Our Collection
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Brand
- Abendrot
- Audeze
- Audioquest
- Audio Research
- AVM
- The Bespoke Audio Company
- Brinkmann Audio
- Bryston
- The Chord Company
- Constellation Audio
- Dan D'Agostino
- DCS
- Degritter
- Devialet
- Dynavector
- Exogal
- Focal
- Franco Serblin
- Harbeth
- Harmonic Resolution Systems
- Jadis
- Klaudio
- Koetsu
- Krell
- Kronos
- Linn
- Lumin
- Lyra
- Magico
- Magnepan
- Martin Logan
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McIntosh
- C70 Valve Preamplifier
- MA252 Hybrid Integrated Amplifier
- MA5300 Integrated Amplifier
- MC2152 Valve Power Amplifier
- MC462 Stereo Power Amplifier
- MHA150 Headphone Amplifier
- MP100 Phono Preamplifier
- C2600 Valve Preamplifier
- MA9000 Integrated Amplifier
- MC1.2KW Monoblock
- MC452 Stereo Power Amplifier
- MCD550 CD Player
- Melco
- Metronome
- Michell Engineering
- Naim Audio
- Pathos
- REL Acoustics
- Shunyata Research
- Sonus Faber
- Soulution
- Stax
- Tangerine Audio
- Tellurium Q
- Ton Träger
- Transparent
- Unison Research
- Vertere
- Wilson Audio
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Ex-Demo / Pre-Owned
- dCS Vivaldi Transport (Ex-demo)
- Focal Scala Utopia Evo (Ex-demo)
- Harbeth 40.2 (Ex-demo)
- Krell S-1200 3D Processor (Pre-Owned)
- Linn Akubarik Exakt Speakers (w/ Katalyst) (Pre-owned)
- Lyra Atlas SL Cartridge (Ex-demo)
- Magnepan 1.7 (Ex-demo)
- Martin Logan Classic ESL9 (Ex-demo)
- Martin Logan Expression ESL-13A Speakers (Ex-demo)
- Martin Logan Motion 15 (Ex-demo)
- Melco N1Z 40th Anniversary Server (Ex-demo)
- Naim NAC-272 (Ex-demo)
- Naim Nait 5si (Ex-demo)
- Naim NAP 300 DR (Ex-demo)
- Naim Supercap DR (Ex-demo)
- Peak Consult The Incognito X Speakers (Pre-owned)
- Focal Sub Air (Ex-Demo)
- Linn Akurate 2200 Power Amplifier (Ex-Demo)
- Roksan Oxygene Integrated Amplifier
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Type
- Active Speakers
- AV Processor
- Mains Conditioning
- Racks and Isolation
- Record Cleaners
- Speaker Stands
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Room Correction
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FM Tuner
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Cables
- Alpha EF Mains Cable
- Alpha NR Mains Cable
- Delta EF Mains Cable
- Delta NR Mains Cable
- Ethernet Cables - Venom, Alpha and Sigma
- Omega QR Mains Cable
- Sigma NR Mains Cable
- Venom HC Mains Cable
- Venom NR-V12 / NR-V10 Mains Cable
- Audioquest Cable Range
- ChordMusic Cable Range
- Tellurium Q Cable Range
- Sarsen speaker cable
- Balanced Reference
- C-stream Ethernet cable
- Balanced MusicLink Super
- Balanced MusicLink
- Crimson VEE 3 stereo RCA interconnect
- MusicWave
- MusicWave Super
- Optichord toslink to toslink digital optical interconnect
- Prodac VEE3 digital interconnect
- Reference Speaker Cable
- USB SilverPlus digital interconnect
- Headphone Amplifiers
- Master Clock
- Power Supplies
- All In One System
- Digital Music Player
- Headphones
- MC Cartridge
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MM Cartridge
- Phono Stage
- Media Server
- Tonearm
- Turntable
- Valves
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Amplifiers
- 14B³ Amplifier
- 311 Stereo Power Amplifier
- 330 Integrated Amplifier
- 4B³ Stereo Power Amplifier
- 511 Stereo Power Amplifier
- 701 Mono Amplifier
- 711 Stereo Power Amplifier
- 7B³ Mono Amplifier
- B135³ Integrated Amplifier
- Expert 140 Pro
- Expert 210 Pro Dual
- MA252 Hybrid Integrated Amplifier
- MA5300 Integrated Amplifier
- MC2152 Valve Power Amplifier
- MC462 Stereo Power Amplifier
- Naim NAC-272 (Ex-demo)
- Naim Nait 5si (Ex-demo)
- Naim NAP 300 DR (Ex-demo)
- Nait XS 3
- Supernait 3
- Duo 175
- Expert 1000 Pro Dual
- Linn Akurate 2200 Power Amplifier (Ex-Demo)
- MA9000 Integrated Amplifier
- MC452 Stereo Power Amplifier
- Momentum Integrated
- NAP 500 POWER AMPLIFIER
- Original d'Atelier
- Roksan Oxygene Integrated Amplifier
- Simply Italy
