Connectingthe KAV-150a to YourSystem

WARNING

Whenmakingconnections to this compo- nent or any other, makesure the power amplifieris off andthe preamplifieris in the muteor stand-bymode.Makesure all cable terminationsare of the highestquality, free fromfrayedends,shorts,or coldsolderjoints.

INPUT AND OUTPUTCONNECTIONS

Topreventthe introduction of humor other noise into the system,organizeall wiring betweenthe KAV-150aand other system componentsneatly. Separate AC wires fromaudio cables.

1.Connectthe cables from your speakers to the outputterminalsof the amplifier.

TheKAV-150aamplifier utilizes five- waybinding post speakerterminals for the left andright channels.Thespeaker terminals acceptspadelugs, bare wire, bananaplugs, or pins. Thered termi- nals are usedfor positive connections andthe blackterminals are usedfor the negative connections.

2.Connectthe interconnect cables from yourpreamplifierto the input terminalsof the amplifier.

The KAV-150aamplifier is equipped with balancedandsingle-endedinputs. Thebalancedinputs use three pin XLR

connectorsandthe single-endedinputs use RCAconnectors. Krell ®recom- mendsthe use of balanced intercon- nects. Balancedinterconnects not only havethe ability to minimizesonic loss but also haveimmunityto inducednoise, especially for installations using long cable lengths. Balancedconnections

have6dBmoregain than single-ended connectionsWhen.level matchingis crit- ical, keepthis specificationin mind.

WARNING

Useonlyoneset of inputsto the amplifierat a time. TheKAV-150aamplifier is shipped with shorting pins in the XLRinputs. These pins shouldremainin the XLRinputs if the KAV-150aamplifier is operatingin the sin- gle-endedmode.Whenthe shorting pin is inserted, pins 1 and3 are shortedtogether. Theshorting pins mustbe removedto con- nect the KAV-150aamplifier for balanced operation.

The XLR pin configuration is described below:

Pin1 Ground

°)

Pin 2 Non-inverting(0

Pin 3 Inverting) (180

Connectthe receptacle end of the AC powercordto the IECpowerconnectorin the backpanel of the KAV-150aConnect. the ACpowercord wall plug into a stan- dardACwall outlet.

4.Theamplifier is nowreadyfor operation. SeeAmplifier Operation, on page6.

12 VDC REMOTEPOWERIN

This input accepts 12 volt power on/off signals from other Krell ®components,as well as from other devices that incorpo- rate a 12 volt poweron/off trigger output. This allows for remoteturn on/off of the KAV-150awith the power activation of another Krell ®componentas well as with other components used in a custom installation.

KRELL®KAV-150a

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KAV-150a specifications

The Krell Industries KAV-150a is a powerful amplifier that has gained a dedicated following among audiophiles and home audio enthusiasts. Renowned for its robust build quality and exceptional audio performance, the KAV-150a delivers an immersive listening experience that highlights the best in music reproduction.

One of the most striking features of the KAV-150a is its Class A/B amplification design. This architecture combines the advantages of both Class A and Class B operation, allowing the amplifier to provide high power output while maintaining low distortion levels. The KAV-150a is capable of delivering 150 watts per channel into 8 ohms, and the power increases to 300 watts per channel at 4 ohms, making it suitable for driving a wide variety of loudspeakers.

Another key characteristic of the KAV-150a is its fully balanced input circuitry. Utilizing balanced XLR inputs, the amplifier minimizes noise and interference, preserving the integrity of the audio signal throughout the amplification process. This design choice is critical for maintaining clarity, particularly in complex musical passages or dynamic soundscapes.

The KAV-150a also features a unique heat dissipation system, which incorporates a toroidal transformer and large heatsinks to ensure efficient cooling. This feature helps to maintain consistent performance during extended listening sessions, preventing overheating and enabling the amplifier to operate reliably under high-demand conditions.

In terms of build quality, Krell is known for their solid construction, and the KAV-150a is no exception. It boasts a durable chassis that not only enhances its aesthetic appeal but also contributes to its resistance to vibrations that could adversely affect sound quality.

Moreover, the KAV-150a includes various input options that cater to different audio setups, making it versatile enough to integrate easily into most home audio systems. Its user-friendly design allows for straightforward connections and adjustments, whether using traditional analog sources or digital components.

In conclusion, the Krell Industries KAV-150a stands out in the market for its impressive combination of power, clarity, and build quality. Audiophiles and music lovers seeking an amplifier that delivers faithful sound reproduction will find the KAV-150a to be a worthy investment, capable of enhancing their overall listening experience across a broad spectrum of music genres. With its advanced technological features and solid engineering, the KAV-150a continues to be a favored choice among high-end audio enthusiasts.