Krell Industries KPA, KBL specs

All Krell Industries and Krell Digital products use this pin-out for inputs and outputs.

c. Balanced RCATerminatiom uses two-conductor coaxial cable:

See Drawing1 at the rear of the Manualfor details.

1 pr. of RCAconnectors are used on each end of the cable with this termination; 4 prs. total are used if this termination is used at both ends.

Red RCACenter pin = first cable center conductor (0 ,or +) White RCACenter pin = second cable center conductor (180 or -) Outer Ring, both RCA = shield from around the two center conductors

Used for inputs S-I, S-2, S-3, S-4, Record Outputs, and the Main output of the KBLwhen operated in dual-mono.

Used for both inputs and the Main output of the KPAwhen used in dual-mono.

Can be used between two KPAsand two KBLsoperating in dual-mono.

d. Balanced RCAto XLRTermination; uses two-conductor coaxial cable

See drawing 2 at the rear of the Manualfor details.

2 prs. RCAand I pr XLRconnectors are used on each pair of audio cables

The XLRend uses the termination detailed in section b above; the RCAend uses the termination detailed in section c above.

Pin 2 on the XLRis the non-inverted signal and is soldered to the red RCA;Pin 3 on the XLRis the inverted signal and is soldered to the white RCA.

Can be used between two KPAand two KBLoperating in dual-mono.

e. Balanc~ KPAInput Termination; uses two-conductor coaxial cable.

See Drawing3 at the rear of the Manualfor details.

2 prs. of RCAconnectors are used for each cable; 4 prs. total.

This is a special termination that allows for a balanced input from the cartridge to two KPAs.There is no other use for this termination.

4. Cable Requirements for Inputs and Outputs

KBL, KPA specifications

Krell Industries, a name synonymous with high-fidelity audio, has made significant strides in the high-end audio equipment market with its KPA and KBL models. These amplifiers epitomize Krell's commitment to exceptional sound quality, advanced technologies, and innovative design, catering to audiophiles who seek unparalleled listening experiences.

The Krell KPA, a cutting-edge power amplifier, showcases Krell’s renowned high-performance design. One of its standout features is the use of an ultra-linear, class-A amplification topology. This design principle not only enhances audio fidelity but also ensures lower distortion levels, allowing music to be reproduced with incredible detail and clarity. The KPA is also engineered to deliver substantial power output, with sufficient reserves to drive even the most demanding speaker loads, making it an ideal choice for dynamic music genres.

Another noteworthy aspect of the KPA is its sophisticated thermal management system. The use of oversized heatsinks and intelligent fan control keeps the amplifier cool during extended listening sessions, thereby preserving performance and longevity. The KPA also includes advanced connectivity options, including RCA and XLR inputs, which cater to a variety of system configurations, ensuring versatility in integration with other high-end audio components.

Conversely, the Krell KBL, a preamplifier model, is designed to complement the power capabilities of the KPA. The KBL's main features include a fully balanced design and multiple gain stages that contribute to its exceptional signal-to-noise ratio. This ensures that the audio signal remains pristine, free from interference and distortion, resulting in a true-to-life reproduction of recordings. The preamplifier also offers an impressive array of inputs, including analog and digital options, allowing users flexibility in their source selection.

Both the KPA and KBL incorporate Krell's proprietary technologies, such as the Cast™ technology, which facilitates a three-dimensional soundstage and unrivaled musical character. This technology seamlessly enhances the relationship between components, creating a cohesive sound that many audiophiles strive for. Furthermore, the build quality of both models is exceptional, with premium materials and craftsmanship that reflect Krell's dedication to performance and aesthetics.

In summary, Krell Industries' KPA and KBL models combine innovative technologies, remarkable power, and unmatched audio quality, making them ideal choices for serious music lovers. Their features, performance, and elegant design showcase Krell's unwavering commitment to the pursuit of audio excellence, setting new standards in the high-end audio luxury market.