RADAR is a price search engine. We link to the original listing — we never sell direct. Transactions happen on the source site.
The Krell Evolution 707 is an uncompromising centrepiece for reference music and home theatre systems, coupling legendary Krell preamplifier technology with state-of-the-art digital processing and the latest surround formats.
This pre-owned example is in great condition, finished in aluminium, and includes the original remote (no original packaging).
Visit our Lane Cove showroom and experience the reference quality of the Evolution 707.
Why Choose the Krell Evolution 707 Processor?
The 707 is a flagship surround processor that combines legendary Krell preamp technology with advanced DSP and HDMI 1.4 for uncompromising performance in music and home theatre.
• Reference Digital Processing: Dual-core 32-bit DSPs at 1.8 giga operations per second for precise surround decoding.
• CAST & Balanced Inputs: Low-noise CAST and XLR inputs for the purest signal path.
• HDMI 1.4 Video: 4 inputs with isolated circuitry for broadcast-quality 1080p/60 Hz transmission.
• Flexible Integration: Fixed-level AV throughput for surround preamp compatibility.
• Great Pre-Owned Value: Reference processor in great condition with remote.
Audition the Krell Evolution 707 at our Lane Cove showroom to experience its pristine audio and video performance—perfect for hi-fi enthusiasts and cinephiles seeking a reference surround processor.
With its robust analogue and digital sections, the Evolution 707 delivers the legendary Krell sound with full surround decoding, making it the ideal centrepiece for high-end music and home theatre. In great pre-owned condition with remote, this aluminium processor is ready to elevate your system with uncompromising clarity, dynamics and control.
With dual-core 32-bit Crystal DSPs and isolated video circuitry, the Evolution 707 delivers broadcast-quality video up to 1080p/60 Hz and pristine audio performance—perfect for audiophiles and cinephiles building a high-end system.
Technical Specifications
• Product Type: Pre-owned
• Analogue Audio Inputs: 2 CAST (4-pin bayonet), 1 balanced XLR pair, 5 single-ended RCA pairs, 1 Discrete 7.1 RCA, 1 Tape RCA, 1 VCR RCA
• Digital Audio Inputs: 4 HDMI, 4 EIAJ optical TOSLINK, 4 Coaxial RCA
• Analogue Video Outputs: 2 Component RCA, 2 S-Video DIN, 2 Composite RCA
• Digital Processing: Dual-core 32-bit Crystal CS497004 DSP (1.8 GOPS)
• Video Support: Up to 1080p/60 Hz with isolated circuitry
• Display: Vacuum Fluorescent, 2 lines × 50 characters, adjustable lighting
• Control: IR remote, RS-232, 12 V trigger
• Dimensions (W×H×D): 438.2 × 222.3 × 539.0 mm
• Weight: 23.59 kg
• Finish: Aluminium
• Included: Original remote
Learn more about the Evolution 707 here.
Let us show you the reference Krell Evolution 707 at Len Wallis Audio. Explore our pre-owned collection here or contact our team to audition this processor at our Lane Cove showroom or enquire online.
Len Wallis Audio Excellence Promise
Since 1978, Len Wallis Audio has been a trusted name in hi-fi, curating premium audio solutions from our Lane Cove showroom in Sydney. For over four decades, we’ve selected products that deliver outstanding performance and quality.
Our focus on innovation ensures every item meets audiophile standards. Whether upgrading or building a new system, our team helps you find the ideal audio solution for your needs.
Experience the Evolution 707 in person with an audition at our Lane Cove showroom. With expert guidance and a commitment to satisfaction, we make your audio journey seamless and rewarding.
Ready for reference surround processing with the Krell Evolution 707?
Call (02) 9427 6755
Email Sales@lenwallisaudio.com.au
Or visit us at 64 Burns Bay Road, Lane Cove, NSW, 2066
Generating expert take…
Krell Industries, founded in 1980 in the United States by Dan D'Agostino and his wife Rondi, emerged from a passion for pushing audio engineering boundaries. Based initially in Bridgeport, Connecticut, and later settling in nearby Orange, the brand drew its name from the advanced alien race in the 1956 film Forbidden Planet, symbolizing limitless technological power. The company's debut at the 1981 Consumer Electronics Show with the KSA-100, a high-power Class A amplifier, sparked immediate demand and established Krell as a force in American hi-fi innovation.
Krell specializes in high-end amplification, with its power amplifiers—epitomized by flagships like the Master Reference Amplifier—earning legendary status for their raw dynamics and precision. The lineup extends to preamplifiers, surround sound processors, digital-to-analog converters, CD and Super Audio CD players, loudspeakers, and subwoofers, all engineered for uncompromised performance in music and home theater systems.
Positioned firmly at the pinnacle of the high-end audio market, Krell commands respect among discerning audiophiles for its cutting-edge circuitry, massive power supplies, and relentless pursuit of sonic excellence. A top-tier brand alongside legends like Levinson and Threshold, it appeals to buyers seeking reference-level gear that defines the genre, even amid recent ownership transitions following Rondi's passing in 2024.
See all Krell listings on RADAR.
