Krell Industries KSA-200S, KSA-300S, KSA-100S manual Amplifier Operation, PAGE12

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OPERATION

AMPLIFIER OPERATION

Understanding the 'operation of the amplifier is very easy. Equally important is an understanding of the care that should be exercised when operating the

system as a whole, in relation to the enormous power output of the KSA. Simple mistakes, such as switching between active sources without muting

the preamplifier output, or bumping/miscuing a cartridge, can generate large transients at low frequencies. With this type of transient the KSAcan

generate enough power to damage most loudspeakers. All switching of

sources should be done with the preamplifier level either muted or fully

attenuated. Inputs to the amplifier should not be changed while the amplifier is on.

NOTE: Care must be taken

when setting

high

playback levels.

 

Because

of

their tremendous

reserve

of clean

power,

KRELLamplifiers

safely

drive

speakers

to

higher

sound

pressure

levels

 

than

other

amplifiers.

This

also

means driving

the

speakers

to their

limit.

 

Always turn

the level

down at

the

first sign

of

distortion.

 

 

 

 

 

 

 

 

 

 

Whenturning the system off, turn the volume on the preamplifier all the way down or put it into the MUTEor STAND-BYposition. Turn the amplifier off.

This avoids the possibility of a turn-off transient from another component getting to the speakers. Because of the tremendous output power in the KSA amplifiers, the amplifier should not be turned on or off with music playing. This can arc the speaker output relays and potentially damage the amplifier.

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Contents ~~0 Introduction Table of Contents Unpacking Basic Installation Remote TURN-ON InstallationLocation AC Power Considerations Cabinetry ConsiderationsAmplifier Feet REMOTE, MASTER/SLAVE Connections Linking Multiple AmplifiersBasic Installation Connections Input and Output ConnectionsConnections KSA Amplifier Operation Amplifier OperationPAGE12 Description of TURN-ON Sequence System Noise Considerations Bias Level Meter Front Panel Meter Button Remote Control Functions Battery InstallationSimple TROUBLE-SHOOTING Steps Protection CircuitryOperation Questions and Answer Questions and Answer Specifications PAGE22Warranty and Service Krell

KSA-100S, KSA-300S, KSA-200S specifications

Krell Industries is renowned for its high-end audio equipment, particularly in the realm of amplification. The KSA series, which includes the KSA-300S, KSA-100S, and KSA-200S, showcases the brand's commitment to delivering superb sound quality, advanced technology, and exceptional build quality. Each model in this series brings its unique features and characteristics, appealing to audiophiles and music enthusiasts alike.

The KSA-300S stands out as a powerhouse amplifier, capable of delivering an impressive 300 watts per channel into 8 ohms. It utilizes Krell's proprietary Class A-AB design, which combines the efficiency of Class AB with the sonic purity of Class A. This model incorporates advanced thermal management systems, ensuring stability during extended listening sessions. The KSA-300S also features dual-mono construction, allowing for superior channel separation and minimizing crosstalk, resulting in an expansive soundstage with precise imaging.

Next, the KSA-200S offers a blend of power and finesse with its 200-watt output per channel, making it a versatile choice for various speaker types and room sizes. Like its larger counterpart, the KSA-200S employs a Class A-AB design, but its lighter footprint allows for easier placement in audio systems. The build quality is impeccable, featuring a robust chassis that minimizes vibration and enhances sound clarity. Additionally, it includes Krell’s advanced input stage, ensuring minimal signal degradation and optimal performance.

Lastly, the KSA-100S, with its 100-watt per channel output, is ideal for those who appreciate high-performance audio in a more compact package. Despite its smaller size, it retains many of the high-end features found in the larger models. The KSA-100S delivers exceptional dynamic range and musicality, making it perfect for smaller listening environments. It also employs Krell's unique cooling design, which allows the amplifier to maintain optimal performance without overheating.

In conclusion, Krell Industries' KSA series amplifiers represent the pinnacle of audio engineering. With their Class A-AB designs, advanced thermal management, and robust build quality, the KSA-300S, KSA-200S, and KSA-100S offer options for various listening environments and preferences. Whether you're seeking a powerful amplifier for large speakers or a compact solution for intimate audio spaces, the KSA series provides unparalleled performance and sonic excellence.
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