Monaural Amplifiers

Models: Full Power Balanced 650M | 350M | 250M

Academy Advancing High Performance Audio & Video Solid State Electronic Design KrellŪ Full Power Balanced 650M 650 Watt Monaural Amplifier KrellŪ Industries, Inc. Dan D’Agostino

Full Power Balanced
650M Monaural Power Amplifier

The Full Power Balanced 650M Power Amplifier is the most powerful amplifier in the KrellŪ Full Power Balanced Series. It provides the monumental power output of 650 Watts into 8 Ohm, 1300 Watts into 4 Ohm, and 2600 Watts into 2 Ohm loudspeaker loads. It is built in limited quantities and by special order. The model for this power house came from a custom amplifier that Dan D’Agostino, KrellŪ Co-founder and C.E.O., designed specifically to power large speakers like the Wilson Audio Grand Slam and the Martin Logan Statement as the front main speakers in his personal home theater system. Mr. D’Agostino was developing the KrellŪ Audio + Video Standard Preamp/Processor at the time and needed an amplifier of unlimited power to get maximum output from his system.

Highlights

	Current Mode GainTM circuitry provides a seamless gain stage transition, wide bandwidth and a heightened level of sonic detail and transparency, with all the smoothness of natural music.
	KrellŪ Class A, direct coupled, balanced circuitry provides outstanding musical reproduction.
	Dual toroidal power transformers give maximum power to the regulated supplies for unrivaled instantaneous power delivery.
	Available individually, in symmetrical pairs, and in three-piece and five-piece like groupings to best address application needs.
	Seven-stage Sustained Plateau BiasTM delivers precise Class A power into any impedance at any level to optimize every speaker’s performance.
	Proprietary KrellŪ output and driver transistors assure substantial output current capability.

Full Power Balanced
350M Monaural Power Amplifier

The Full Power Balanced 350M Monaural Power Amplifier delivers Class A power: 350 Watts into 8 Ohm, 700 Watts into 4 Ohm, and 1,400 Watts into 2 Ohm loudspeaker loads. It offers high power and KrellŪ Full Power Balanced sound quality for high-end two channel as well as high-end multi-channel sound system applications. The substantial current capability of the Full Power Balanced 350M provides significant headroom for large loudspeakers, subwoofers, and systems with low sensitivity.

Highlights

	KrellŪ Class A, direct coupled, balanced circuitry provides outstanding musical reproduction.
	Dual gold plated output terminals facilitate bi-wire connections security and ease.
	Computer regulated power supply provides consistent sound quality at wide dynamic range regardless of fluctuating line voltages.
	Remote power turn on/off capability means convenient system operation.
	KrellŪ output and driver transistors assure substantial output current capability and audiophile grade sound quality.
	Available individually, in symmetrical pairs, and in three-piece and five-piece groupings to best address application needs.

Full Power Balanced
250M Monaural Power Amplifier

The Full Power Balanced 250M Power Amplifier is designed for the demanding audiophile who prefers monaural operation and the home theater enthusiast who wants superior sound and system flexibility. It is an ideal amplifier for those who appreciate the special appeal of monaural power amplification and want the sonic advantages that KrellŪ Full Power Balanced technology provides.

Highlights

	Substantial Class A power output of 250 Watts into 8 Ohms, 500 Watts into 4 Ohms, and 1000 Watts into 2 Ohms assures tremendous reserves of dynamic headroom for the reproduction of any source material.
	Available individually, in symmetrical pairs, and in three-piece and five-piece groupings to best address application needs.
	Fully active regulation via microprocessor based regulators for precise control of bias circuits during fluctuating voltage conditions produce consistent sound regardless of power conditions.
	Balanced and single-ended operation allows maximum flexibility for hook-ups with other equipment.
	Proprietary KrellŪ output and driver transistors assure substantial output current capability.