- Statement
- Triode 25
- Foundation
- Akurate 4200
- Akurate 2200
- Centaur Stereo
- Momentum Stereo S250
- NAP 100 DR
- NAP 200 DR
- NAP 250 DR
- NAP 300 DR
- Unico Primo
- Pre Amplifiers
- CD Players
- DACs
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Speakers
- .7
- 30.2 40th Anniversary Edition
- A3
- Classic ESL 9
- Diablo Utopia Evo
- Electa Amator III
- Expression ESL13A
- Focal Scala Utopia Evo (Ex-demo)
- Grande Utopia EM Evo
- Harbeth 40.2 (Ex-demo)
- Kanta No 2
- Kanta No.1
- Lignea
- Linn Akubarik Exakt Speakers (w/ Katalyst) (Pre-owned)
- M2
- Maestro Utopia III Evo
- Magnepan 1.7 (Ex-demo)
- Martin Logan Classic ESL9 (Ex-demo)
- Martin Logan Expression ESL-13A Speakers (Ex-demo)
- Martin Logan Motion 15 (Ex-demo)
- Olympica Nova I
- Olympica Nova II
- Olympica Nova III
- P3 ESR 40th Anniversary Edition
- P3 ESR XD
- Peak Consult The Incognito X Speakers (Pre-owned)
- Sasha DAW
- Scala Utopia III Evo
- Stella Utopia EM Evo
- Super HL5+ 40th Anniversary
- TuneTot
- Amati Tradition
- Electromotion ESL-X
- Guarneri Tradition
- Super HL5+
- M3
- Monitor 40.2
- Sabrina
- Serafino Tradition
- Sopra No.2
- Sopra No.3
- Yvette
- S3 MkII
- 1.7i
- 3.7i
- Compact 7ES-3
- 30.1
- Electromotion FX2
- Electromotion ESL
- Alexandria XLF
- Alexia 2
- Aria 948
- Duette
- CLX Art
- Q7 Mk II
- S1 MkII
- S5 MkII
- Majik 109
- Majik 140
- Sub Utopia EM
- Viva Utopia
- Mono Amplifiers
- Subwoofers
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Center Channel
Duo 175 2 Channel Power Amplifier 175 Watt Amplifier Featuring Krell iBias Technology
Krell Class A iBias Technology
Krell's history is rich with breakthrough Class A amplifiers that have helped build the Krell legacy of offering the best sounding amplifiers available. Audiophiles have always considered Class A technology to be the best sounding operating state for amplifiers. However, despite Class A's unrivaled sound quality, it has fallen out of fashion because of recent demands to reduce power consumption and heat in home electronics products. Krell engineering took this challenge and redefined the meaning of high performance power amplifier. Our goal - unmatched performance, elegant design, and a compelling array of features. The breakthrough - a patent pending circuit delivering Class A operation without the excessive heat and wasted energy of conventional designs, housed in a striking new form factor, with network connectivity for advanced access and monitoring. The sound is open and unconstrained, in a manner that rivals live performance and the true sound of voices and instruments. Music and dialogue are reproduced with a richness, detail, and startling dynamics that fill a room.
Plainly stated, Class A designs are the most musically accurate circuit topology available. Class A amplifiers do not suffer from the inherent distortions that all Class AB amplifiers experience. In a traditional Class A design, the output transistors conduct full current at all times regardless of the actual demand from the speakers. Often, only a fraction of this power is needed to reproduce an audio signal at normal listening levels. The rest of the power is dissipated through the amplifier’s heat sinks, producing large amounts of wasted heat. With Krell's iBias™ technology, bias is dynamically adjusted, so the output transistors receive exactly as much power - but only as much power - as they need.
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.
In sliding bias schemes, the circuit merely estimates how much bias is needed based on the input signal and an "assumed speaker load." Compared with iBias Class A, these sliding bias technologies are much less effective - and much less accurate.
Krell range
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Krell
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Krell
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Krell
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Krell