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Novason CL-1B

Novason CL-1B

Vintage soul · Modern precision

Tube‑sweetened dynamics that sit every track in the pocket—instantly.

Novason CL‑1B is a dual‑mono optical compressor/limiter inspired by the classic Danish work‑horse of the '90s, refined in Gothenburg for the 2020‑talets hybridstudio. A musically voiced tube front‑end, transformer‑balanced I/O and recall‑friendly detented pots make it the perfect vocal, bass and mix‑bus finisher.

Key Features

  • Hand‑matchade 12AX7 / 12AU7‑rör
  • Class‑A nickel‑kärnat signalflöde (< 0,02 % THD vid +20 dBu)
  • Kontinuerlig Ratio 1.5 : 1 → 10 : 1 + hård Limit‑läge
  • Steglös Attack 0,1–30 ms & Release 0,05–9 s
  • Carnhill‑trafobalanserade in/ut med +28 dBu headroom
  • 2 U rackchassi i safirblå anodiserad aluminium med svarvade mässingsdetaljer
"Switch it on and your faders just click—like you already balanced the mix."
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Technical Specifications

Parameter Value
Kretstopologi Class‑A rör + optisk cell
Rörbestyckning 1× 12AX7, 1× 12AU7
Frekvens­gång 20 Hz – 20 kHz ±0,5 dB
THD+N < 0,02 % @ +4 dBu
Brusgolv < −85 dBu ovägt
Max in/ut +28 dBu
Impedans in/ut 20 kΩ / 600 Ω balanserat
Nätspänning 100–240 VAC · 25 W
Mått 2 U (88 mm) × 19″ × 270 mm djup
Vikt 5,2 kg

Frontpanel – kontroller

Kontroll Omfång Detalj
Threshold −40 → +20 dB 21‑stegs avklickad pot
Ratio 1.5 : 1 → 10 : 1 (∞ i Limit) Mjuk optisk knä
Attack 0,1 → 30 ms Ger både transient­skydd & glue
Release 0,05 → 9 s Log‑taper för musikalisk svans
Gain 0 → +30 dB Rördrivet make‑up‑steg
Bypass Relä‑hård Fail‑safe vid strömavbrott

Historien bakom CL‑1B

När den ursprungliga danska optokompressorn slog igenom på 1990‑talet blev den snabbt hemliga vapnet på allt från popvokal till hiphop‑bas. Novason—ett familjeägt företag i Uppsala—tog kärnreceptet men uppdaterade allt som behövde bli tystare, starkare och mer servicevänligt:

  1. Rörselektions­rigg i labbet som para ihop 12AX7‑ och 12AU7‑trioder på under 1 % emmisions‑match.
  2. Optoklossar limmade för hand och åldras 72 h för stabiliserad cellrespons.
  3. 90 V interna linan ger 28 dBu headroom med lägre brus än originalet.
  4. Varje exemplar bränns in i 48 h, kalibreras och levereras med utskriven mätrapport.
"Vi bygger hellre hundra perfekta än tusen halvbra."
— Saga Norén, teknisk chef

Recommended Applications

Vocals

The CL-1B excels at vocal processing with its smooth compression characteristics that maintain clarity while providing consistent levels. Perfect for both lead and background vocals.

Recommended settings: Threshold: -15 to -25 dB, Ratio: 3:1 to 5:1, Attack: 5-10ms, Release: 0.3-0.5s

Bass

Thanks to its tube warmth and precise attack/release controls, the CL-1B adds both punch and consistency to bass guitar and synth bass tracks.

Recommended settings: Threshold: -20 dB, Ratio: 4:1, Attack: 15-20ms, Release: 0.2-0.3s

Mix Bus

The optical compression circuit provides a natural "glue" effect for mix bus processing, binding all elements together without sacrificing dynamics.

Recommended settings: Threshold: -10 to -5 dB, Ratio: 1.5:1 to 2:1, Attack: 30ms, Release: 0.3s

Drum Overheads

Handles transients beautifully while adding harmonic richness to cymbals and overall drum sound.

Recommended settings: Threshold: -15 dB, Ratio: 3:1, Attack: 7-10ms, Release: 0.2s

Downloads & Resources

User Manual (PDF) Front View (High-Res) Rear View (High-Res) 3D Model (STEP) CE Certificate RoHS Certificate