Limiter Compressor Module 2254

Neve 2254 (Original, 1969)

Designed by Rupert Neve and David Rees, the 2254 made its debut as a mono limiter/compressor module. It quickly gained a reputation as a studio staple due to its distinctive, warm tone and robust Class A circuit design.

Key Technical Details:

• Discrete, all-transistor Class A circuit throughout.
• Transformer coupling on input, bridge-driver, sidechain, and output.
• Diode bridge gain control provided the classic “musical” compression with slight harmonic coloration.
• Attack time fixed at 5ms—this contributed to its signature “creamy” and thick sound.
• Compressor ratios: 1.5:1, 2:1, 3:1, 4:1, 6:1. Threshold: -20dBu to +10dBu.
• Limiter ratio: >100:1. Threshold: +4dBu to +20dBu.
• Recovery (release): 400ms, 800ms, 1500ms, Auto (program-dependent).
• Typical noise floor: -73dBm (20Hz–20kHz), typical for diode-bridge compressors.

Notable Use:
Found in Neve 80 Series consoles, prized for “glue” on drum buses, vocals, guitars, and groups. Renowned for imparting warmth, roundness, and character to recordings.

Major Revisions

• 2254 (Original): Introduced in 1969.
• 2254/A: Fixed slow attack, minor updates.
• 2254/E: Allowed for faster attack choices.
• 2254/R: Modern reissue; sweepable attack control, USB recall, rack format

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Tous les appareils de Neve Electronic Laboratories Ltd.; Hertfordshire