Reference 7 Tube Linestage Preamplifier By Audio Research
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Product Summary:
The Reference 7 is a high-performance Audio Research preamplifier built on the Reference 20 platform, offering advanced engineering, ultra-low noise, exceptional clarity, and a highly detailed, natural, and immersive musical presentation.
Click To Read MoreTrial Period
90 Days (Exchange)
Countries Shipped
USA
Burn-In Time
100 Hours
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Price:
Audio Research, Preamplifiers, Tube Linestages
Reference 7 Tube Linestage Preamplifier By Audio Research
$28,000
The Reference 7 is a high-performance Audio Research preamplifier built on the Reference 20 platform, offering advanced engineering, ultra-low noise, exceptional clarity, and a highly detailed, natural, and immersive musical presentation.
Click To Read MoreProduct Description
Reference, Reimagined
The Reference 7 is a high-performance reference preamplifier from Audio Research, designed to deliver many of the company's latest engineering advancements in a more accessible offering.
Built on the same ground-up development platform as the acclaimed Reference 20, rather than being an adaptation of an earlier design, the Reference 7 incorporates key innovations that emphasize exceptional clarity, precision, and musical realism. It is an excellent choice for listeners seeking outstanding sonic performance and refinement.
Shared Foundations
The Reference 7 features the same advanced mechanical architecture found in Audio Research's flagship Reference 20 preamplifier. Its multi-layer, multi-metal chassis is engineered to minimize resonance through controlled energy management, while custom suspended, mass-loaded circuit boards help preserve signal integrity for exceptional audio performance.
Drawing on technologies developed for the Reference 20, the Reference 7 delivers outstanding transparency, expansive soundstage, and remarkable spatial detail. Positioned just below the flagship model, it represents a significant advancement over previous Reference series designs, offering an immersive and highly refined listening experience.
Precision and Control
The Audio Research Reference 7 incorporates an advanced power supply designed to reduce the noise floor while providing exceptional long-term stability. Solid-state regulation helps achieve extremely low noise levels and enhanced reliability, while reference-grade output coupling capacitors—derived from the flagship Reference 20—help preserve signal purity throughout the audio path.
Carefully engineered and extensively voiced, the Reference 7 delivers outstanding resolution, revealing fine musical detail without compromising tonal richness or musical flow. Compared with earlier Reference series models, it offers greater refinement, texture, and transparency, creating a listening experience that is both highly revealing and deeply engaging. Rather than simply exposing every detail of a recording, the Reference 7 is designed to reproduce music with remarkable realism, balance, and emotional impact.
A New Standard
The Reference 7 represents a significant advancement rather than a simple refinement of earlier designs.
Built on a new development platform incorporating the latest innovations from Audio Research, it delivers performance that extends beyond previous reference models across a wide range of listening conditions. The result is a highly resolved, dynamic, and cohesive presentation that reflects a modern interpretation of the brand’s high-end engineering approach.
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Product Description
Lehmann Black Cube SE II – Precision Phono Stage for True Audiophiles
The Black Cube SE II builds on the acclaimed SE circuit, upgraded with superior sockets and an adjustable bass filter, allowing you to fine-tune your system to your personal listening preferences. Designed for maximum musical engagement, it delivers the sensation that your favorite recordings were crafted just for you, bringing instruments and vocals closer than ever.
Tailored for Every System
Compatible with nearly all MM and MC cartridges, the Black Cube SE II includes solder-free slots for custom impedance adjustments, plus an extra hardwired plug-in location for immediate flexibility. Optional matching resistors can be provided with your order at no extra cost, making it easy to optimize the phono stage for your system.
Audiophile-Grade Audio Circuitry
At its core, a high-precision passive RIAA filter network sits between two linear gain stages, built with surge-proof, narrow-tolerance polypropylene capacitors. This design preserves transients, dynamics, and timbres with exceptional clarity. Professional-grade input stages reduce noise while enhancing precision and power. Additional modules handle hum, high-frequency interference, and random voltage suppression, and the double-sided audio board ensures a low-interference signal path.
Dependable PWX Power Supply
The external PWX power supply features a custom toroidal transformer with static shielding, providing stable, safe, and powerful operation. Gold-plated Neutrik XLR connectors maintain secure connections, while shielded cables and mechanically damped aluminum housings minimize vibrations and interference.
Elegant Design
With a choice of silver, black, or chrome-plated front panels, the Black Cube SE II combines audiophile-grade performance with a refined aesthetic that looks as good in your HiFi rack as it sounds in your system.
Professional Endorsement
Known for its neutral, natural sound, Lehmann equipment is trusted by professional recording studios and music experts worldwide. The Black Cube SE II offers a high-fidelity listening experience that reveals every nuance in your favorite recordings.
Note: The sonic profile of Lehmann gear is perhaps the most neutral we can find. This brand is quite popular with our professional music/recording studio clients.
Reviews
AUDIO
“Upgraded to the SE version by the PWX, it was definitely poking the fire again like almost no other phono pre in its price range. Merciless heavy rock by Vanilla Fudge or massive bigband attacks by Count Basie were just about to blaze through the listening room. Pimped in such a hot manner, the Lehmann Black Cube SE II is state-of-the-art.”
https://jaguaraudio.com/wp-content/uploads/2021/06/EN-2020_01-AUDIO-Black_Cube_II.pdf
Hifi News
“This is a true audiophile phono stage and, partnered with equipment of equal quality, the results are remarkable. Indeed, the SE II is difficult to fault even compared to the competition in a much higher price bracket. The exceptionally low background noise allied to a fabulous rhythmic and tonal rendition makes it worthy of consideration for those seeking the most detail from their vinyl without having to make a hyperspace price jump.”
https://jaguaraudio.com/wp-content/uploads/2021/06/EN_review_Hifi_News_02_2010_SEII_screen.pdf
Hifi News
“To ?nd more depth and detail in music I know so well was a remarkable experience and I warmed to this little gem of a phono stage all over again.”
Specifications
The impressing technical details of the Black Cube SE II.
Sensitivity for output level 775 mV/ 0 dB (with activated high gain switch): MM: 3.8 mV/1 kHz; MC: 0.38 mV/1 kHz
Gain 1 kHz: MM: 46 dB; MC: 66 dB
Maximum input level 1 kHz: MM: 45 mV; MC: 4,5 mV
Signal to noise ratio (RMS unweighted): MM: 71 dB; MC: 63 dB
Gain: 36 dB, 46 dB, 56 dB, 66 dB
Channel separation: > 80 dB at 10 kHz
Input impedance: 47 kohms, 1 kohm, 100 ohms, 1 x custom load, 1 x hardwire slot
Output impedance: 47 ohms
Input capacitance: 100 pF
Channel mismatch: typ. 0.5 dB
Bass filter: 16 settings between 7 Hz and app. 90 Hz
Power consumption: < 3 W
Outer dimensions W x D x H:
Audio section: 114 mm x 124 mm 50 mm
PWX power supply: 93 mm x 233 mm x 45 mm
Weight:
Audio section: 0.6 kg netto
PWX power supply: 1.0 kg netto
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