L5000 here on generous loan for a week. The L3000 are mine, and have been a longtime favorite. Actually they were my very first "super-favorite" headphone, going back ~ 18 years ago, that got me super-addicted to this hobby!
The L3000 are a masterclass in demonstrating that relatively large amounts of distortion can still be musical IF it's the right kind (which is very hard to do). Very much like a classic tube amp. So charming!
The L5000 are technically better. More detail, cleaner bass (still nice and punchy). Lovely mids. A bit bright, but not in an offensive way that detracts from the musical flow. But in my experience, no dynamic "moving coil" headphone can compete with the technical acuity of omega-type electrostatic headphones (especially 009) when well-amped (which is admittedly very hard to do). So personally, I now look for an unquantifiable "charm factor" with dynamic headphones. The old L3000 easily makes the grade. The L5000 gets very close, but I'm not sure they do enough to make me want to buy them given the steep pricing (respecting that everyone's preferences are different). Both of these Leatherheads are more charming than the Denon D92000, which I found inoffensive while doing a lot right, but somewhat unexciting. At the end of the day I'm impressed by the L5000, but happy with my L3000. The L3000 are still one of the ultimate hard rock headphones. A polar opposite of the OG MDR-R10
The L3000 are like an "audiophile bass-head's" headphone. They have overdeveloped bass. It blooms. It will certainly measure at a high level of THD (distortion). But somehow it distorts and blooms in ways that only serves the music. I can't stand thumpy / thwacky, subwoofer-like bass. I hated the the Sony MDR-Z1R at all. I don't like the Magico A3 speakers (example of the kind of bass I don't like). I don't use a subwoofer in my 2ch. This is NOT that kind of overblown bass. It's musical and tuneful. I shouldn't be enjoying such an obvious exaggeration so much, but it gives the feeling of a REALLY good 2ch system's bass. It's kind of a magic trick. Anyways, the L5000 has a bit less bass overall, but still more than enough to satisfy. It's cleaner; fast and punchy. Hits nicely. It blooms a little, but not like the L3000. It's lovely too. Which do I prefer? If pushed, probably the L3000. I have electrostats for the super clean bass
The fit of the L5000 is a little bit off on my head. Not a very good clamp/seal near the top of my ears. The headband arc is too wide and sharply curved. Audio Technica has had this problem before, especially on the absolutely awful W5000 "Raffinato". Sometimes these esoteric Japanese builds suddenly forget how to fit an American head. The L3000 fits better. Perhaps a better fit could affect the sonic balance.
GEAR:
- Amp: Headroom Max Balanced. This amp is so overlooked, and so good.
- DAC: Phison PD2 SE v2 preamp + DAC. Phison is a small Danish high-end manufacturer that makes some seriously nice 2ch gear which still flies under the radar. The Phison absolutely spanks my Yggdrasil A2. It's significantly elevated my headphone listening experience.
- Source: Sony Walkman NW-WM1Z, USB dock, Audiophilleo 2 Mk II w/ PurePower
- Cables / Power: Audioquest Sky XLR, Audioquest Coffee USB, Audioquest NRG-1000 power cords, Audioquest Niagara 1000 conditioner
* After I gushed on the L3000's bass I should mention that perhaps the designer pushed the drivers a bit further than their capability. There were various rattle issues on some units. Having replacement drivers on hand is a huge asset.