LiquidSonics Seventh Heaven

LiquidSonics Seventh Heaven is a convolution reverb plugin built around painstaking captures of the Bricasti M7, widely regarded as the finest hardware reverb unit ever made. Using LiquidSonics' proprietary Fusion-IR technology — a modulated convolution system that adds the movement and life of algorithmic reverbs to convolution accuracy — Seventh Heaven delivers the M7's lush, dimensional sound without the $3,000+ price tag of the hardware. Available in standard and Professional editions, it has become one of the most respected reverb plugins in professional mixing.

Fusion-IR Technology

Traditional convolution reverbs capture a static impulse response, producing accurate but lifeless results. Seventh Heaven's Fusion-IR engine solves this by capturing multiple states of the M7's reverb algorithms and blending them dynamically, preserving the modulation, density variations, and three-dimensional character that make the hardware special. The M7 contains three individual reverb components — early reflections, late reverb, and a dedicated low-frequency engine — and Seventh Heaven faithfully reproduces all three with independent level controls.

Controls and Workflow

The standard edition includes 30 presets spanning the M7's most popular algorithms, with decay times from 200ms to 30 seconds. You get controls for low, early, and late reverb levels, a 2-band EQ (low-pass and high-pass), pre-delay with tempo sync, and a simple delay. The Professional edition expands significantly with 218 presets covering both M7 v1 and v2 firmware, a 5-band EQ with shelf and bell curves, advanced early and late roll-off filtering, and nearly 10 GB of Fusion IRs for deep sound shaping.

Mix Integration

Where Seventh Heaven excels is how naturally the reverb sits in a mix. The low-frequency reverb engine adds presence and weight to drums and percussion without muddiness, while the high-frequency roll-off curves let you push the reverb back in the mix precisely. The pre-delay and tempo sync options make it easy to time the reverb to your track, and the overall character is smooth, dense, and never harsh — exactly what you would expect from an M7.

Who Is This For?

• Mixing engineers who want M7-quality reverb without the hardware cost
• Vocal producers seeking lush, transparent reverb that enhances without masking
• Film and TV composers who need convincing, high-quality spaces for orchestral and ambient work
• Anyone upgrading from stock DAW reverbs who wants a significant step up in quality

Seventh Heaven is one of the safest reverb purchases you can make. The standard edition at $69 is a remarkable value for M7-quality reverb, while the Professional edition at $299 gives you deep control rivalling the hardware. If you mix vocals, drums, or any acoustic source and want reverb that just works beautifully, Seventh Heaven should be at the top of your list.