know this is a DAC/AMP, and I know this is a solid-state Amp

You're getting a basic solid-state pre-amp with pretty blue tubes, just know that's all the tubes

Get a nicer solid state amp for more money

To all the kind souls informing me that the seller is now stating this amp is solid state, when I made my purchase on 10/5, the seller had answered another question about if it used only tubes or was also solid state with a definitive "Tubes, no solid state

Having said that, it does a great job driving my big Sennheiser Pro headphones, and has the warm sound indicative of tube amplifiers, without the shrillness of solid state designs.

This is essentially a waaaaaaaaay overpriced 1W solid state amp with tubes for looks

not disappointed with my purchase, but if it's a solid state amp it should be advertised as such

Apparently Nobsound has been called out for this in the past, building products they market as "tube " amps that are actually solid state amps with some tubes in the front

Were you to open the unit up and look inside (like I did) you would find that the preamp stage is tube, and the output stage is solid-state

in depth YouTube "teardowns" torture four about 24 hours as stated earlier

The power output section is solid state so it isn't a true push/pull tube device

The amplification is done by a pair of solid state op-amps

Defiantly adds some tube sound yet has the power of a solid state headphone amp

Solid state amps came in to the audio scene in the 50's

Its a cathode follower setup as a buffer for the gain on a couple of solid state opamps.

Yes, it is a hybrid (tube preamp, with solid state amplification)

I am so convinced now that I am getting rid of my solid state stereo pre-amplifier and will be purchasing a nice vacuum tube stereo amplifier.

I generally go for solid state amps over tube designs, even hybrids like this one, but for the price, giving this a shot is a no-brainer, and I couldn't be happier that I did

All the work and drive is being provided by two small solid state op amp ICs.

The solid state section does the work.

That unit has an extremely good solid-state headphone amp in it, plus a very good DAC, does not require an external power source, and IMO beats the Dragonfly Red (I have both)

A solid state power section usually offers lower total harmonic distortion than tubes (unless you spend enough money for good used car on a true push/pull amp)

I am afraid I may have become addicted to tubes, I don't like listening to my solid state amp any longer.http://www.amazon.com/Nobsound%C2%AE-stereo-Pre-AMP-Preamplifier-Adapter/dp/B00WSB271E/ref=cm_cr_pr_product_top?ie=UTF8

n’t go wrong on any of it

I have been rather interested in trying this amp out with with Soviet era vacuum tubes and I was shocked as to how good they make this amp

n’t go wrong on any of it