Jeff Rowland

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  1. Jeff Rowland 125 Amp

    Jeff Rowland Model 125 Stereo Amplifier

    Jeff Rowland 125 Stereo Power Amplifier

    The Model 125 stereo bridgeable power amplifier delivers dynamic realism and refinement from its solid aircraft-grade aluminum chassis, a perfect match for the sleek profile of its companion Capri S2 preamplifier.

    From a single M125 in stereo mode powering an intimate analog system, up to several bridged units driving a multi-speaker setup, down to a bridged pair controlling demanding 4-Ohm monitors, the energy-efficient Model 125 power amplifier delivers consistent resolution and authority with Rowland finesse.

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  • Jeff Rowland 525 Amp

    Jeff Rowland Model 525 Stereo Amplifier

    Jeff Rowland 525 Power Amplifier 

    A bridgeable power amplifier that delivers stunning dynamic realism and expressive refinement. Housed in a chassis milled from a solid block of aircraft-grade aluminum, the Model 525 features an innovative topology that epitomizes power and efficiency.

    From a single Model 525 in stereo mode at the core of an intimate audio system, up to multiple bridged units powering a complex home theater setup, down to a bridged pair driving a sophisticated two-channel environment, the Model 525 delivers exquisite resolution, authority, and control to speakers of almost any size and any load.

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  • Jeff Rowland 925 Amplifier

    Jeff Rowland Model 925 Mono Amplifier

    Jeff Rowland 925 Four Chassis Monoblock Amplifier

    Experience the effortless magic of absolute authority. Vocalists and instruments materialize within an astonishingly concrete sound stage. From the most delicate solos to thundering orchestrals, emotion and music dance throughout a seemingly infinite frequency spectrum.

    The Model 925 represents the ultimate benchmark of dynamic realism and expressive refinement. A quarter century of engineering passion expressed in the synergy of advanced technologies and timeless design. A stunning achievement inspired by the musicality of an enduring classic: the Rowland Model 9.

    Manufacturer's Website Jeff Rowland

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  • Jeff Rowland Model 725 Mono Amplifier

    Jeff Rowland Model 725 Mono Amplifier

    Jeff Rowland 725 Monoblock Amplifier

    Precision machined from two single blocks of non-resonant aircraft aluminum, the Model 725 features a unique composite circuit architecture incorporating separate Class AB voltage and current gain blocks with no overall negative feedback. The Model 725 features mil-spec ceramic circuit boards, high current copper bus bars, a power supply incorporating 4-pole capacitors and power factor correction, combined to deliver a life-like grain-free musicality of breathtaking transparency.

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  • Jeff Rowland Model 825 Stereo Amplifier

    Jeff Rowland Model 825 Stereo Amplifier

    Jeff Rowland 825 Dual Chassis Stereo Power Amplifier

    Experience the effortless magic of absolute authority. Vocalists and instruments materialize within an astonishingly concrete sound stage. From the most delicate solos to thundering orchestrals, emotion and music dance throughout a seemingly infinite frequency spectrum.

    The Model 825 represents the ultimate benchmark of dynamic realism and expressive refinement. A quarter century of engineering passion expressed in the synergy of advanced technologies and timeless design. A stunning achievement inspired by the musicality of an enduring classic: the Rowland Model 8.

    Manufacturer's Website Jeff Rowland

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  • Jeff Rowland 625 S2 Amp

    Jeff Rowland Model 625 S2 Stereo Amplifier

    Jeff Rowland 625 S2 Stereo Power Amplifier

    The 625 Series 2 incorporates many of the same technical features of the 725 amplifiers. Similar to the 725, the 625 S2 signal circuitry is built upon a Rogers ceramic circuit board laminate material for lower dielectric absorption and energy storage. The 4-Pole filter capacitors used in the 725 power supply have also been included in the S2, significantly reducing power supply output noise. The maximum output power has been increased from 300 to 325 watts per channel at 8 ohms.

    Precision LED based current sources have been implemented throughout the amplifier circuitry, along with 0.1% thin film SMD resistors for more stable operating points and lower noise. Custom designed Lundahl input transformers are implemented with a higher turns ratio and wound with Cardas high purity copper wire.

    Input circuitry includes an additional linear phase 2 pole filter to effectively attenuate all out-of-band signals from any source, including DSD spurious noise.Cardas gold/teflon/rhodium XLR input connectors are carried over from the 725. Newly developed error-correction circuitry has been incorporated around the entire amplifier, making a total of three independent error-correction techniques used to decrease all forms of distortion throughout the entire audio bandwidth.

    The Model 625 S2 delivers a sensuous grain-free musicality of unparalleled transparency and low level resolution that blossoms from a rich velvety silence and blossoms into the pure enjoyment of your listening experience.

    Manufacturer's Website Jeff Rowland


     
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