Lehmann Audio
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Features
Enhanced PWX II power supply with inductive filtering for ultra-low-noise DC
66 dB maximum gain supports all MM and exotic MC cartridge systems
Professional-grade input stages from a high-end mixing console design
Ultra-precision passive RIAA equalization with low-loss MKP capacitors
Discrete Class A output stage with high quiescent current for open, swift sound
Front-panel toggle switches for gain and soft bass rolloff filter
High-quality internal relays for precise function control
Free slot per channel for custom impedance matching
Adjustable input capacitance values for cartridge optimization
Drives long cables effortlessly with a robust output stage
Shielded connection to PWX II power supply via Neutrik connectors
PWX II includes a second output for backward compatibility with Black Cube series
Exceptional soundstage width, dimensionality, and natural treble performance
What's in the Box?
A milestone among the phono preamps.
An ambitious phono stage that forges a link between the Black Cube series and the top-of-the-line model Silver Cube: this is our Decade. However, it is rather a high flyer than a stopgap. Owing to its cutting-edge technology, it has the gift to spoil even the most demanding music enthusiasts. And this with a flawless sound, which points far beyond its price category
Audiophile all the way
Due to its extremely carefully selected components and numerous setting options, the Decade can, of course, be custom-tuned to your individual needs. Thus, e.g., even exotic MC systems can be connected hassle-free to this outstanding phono preamp. On the output side, the discrete class A output stage with no overall negative feedback ensures an open and natural sound and also allows for driving long cables easily. The gain setting plus a switchable ‘soft bass roll-off filter’ are conveniently operated via toggle switches located on the front panel. The actual functions are controlled by internal high-quality relays. Always with your musical enjoyment in mind, we have also developed the PWX II power supply, which lets you benefit from a further enhanced performance. Like in the Silver Cube, it is linked to the audio device via a shielded cable with Neutrik connectors. Whatever your music preferences are, the Decade impresses with a harmonic symbiosis of passionate temperament and precise contours.
Features
- ultra-precise passive RIAA equalisation network for perfect transient response and channel balance
- powerful class A output stage for an open, natural sound
- custom impedance slot ≠ front panel operated gain setting
- front panel operated soft bass roll-off filter
- PWX II power supply for a substantially powerful and relaxed reproduction
- non-magnetic aluminium housing with mechanically dampened top cover to avoid microphony and resonances
- RCA sockets with gold-plated contacts
- shielded power supply cable
Options
- aluminium face plate available in silver or black
| Parameter | Specification |
|---|---|
| Physical Specifications | |
| Outer Dimensions (W x D x H) | Audio section: 110 mm x 280 mm x 50 mm PWX II power supply: 110 mm x 280 mm x 50 mm |
| Weight | Audio section: 0.87 kg PWX II power supply: 1.56 kg |
| Key Features | |
| RIAA Equalization | Ultra-precision passive RIAA equalization network |
| Capacitors | Low-loss precision MKP capacitors |
| Output Stage | Discrete Class A output stage with high quiescent current design |
| Control System | Front-panel toggle switches with internal relay control |
| Power Supply | PWX II external power supply with inductive filtering Backward compatible with PWX power supply |
| Connectivity | Shielded Neutrik connector cable |
| Cartridge Compatibility | Compatible with MM and MC cartridges (including exotic MC systems) |
| Technical Specifications | |
| Maximum Gain | 66 dB |
| Gain Settings | 36 dB, 46 dB, 56 dB, 66 dB |
| Input Impedance | 47 kohms, 1 kohm, 100 ohms 1 x custom load |
| Output Impedance | 5 ohms |
| Input Capacitance | 47 pF to 1,370 pF |
| Bass Filter | 50 Hz, 6 dB/oct. |
| Audio Specifications | |
| Sensitivity for Output Level 775 mV / 0 dB | MM: 3.8 mV/1 kHz MC: 0.38 mV/1 kHz (with activated high gain switch) |
| Gain at 1 kHz | MM: 46 dB MC: 66 dB |
| Maximum Input Level at 1 kHz | MM: 45 mV MC: 4.5 mV |
| Signal to Noise Ratio (RMS unweighted) | MM: 78 dB MC: 69 dB |
| Channel Separation | > 80 dB at 10 kHz |
| Channel Mismatch | typ. max 0.5 dB |
| Power Specifications | |
| Power Consumption | app. 13 VA |