Modwright KWA 100 Amplifier

Like its bigger brother, the KWA 150, the KWA 100 possesses the 3-D soundstage, warmth and liquidity of tubes with the punch and bass control of solid state.

At the heart of the design is a single voltage gain stage Modwright calls the "Solid State Music Stage". The circuit was designed by Alan Kimmel who designed the now legendary vacuum tube "Mu" stage.

KWA 100 Features

• High / Low bias switch
• True balanced floating inputs,
• XLR and RCA Inputs
• Regulated power supply for the input stage
• Oversized heat sinks
• No global feedback
• Direct coupled
• Fully differential
• Designed and hand crafted in the USA

Design Specifications of the KWA 100:

• Fully discrete 'Solid State Music Stage' design by Alan Kimmel, offering midrange of tubes as well as muscle and speed of solid state design.
• Zero global Negative feedback.
• High Current MOSFET output stage for extreme linearity and speed.
• Over 90,000uf total power supply capacitance reserves for deep and tuneful bass.
• Lundahl Input Transformer coupled floating ground design, preventing ground loops and isolation from ground mains, for exceptionally low noise floor.
• RCA and XLR inputs transformer coupled to fully balanced circuitry.
• Proprietary protection circuitry operating completely outside of signal path, protecting both amplifier and associated system components with ZERO impact on sonics.
• DC input and output protection
• Over-current protection.
• Output short-circuit protection.
• Thermal overload protection.
• Proprietary 'RFB' circuit to protect amp in case of single rail fuse failure
• Class AB operation.
• Bias optimized for low distortion, heat and sonics, allowing for lower operating temperatures, and ideal sonic presentation.
• Pure copper pcb traces, offering the lowest possible impedance.
• Extremely short signal paths and highest quality MWI capacitors and audio grade signal path components for sonic purity.