• Jeff Rowland 112 Power Amplifier

    •⁠  Overview – The Jeff Rowland 112 Power Amplifier, released in 2004, is a solid state Class AB stereo power amplifier delivering refined power, exceptional control, and the brand’s signature ultra-low noise performance.

    •⁠  Balanced Circuit Design – Featuring fully balanced circuitry and precision-matched components, the Jeff Rowland 112 Power Amplifier delivers remarkable transparency, expansive soundstaging, and effortless dynamic scaling across demanding loudspeaker loads.

    •⁠  Precision Power Delivery – With a high-current output stage and robust linear power supply, this amplifier produces authoritative bass control, smooth midrange texture, and refined high-frequency extension without harshness or strain.

    •⁠  Specifications – Rated at 150 watts per channel into 8 ohms and 300 watts into 4 ohms, balanced XLR and RCA inputs, high-current output stage, frequency response 10Hz–40kHz, signal-to-noise ratio exceeding 90dB.

    •⁠  Dimensions – Approximately 432 mm wide × 95 mm high × 356 mm deep, housed in a precision-machined aluminum chassis designed for thermal stability and mechanical resonance control.

    •⁠  Weight – Weighs approximately 15 kg, reflecting its substantial power supply, heavy-duty transformer, and solid billet aluminum construction typical of Jeff Rowland designs.

  • AudioSpace AS-9 MK3

    AudioSpace AS-9 MK3 Overview – The AudioSpace AS-9 MK3, a Class A tube integrated amplifier released in the mid-2010s, features EL34 output tubes and a built-in phono stage, delivering warm, detailed, and harmonically rich musical reproduction.

    Refined Tube Architecture – Using high-grade EL34 power tubes and 12AX7/12AU7 driver stages, the AS-9 MK3 achieves excellent linearity, wide soundstage depth, and smooth treble energy suited for acoustic and vocal listening.

    Exceptional Musical Coherence – The AudioSpace AS-9 MK3 enhances midrange presence and low-level detail, producing a natural tonal balance with impressive microdynamics, making it ideal for pairing with sensitive or high-efficiency loudspeakers.

    Premium Build and Craftsmanship – Featuring point-to-point wiring, robust transformers, and a resonance-controlled chassis, the amplifier ensures long-term reliability, low noise, and stable tube operation under demanding listening conditions.

    Dimensions – Approx. 380 mm (W) × 295 mm (D) × 220 mm (H), offering a compact yet substantial footprint that accommodates the transformer layout and internal tube architecture effectively.

    Weight – Around 23–25 kg due to its heavy-duty power supply and output transformers, contributing to improved current delivery and mechanical stability during playback.

  • Jeff Rowland Consonance Preamplifier

    Preamplifier Overview – The Jeff Rowland Consonance Preamplifier, introduced in the mid-1990s, is a reference solid-state line stage known for its ultra-low noise floor, holographic imaging, and refined tonal balance characteristic of Rowland’s early masterpieces.

    High-Resolution Line Stage – The Consonance employs fully balanced circuitry, premium discrete components, and short signal paths, ensuring exceptional transparency, natural harmonic structure, and impressive dynamic contrast with both solid-state and tube power amplifiers.

    Silent Power Architecture – Featuring Rowland’s renowned attention to power-supply regulation and isolation, the Jeff Rowland Consonance Preamplifier delivers extremely low distortion and stable channel performance, enhancing microdetail retrieval and spatial coherence.

    Precision Build Quality – Machined aluminum chassis, high-grade connectors, and vibration-resistant internal layout reinforce long-term stability, while providing the polished aesthetic and engineering elegance expected from Jeff Rowland designs.

    Dimensions – Approx. 430 mm (W) × 90 mm (H) × 300 mm (D). Designed for compatibility with standard rack systems while maintaining optimal internal airflow and cable management.

    Weight – Approx. 8–10 kg, depending on production revision, offering solid mechanical grounding that minimizes vibration and preserves low-noise signal integrity.

  • Jeff Rowland Concentra Integrated Amplifier

    • Jeff Rowland Concentra Integrated Amplifier – A masterpiece of Class AB amplification, combining preamplifier finesse and power amplifier control in one chassis for pure, transparent, and emotionally engaging sound reproduction.

    • Refined Class AB Topology – Delivers 100W per channel into 8Ω (170W into 4Ω), offering effortless dynamics, exceptional headroom, and authoritative grip across complex musical passages.

    • Precision Analog Engineering – Features fully balanced circuitry, ultra-low-noise design, and gold-plated connectors, ensuring perfect signal integrity and channel separation for uncompromised performance.

    • Timeless Design and Build – Machined from solid aircraft-grade aluminum, the Jeff Rowland Concentra Integrated Amplifier combines elegance, reliability, and the hallmark sonic purity of Rowland engineering.

    • Product Dimensions – 430 mm (W) × 100 mm (H) × 400 mm (D); compact yet substantial for a high-current integrated amplifier.

    • Weight – Approximately 22 kg; heavy-duty chassis ensures exceptional stability, heat dissipation, and resonance control.

     

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