Lehmann Audio Decade Phono Preamplifier

Lehmann Audio Decade Phono Preamplifier

High-End Mm/Mc Phono Stage With Pwx Ii Power Supply For Precision Vinyl Playback

The Lehmann Audio Decade is a high-performance MM/MC phono preamplifier designed for demanding vinyl playback systems. Positioned between the Black Cube series and the flagship Silver Cube, the Decade combines advanced phono-stage engineering, extensive cartridge matching flexibility and a dedicated PWX II power supply to deliver a spacious, dynamic and highly refined analogue listening experience.

Designed for serious music enthusiasts, the Decade features ultra-precise passive RIAA equalisation, a powerful Class A output stage and flexible gain, loading and capacitance adjustment. Its two-box design separates the audio circuitry from the PWX II power supply, helping provide a clean and stable operating environment for the delicate phono signal.

Key Features

• High-performance MM/MC phono preamplifier for demanding analogue systems.

• Dedicated external PWX II power supply for powerful and relaxed musical reproduction.

• Ultra-precise passive RIAA equalisation network for accurate tonal balance and excellent transient response.

• Powerful Class A output stage designed for an open and natural presentation.

• Four selectable gain settings: 36 dB, 46 dB, 56 dB and 66 dB.

• Flexible cartridge loading with 47 kΩ, 1 kΩ and 100 Ω input impedance options.

• Custom impedance slot for advanced cartridge matching.

• Adjustable input capacitance from 47 pF to 1,370 pF.

• Front-panel operated gain setting.

• Front-panel operated soft bass roll-off filter.

• Non-magnetic aluminium housing with mechanically damped top cover.

• Available in aluminium, black aluminium and chrome finishes.

• Made in Germany.

Designed For Serious Vinyl Playback

The Lehmann Audio Decade is engineered for listeners who demand a high level of musical refinement from their analogue systems. It is designed to work with a wide range of MM and MC cartridges while providing the flexibility required for precise system matching.

Its carefully developed circuit architecture is designed to preserve the character of the cartridge and recording, delivering a presentation with spacious imaging, precise contours, dynamic expression and a natural, open treble response.

Ultra-Precise Passive Riaa Equalisation

The Decade uses an ultra-precise passive RIAA equalisation network designed to provide accurate frequency correction while maintaining excellent transient response and channel balance.

This architecture helps the phono stage reproduce the delicate information stored in the record groove with a clean, natural and highly controlled presentation.

Powerful Class A Output Stage

A powerful Class A output stage contributes to the Decade's open and natural sound character. Designed to provide a clean and stable signal path, the output stage helps the phono preamplifier deliver strong dynamics and precise musical contours.

The result is a phono stage capable of revealing the differences between cartridges while maintaining a coherent and engaging presentation across a wide range of music.

Flexible Cartridge Matching

The Decade supports both moving-magnet and moving-coil cartridges through a broad range of gain and loading options.

Four selectable gain settings provide flexibility for different cartridge output levels, while input impedance options of 47 kΩ, 1 kΩ and 100 Ω allow compatibility with a wide range of cartridge designs.

The dedicated custom impedance slot provides an additional option for advanced cartridge matching, while adjustable input capacitance from 47 pF to 1,370 pF offers further flexibility for MM cartridge applications.

Front-Panel Control & Soft Bass Filter

The Decade provides convenient front-panel operation for gain selection and the soft bass roll-off filter.

The bass filter operates at 50 Hz with a 6 dB/octave slope, helping to manage unwanted very-low-frequency energy while maintaining the musical character of the audible bass range.

Dedicated Pwx Ii Power Supply

The Decade uses a dedicated external PWX II power supply designed to provide a powerful and stable supply for the phono stage.

Separating the power supply from the audio section helps the Decade maintain a clean operating environment for the sensitive phono circuitry. The two-box configuration also contributes to the product's high-end system architecture and premium construction.

Premium, Low-Resonance Construction

The Decade uses a non-magnetic aluminium housing with a mechanically damped top cover designed to minimise microphony and unwanted resonances.

Its audio section and PWX II power supply use matching compact chassis dimensions, allowing the two components to integrate cleanly into a high-end stereo system.

Features

• High-performance MM/MC phono preamplifier.

• Ultra-precise passive RIAA equalisation network.

• Powerful Class A output stage.

• Four selectable gain settings: 36 dB, 46 dB, 56 dB and 66 dB.

• Input impedance options: 47 kΩ, 1 kΩ and 100 Ω.

• One custom impedance slot.

• Adjustable input capacitance from 47 pF to 1,370 pF.

• Front-panel operated gain setting.

• Front-panel operated soft bass roll-off filter.

• Bass filter: 50 Hz, 6 dB/octave.

• Output impedance: 5 Ω.

• Channel separation greater than 80 dB at 10 kHz.

• Channel mismatch typically maximum 0.5 dB.

• Non-magnetic aluminium housing.

• Mechanically damped top cover.

• External PWX II power supply.

• Available in aluminium, black aluminium and chrome finishes.

• Made in Germany.

Specifications

• Model: Decade

• Product Type: MM/MC Phono Preamplifier

• Gain: 36 dB / 46 dB / 56 dB / 66 dB

• MM Sensitivity for 775 mV / 0 dB Output: 3.8 mV / 1 kHz

• MC Sensitivity for 775 mV / 0 dB Output: 0.38 mV / 1 kHz

• MM Maximum Input Level: 45 mV / 1 kHz

• MC Maximum Input Level: 4.5 mV / 1 kHz

• MM Signal-to-Noise Ratio: 78 dB RMS unweighted

• MC Signal-to-Noise Ratio: 69 dB RMS unweighted

• Input Impedance: 47 kΩ / 1 kΩ / 100 Ω

• Custom Loading: 1 × Custom Load Slot

• Input Capacitance: 47 pF – 1,370 pF

• Output Impedance: 5 Ω

• Channel Mismatch: Typically maximum 0.5 dB

• Channel Separation: Greater than 80 dB at 10 kHz

• Bass Filter: 50 Hz, 6 dB/octave

• Power Consumption: Approximately 13 VA

• Audio Section Dimensions: 110 × 280 × 50 mm (W × D × H)

• PWX II Power Supply Dimensions: 110 × 280 × 50 mm (W × D × H)

• Audio Section Weight: 0.87 kg net

• PWX II Power Supply Weight: 1.56 kg net

• Country of Manufacture: Germany

Why Buy From Soundtrails

A high-performance phono stage is central to achieving the best possible performance from a serious vinyl playback system. Cartridge loading, gain structure, input capacitance, grounding, power supply design and system matching all influence the final performance of an analogue setup.

At SoundTrails, our Audio Video Architects help you select and configure the right phono stage for your turntable, cartridge and amplification system. From cartridge matching and analogue system design to professional installation and complete hi-fi integration, we help ensure that every component works together to deliver the highest possible performance from your vinyl collection.