Here’s a quick Letshuoer double-header: the single-DD DX1 ($160) and the hybrid Cadenza 4 ($250). Thanks to AudioGeek EU for organizing the tour! I just listened to these ones breifly, so take this as a first impression.
DX1
The DX1 has an 11mm aluminum-magnesium dynamic driver with 108dB/mW sensitivity and 30Ω impedance. Bass isn’t high-volume, but high quality. Exceptional subbass extension for a single DD with satisfying rumble. Good bass balance even though it’s not forward in the tuning, with a nice bit of physical impact to the midbass. Not a super technical set.
Vocals sound a bit relaxed - I’d like more presence and bite. Despite that, very natural sounding male and female vocals. Smooth, there is some treble energy, but nothing sticks out or is sharp. Not much air or sparkle.
Nice for the price, especially for great subbass extension and relaxed vocals, while still keeping some treble energy. Very efficient and easy to drive. Shell is heavy but small, so it fits nicely.
Cadenza 4
The Cadenza 4 uses a 10mm beryllium-coated DD with three BAs (1 Sonion + 2 Knowles) with 102dB/mW sensitivity and 15Ω impedance. The C4 is a bit like a mini Mystic 8 in terms of vocal presentation, just much less refined and with less extension on both ends - subbass and air. For the price, good technicalities: detail retrieval and separation. This is a great set to sample the great vocal timbre you hear in LS’s more expensive sets like Mystic 8, Cadenza 12, and the upcoming EJ10.
I like them, but they’re a touch spicy in the treble for me. I prefer the DX1 bass, but the vocal timbre is much better on the Cadenza 4: more forward and engaging, while DX1 is more relaxed. Bass was okay, nothing standout. Brings a nice bit of punch without sticking out too much in the mix. Not that sub-bassy.
I prefer the Cadenza 4 over the DX1, especially for the more engaging vocal timbre, but it does cost $100 more. The DX1 bass did impress me though (not a basshead set by any means, of course).
