
The VOX™ AC30 is one of the foundational British guitar amplifiers — first produced in 1959, the platform behind the chiming clean and edge-of-breakup tones of the British Invasion. The "6TB-X" designation is the "Top Boost" extended variant, the most-recorded AC30 specification.
The AC30 runs a Class-A output stage with EL84 power tubes — a circuit topology that produces a softer, more sweetly compressed overdrive than the Class-AB designs typical of American amps. This is the source of the AC30's signature top-end "chime" and natural musical compression.
The IR is taken from the combo's native 2×12 cabinet with VOX™ Vintage Greenback 12-inch speakers — the British driver class historically associated with the AC30's harmonic richness and balanced upper-midrange presence. Where the Alnico Blue compresses and sings, the Greenback holds the line: a tighter, more focused upper-mid push that keeps the AC30's chime articulate even as the amp moves into breakup.
A reference capture for the more focused end of the AC30 lineage. The Alnico Blue capture sits alongside this one as the warmer, sustaining alternative. The Greenback version reads with definition. The open-back stays open, the Greenback's mids stay forward, and a clean rhythm chord rings clear out into the room.
- ModelVOX 12" Vintage Greenback
- OriginVOX-branded (Celestion-made)
- Size12"
- Quantity×2
— Available in 96kHz / 48kHz / 44.1kHz
Microphones Used









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