The Krell KSL is a one-box line controller/ preamplifier with high-bias Class-A design with balanced and single-ended inputs/outputs, and strong dynamic performance.
It also offers clean, controlled bass, clear midrange, and a wide-open soundstage with excellent transparency and stereo focus. Its design features a main chassis of steel, the top cover is of aluminum-alloy. Related to the power-amplifier circuitry, the KSL's line amplifiers are also all-discrete, using cascode pairs of differential FET and bipolar stages. Top-quality components are used throughout.
Built to Krell’s high standards, it’s a reliable vintage piece that pairs well with quality power amplifiers and elevates analog or digital sources.
Specifications
Type: Solid-state, line-level preamplifier (high-level)
Gain: 10 dB
Frequency Response: 0.5 Hz – 550 kHz
Signal-to-Noise Ratio: 95 dB (A-weighted)
Input Impedance: ~48.5 kΩ
Output Impendance: ~11 kΩ
Maximum Output Voltage: ~9.5 V RMS (28 V p-p)
Dimensions: 18″ W × 2.25″ H × 13.75″ D