Thermionic Culture The Phoenix SB
Standard-production stereo valve compressor
Compressor / LimiterPrice not published
Specifications
- Type
- Compressor / Limiter
- Description
- Standard-production stereo valve compressor
- Topology
- all-valve/tube, Class-A
- Signal path
- Analog
- Channels
- 2
- Channel format
- stereo with link switch
- Form factor
- 19-inch rack
- Powered
- yes (mains powered)
- Frequency response
- <1dB variation, 12Hz–56kHz
- Impedance (Ω)
- Input 15kΩ / Output 600Ω
- Country of manufacture
- United Kingdom
Details
Controls: Continuously variable Attack, Release, Threshold; Stereo Link; Side Chain (bass) filters (150Hz/300Hz); Standby switch; Bypass per channel; front-panel meter-zero trims
I/O: Balanced ins/outs via custom Sowter transformers
Notes: 'Now the standard production version of the Phoenix compressor.' MOL +19dB into 600Ω / +24dB into 10kΩ; Max gain 36dB; THD (no compression) better than 0.06%; Attack 0.004s–0.12s, Release 0.04s–2.4s. Valve complement identical to Mastering Plus: 2x PCC85, 2x ECC81, 2x EB91. Country confirmed via feature text 'point to point hand wired in England.' 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.