For Sale: Krell KST-100
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KRELL KRC PREAMP also for sale
General Information:
Over the course of its 10 year history, the KRELL name has become synonymous with audio products of uncompromising quality. The KST-100 Stereo Amplifier possesses a combination of classic KRELL attributes and new concepts that have evolved in recent years.
A new concept being incorporated in home audio equipment is balanced operation. Balanced systems have long been standard in professional applications. KRELL believes the sonic advantages are substantial and has included balanced circuitry in all products. Soundstage and dynamic presentation are dramatic and vivid, and overall noise is reduced. The KST-100 will accept both balanced and single-ended inputs.
The KST-100 is built to provide consistent performance for a lifetime. Superior build quality is a KRELL trademark. This is evident in the fit and finish of the external chassis, military-grade electronic components and proprietary structural parts. Internal construction is efficient and elegant. Virtually all hand wiring has been eliminated, resulting in a surprising improvement in sonic clarity. All gain and power supply stages operate in complete harmony with one another to insure uniform operation under the most diverse conditions.
The KST-100 is a Class A/B amplifier rated at 100 watts per channel into 8 ohms. Class A circuitry yields superior sonic quality because the active components operate in their most linear and predictable regions. The KST-100 input stages are full Class A. The output stages operate in Class A until approximately half power is reached, then gradually slide toward Class B operation. This allows the KST-100 to deliver ultimate sound quality at most listening levels while retaining tremendous reserve power for sharp attacks and transients.
The 100watt/8 ohm rating of the KST-100 is very conservative. Like all KRELL amplifiers, the KST-100 will drive extremely low impedance loads: it will deliver 800 watts continuously into 1 ohm!
All circuitry is direct-coupled from input to output, which is unique in the industry. There are no capacitors in the signal path to degrade the audio signal.
Rear panel connections provide for either a balanced input via an XLR connector or a single-ended input via an RCA connector. There are 2 sets of 5-way binding posts per channel to allow easy bi-wiring.
Additional value is gained from the KST-100's ability to be reprogrammed for mono operation by the owner. With the change of an existing amplifier to mono and the purchase of a second, dual-mono operation can be achieved without the inevitable loss from trading or selling used gear.
[From the KRELL KST-100 Owner's Manual]