Endstufen Krell (in Dietlikon Schweiz) ab August 2020

Solo 375 XD und 575XD

Mono Power Amplifier

375 Watt Verstärker mit der neuen Krell iBias Technologie

Krell's iBias Class A technology allows our latest amplifiers to run in full Class A mode to full power while minimizing heat generation. Previous efforts at using a "tracking" bias, while effective, only measured the incoming signal and set bias levels from this information. Our new patent pending iBias technology significantly elevates the effectiveness of previous designs by calculating bias from the output stage. This seemingly small change in topology results in a dramatic improvement in sound quality, especially midrange richness and purity.

The core of the technology is an innovative, patent pending design for a dynamic intelligent bias circuit. Our iBias Class A circuit directly measures the output current of the amplifier and adjusts the bias to the optimum level. Because iBias Class A measures the output current, the real time demands of the specific speaker connected to the amp are directly incorporated into the circuit function. In addition, iBias Class A even reduces the bias when the signal is at very low levels, making its operation undetectable by ear and even by standard amplifier measurements.

Duo 125 175 und 300 XD  Stereo Endverstärker mit der neuen Krell iBias Technologie

Der Kern der in den neuen DUO 125, 175 und 300 XD Stereo Endstufen angewandte  KRELL Technologie ist ein innovatives, zum Patent angemeldetes Design für eine dynamische, intelligente Vorspannungsschaltung. Die Krell iBias-Klasse-A-Schaltung misst direkt den Ausgangsstrom des Verstärkers und stellt die Vorspannung auf den optimalen Pegel ein. Da iBias Technologie den Ausgangsstrom misst, werden die Echtzeitanforderungen des spezifischen, an den Verstärker angeschlossenen Lautsprechers direkt in die Schaltungsfunktion einbezogen. Darüber hinaus reduziert die iBias Klasse A Schaltung die Vorspannung sogar dann, wenn sich das Signal auf sehr niedrigen Pegeln befindet, so dass sein Betrieb für das Gehör und sogar für Standardverstärkermessungen nicht wahrnehmbar ist.

Details zum DUO 125 XD: https://www.krellhifi.com/products/duo-125-xd-stereo-amplifier/

Details zum DUO 175 XD: https://www.krellhifi.com/products/duo-175-xd-stereo-amplifier/

Details zum DUO 300 XD: https://www.krellhifi.com/products/duo-175-xd-stereo-amplifier/

TRIO 300 XD

3 Channel Power Amplifier

300 Watt Amplifier Featuring Krell iBias Technology 

CHORUS 4200 XD

4 Channel Power Amplifier

200 Watt Amplifier Featuring Krell iBias Technology 

CHORUS 5200 XD

5 Channel Power Amplifier

200 Watt Amplifier Featuring Krell iBias Technology  

CHORUS 7200 XD

7 Channel Power Amplifier

200 Watt Amplifier Featuring Krell iBias Technology 

Dimensions 434 mm W x 194 mm H x 536 mm D

7 Channel Power Amplifier

100 Watt Amplifier Featuring Krell iBias Technology 

The amplifier design uses Krell Current Mode technology that is fully differential and discrete in the critical gain stages. This results in a highly linear and extended frequency response, well beyond the range of hearing, for smooth effortless highs and tight high impact bass.

The power supply consists of two 787VA toroidal transformers and 160,000uF of capacitance. This is shared among all the channels so all of that power is available to the channels with the most demand.

In real world conditions the left, right, and center channels require the lion’s share of the power so this gives the Theater 7 a more effective power supply than other amplifiers that have smaller dedicated power supplies for each channel.

Dimensions

434 mm W x 194 mm H x 536 mm D