Thermionic Culture The Kite

Controls: HPF (20/40Hz, 12dB/oct), Bass Boost & Bass Cut (2 frequencies each, combinable for mid-cut), Top Shelf (2 frequencies), Air (valve-only high-top boost), Attitude (2nd-harmonic add), Output Trim (incl. -6dB switches), Bypass

I/O: XLR connectors; semi-floating inputs, unbalanced outputs (transformer-balanced version available to order)

Notes: IMPORTANT CORRECTION: Thermionic Culture has publicly stated they do not make 500-series modules because '500 series power supply voltage rails just aren't big enough for our valve demands' (non-starter). The Kite is a full 19-inch rack stereo EQ, NOT a 500-series module — the research brief's characterization of 'The Kite (500-series EQ)' is incorrect and is flagged here. MOL @1% distortion +25dBu; Distortion ≤0.015% @Attitude1 (+4dBu); Noise <-80dBu; official spec PDF (Sept 2018) is explicitly marked 'Provisional.' Country of manufacture not stated on this specific page — left blank though other Harlow-made siblings (Swift, Snow Petrel) are explicitly UK-made. Official site thermionicculture.com is currently unreachable/broken (root returns an empty Apache directory listing, product URLs 404) as of research date 2026-07-19; all data below sourced from Wayback Machine snapshot dated 2025-05-16 (and linked official spec-sheet PDFs) of the live Joomla/VirtueMart catalog, cross-checked against the current Independent Audio (US distributor) product listing, which also shows no USD pricing.