I25 – modular integrated amplifier

•⁠  ⁠Overview – The Edge G3 Integrated Amplifier, released in the early 2000s, is a solid state Class AB integrated amplifier featuring high-current output stages and refined preamplification for authoritative, full-range loudspeaker control.

•⁠  ⁠Power & Drive – Delivering substantial current capability, Edge G3 Integrated Amplifier provides confident bass authority and stable performance into demanding loads, maintaining composure and dynamic headroom during complex musical passages.

•⁠  ⁠Build & Circuitry – Built with robust chassis construction and dual-mono inspired layout, the design emphasizes short signal paths and substantial power supply reserves to preserve transparency and channel separation.

•⁠  ⁠Specifications – Solid state Class AB topology, approximately 100–150 watts per channel into 8 ohms, high-current output stage, multiple line-level inputs, frequency response extending beyond 20 Hz–20 kHz with low distortion.

•⁠  ⁠Dimensions – Approximate dimensions are 430 mm wide × 150 mm high × 400 mm deep, providing substantial internal transformer space while fitting standard hi-fi racks.

•⁠  ⁠Weight – Weighing approximately 18–22 kg, the amplifier’s mass reflects its large power transformer and heat-sinking required for sustained high-current operation.

Soulnote A-2 v2

Soulnote A-2 v2 is a fully balanced, non NFB integrated amplifier designed to preserve timing, texture, and dynamic swing while offering flexible operating modes for real systems.

Design and engineering

The A-2 v2 carries Soulnote’s discrete, wide bandwidth gain architecture with a short signal path and mechanical tuning derived from the Series 3 program. Revisions to device selection, biasing, and grounding reduce stored energy and lower audible residue, yielding cleaner transients and a more stable image.

What changed from A-2 (previous version)

The v2 platform strengthens current delivery and simplifies the voltage gain loop for higher purity. The driver stage also uses the same TO3P transistor as the output stage. By passing a large current through the driver, it instantly compensates for HFE fluctuations caused by current changes in the output stage. This is the biggest difference and breakthrough from the prior version. The power amp mode now hard bypasses selector and volume control for those who prefer a separate preamp. Chassis and top cover treatment improve resonance control compared to the earlier A-2.

Connectivity and control

Balanced and single ended inputs are relay switched, with a balanced attenuator for consistent channel tracking. Four modes cover integrated stereo, bi amp mono, power amp stereo, and power amp bi amp. Control logic is isolated so audio circuits remain quiet during operation.

What distinguishes it

Fast, high current drive with a lively, uncompressed presentation and the flexibility to act as a true power amp when required.

Who it is for

Listeners who value natural timing, wide bandwidth clarity, and the option to reconfigure the amplifier as their system evolves.

In the box

Main unit, metal remote control, AC power cable, spike feet, documentation.

•⁠  ⁠Overview – Aavik I-880 Integrated Amplifier, released in 2021, is a high-power solid-state Class D integrated amplifier featuring advanced DAC and phono capabilities, engineered for extreme resolution and low-noise performance.

•⁠  ⁠Sound Performance – Designed for absolute transparency, the amplifier delivers explosive dynamics, ultra-low noise floor, and exceptional control, presenting music with speed, scale, and natural tonal balance across complex passages.

•⁠  ⁠Design Philosophy – Built using Aavik’s resonance-control technologies and minimalist signal paths, the Aavik I-880 Integrated Amplifier emphasizes mechanical grounding and vibration reduction to preserve microdetail and spatial accuracy.

•⁠  ⁠Specifications – Rated at approximately 300 watts per channel into 8 ohms and 600 watts into 4 ohms, offering extremely high damping factor, wide bandwidth, and stable operation with demanding loudspeaker loads.

•⁠  ⁠Dimensions – Chassis measures approximately 442 mm (W) × 147 mm (H) × 460 mm (D), providing a substantial yet refined footprint suitable for high-end audio racks.

•⁠  ⁠Weight – The amplifier weighs approximately 42 kg, reflecting its massive power supply, resonance-controlled enclosure, and premium internal construction for thermal stability and sonic consistency.

• Ayre Acoustics AX-7e Overview – The Ayre Acoustics AX-7e, a solid-state Class A/B integrated amplifier released in 2006, delivers Ayre’s fully balanced, zero-feedback design with an internal preamplifier stage for exceptionally clean and natural sound.

• Zero-Feedback Transparency – Leveraging Ayre’s signature zero-feedback topology, the AX-7e provides outstanding clarity, low distortion, and realistic harmonic structure, ensuring music flows with openness and natural tonal accuracy.

• Fully Balanced Architecture – Its symmetrical circuit design greatly reduces noise and interference, enhancing dynamic range and bringing out subtle musical details with stable imaging and superior channel separation.

• Refined Musical Drive – With authoritative control and a smooth, grain-free character, the Ayre Acoustics AX-7e pairs effectively with a wide range of speakers, offering engaging dynamics and fatigue-free long-term listening.

• Dimensions – Approx. 440 mm (W) × 120 mm (H) × 345 mm (D), sized for standard hi-fi racks and easily integrated into modern or minimalist audio systems.

• Weight – Roughly 10.5 kg, featuring a rigid chassis and robust linear power supply that enhance mechanical stability and sonic performance.