Best sounding headphones you have owned?

State of the art sound for a relatively low cost is one of my headphone systems:

• RAAL CA-1a (like regular headphones, unlike the RAAL SR1a) ($2000 naked version)
• RAAL TL-1a speaker adapter box ($800)
• Schtt Mjolnir preamp ($1100)
• Schitt Aegir amp ($800)
• Benchmark DAC3B ($1700) (dual duty with my 2-channel)

This above setup is so good that I threw out all the shipping boxes. I live close by to RAAL and Schitt if service is needed. I cannot easily sell this gear now. I also use the more expensive RAAL SR1a phones with the above setup. 

😊State of the art sound for a relatively low cost is one of my headphone systems:

Hidizs dac+equalizer+battery= 200 bucks...( low noise floor)

Sansui alpha 607i = 300 bucks ( one of the best amplifier ever designed by Sansui)

AKG K340 the only really hybrid headphone ever made ( the electrostatic cell is not a super tweeter as in the Dharma case) = 100 bucks ...

The K340 optimized( it takes me 6 month to figure out his working) can give an out of the head speaker like experience with natural timbre perception and deep bass ...

At 600 bucks i beat everyone ... It is my main audiophile system ... Even if i like the small speakers system i own ( low cost) which modified beat all headphones i ever listened to save the K340 ..

I apologize to yyzsantabarbara for my irresistible urge to bragg about my own low cost high end system ...😊

I am sure he will laugh and forgive me , thanks to him ...

I am certainly curious to listen to the Raal ... I will be afraid to buy one without listening before so astounding are my K340 the best headphone in the world in 1978 even better than Stax because of deep bass and out of the head experience with more natural timbre thanks to the passive internal resonators of Dr, Gorike and his complex dual acoustic chamber accomodating the two cells dynamic and electrostatic one behind the other ......

Didnwn them, but best i heard was Hifiman connected to 2 unit Woo Audio amp

Which Hifiman model ?

I try to like the He 400 but never succeed even after modifying them ... 😊 For sure they are not the best Hifiman but not the worst either ... Artificial timbre inside the head ...

Didnwn them, but best i heard was Hifiman connected to 2 unit Woo Audio amp

RAAL SR-1a driven by their VM-1a amp, with a Lumin X1 as the source. This gets me the closest to a 2-channel speaker setup as I've heard, and in some respects, rivals it as well.