Acoustic Invader Fulcrum Preamplifier: The Heart of Your Reference Audio System
Pure Class-A Engineering with Discrete Signal Paths
The Acoustic Invader Fulcrum Preamplifier is an ultra-high-end control center designed to act as the perfect bridge between your source components and power amplifiers. Operating in pure Class-A mode, it handles delicate audio signals without a trace of switching distortion. Rather than relying on integrated circuits, the Fulcrum utilizes premium discrete technology throughout its signal path, maintaining the absolute purity, organic texture, and natural dynamics of your music.
Uncompromising Dual-Mono Isolation
To deliver breathtaking stereo imaging, the Fulcrum is built around a true dual-mono internal architecture. By completely isolating the left and right channels, it effectively eliminates crosstalk and optimizes signal independence. This sophisticated layout works alongside robust J-FET voltage stabilization in the power supply to isolate sensitive audio stages from grid noise. The result is an incredibly ink-black background with a class-leading signal-to-noise ratio of 115dB.
Holographic Soundstage and Refined Gain Control
With an ultra-low total harmonic distortion of just 0.003%, the Fulcrum reveals micro-details and acoustic venue spaces that often remain hidden. It offers a precise 12dB gain structure that effortlessly drives any power amplifier while retaining exceptional headroom and authority. Its signature sound is defined by fluid continuity, deep bass control, and an expansive, three-dimensional soundstage that places every instrument with pin-point accuracy.
Versatile Connectivity and Industrial Masterpiece
Housed in a massive, resonance-damped 16kg chassis crafted from thick, premium milled brushed aluminum, the Fulcrum shields its internal electronics from external vibrations and electromagnetic interference. It offers an expansive array of connectivity, featuring 5 x RCA and 3 x balanced XLR inputs, alongside flexible output options including RCA, balanced XLR, and a dedicated Tape Out. Complete with a high-quality remote control, this preamplifier serves as the commanding centerpiece for reference-tier systems.
Price: 6350€ excl VAT
Specifications
Technical Specifications
| Feature |
Specification |
| Product Name |
Acoustic Invader Fulcrum Preamplifier |
| Circuit Topology |
Pure Class-A, Fully Balanced, True Dual-Mono |
| Amplification Stage |
Fully Discrete J-FET Stabilization |
| Frequency Range |
20Hz – 20kHz (± 0.1dB) |
| Harmonic Distortion (THD) |
0.003% |
| Signal to Noise Ratio |
115dB |
| Output Level |
0dB (0.775V) |
| Gain |
12dB |
| Analog Inputs |
5 x RCA, 3 x XLR (Balanced) |
| Analog Outputs |
1 x RCA, 1 x XLR (Balanced) + Tape Out |
| Remote Control |
Yes |
| Dimensions (W x H x D) |
435mm x 130mm x 450mm |
| Mass |
16 kg |
| Power Consumption |
110W |
| Color Options |
Black or Silver |
Review
Expert Review: iiWi Reviews The Acoustic Invader Fulcrum achieved an exceptional total score of 9.4/10 from the renowned hifi publication iiWi Reviews. The reviewer highly praised the preamplifier for its incredibly rich tone timbre, holographic soundstage, and ultra-premium component selection.
Detailed Review Scores:
- Sound: 10 / 10
- Build: 10 / 10
- Compatibility: 10 / 10
- Features: 9 / 10
- Value: 8 / 10
Pros:
- Very rich tone timbre
- Huge soundstage
- Premium build and parts
Cons:
See the full review here!
