. However, Tubes have pretty extreme roll offs on both freq. extremes. Tubes bass is slower and probably lack the slam and attack that SS can offers. SS sounds more detailed and it extends higher.
What Tubes have and SS lacks is immediacy and portrayal of leading edge to notes in the body of music, the mids. Speed isn't really dictated by bass, that's just pace and rhythm to be exact. Speed starts at the micro dynamic level and and from that prospective one feels Tubes are slower but it is because you are hearing so much more from each individual note, word etc. This is very addicting and truly lifelike!
Having said all that, there is a convergence in the last 5 years or so in similarities in sound signatures in Tubes and SS, with Tubes having better extensions and SS better immediacy and portrayal of nuances.
OOH I am a SS follower but can appreciate the addictive nature of tubes.
the idea of "tube sound" and the strawman "all amps sound the same" are both too simple views of the real world
electric guitar tube amps used for music creation the clipping, feedback nonlinear performance "details" clearly differ in "sound" produced
for home music playback we generally don't want these effects added to all genre of music so even tube amps are operated in their linear range, clipping is avoided, microphonics is identified as a "flaw" not a feature
some believe that high output impedance, low damping factor, "soft" distortion can give a "tube" character - but a solid state amp can be designed to give similar effect
"tube sound" memes are deeply embedded in Audiophile commentary - but "expectation bias" and lack of psychoacoustically valid critical listening make it possible for any "socially constructed" position to survive far beyond any physical justification
does im compared same tone sounding hybrid vs solid state amps and sound is very identical,but fom solid state i feel fatique a bit from longer litening,from tube amp listen for hours and nothink. thats mean i must sell solid amp and keep hybrid?Generally, tubes sound warmer.
does im compared same tone sounding hybrid vs solid state amps and sound is very identical,but fom solid state i feel fatique a bit from longer litening,from tube amp listen for hours and nothink. thats mean i must sell solid amp and keep hybrid?