The Signature Edition features a more versatile and better-sounding circuit designed to use the ECF802/6JW8 in place of 6AN8a for the front end, with new options to use E80CC/6211 (as well as 12BH7, ECC82/12au7 types) for the driver tube positions. 300B tubes of course, stay the same. Twin internal independent circuits (dual mono) for total channel isolation, and a significantly reduced noise floor. Gain is reduced from 18 dB to 12 dB to allow for more range on the Allnic exclusive 61-Step Constant Impedance Attenuator. These upgrades are beneficial for digital audio, while preserving the low noise floor necessary for lower output phono stages that require more gain from the line stage.
Description:
L-10000 Preamplifier is Direct Coupled OTL/OCL Tube Preamplifier.
OTL/OCL means “Output Transformer Less” and “Output Capacitor Less”.
In OTL/OCL amplifier, there is no coupling device from preamp to power, that is, final output tubes are directly connected to the power amplifier. We need Output Capacitor or Output Transformer for separating AC music signal from DC operating potential, if not, the latter will destroy power amplifier or the loudspeakers. But these two coupling devices are kinds of obstacles on signal transmitting which impart their own charactor (aka color), increase distortion and consume small signal under the physical efficiency theory. In addition, they put a limitation on signal dynamics, so OTL/OCL has been considered the best solution on amplifiers.
- When we can remove these two coupling devices from the signal path we attain the best result.
- No coloration added to musical signal.
- Extremely detailed expression, natural harmonics and subtle musical decay.
- Lowest distortion due to the absence of coupling parts.
- The widest musical dynamics.
- Some circuit experts could worry about DC potential in the music signal. Allnic uses “the floating power supply circuit” which does not make any DC potential.
OTL/OCL circuit is basically SEPP, “Single Ended Push Pull”, so we need a ” cancellation circuit” which adjusts the balance of signal between upper and lower power output tubes’ input grid.
Newly developed 61 STEP CONSTANT IMPEDANCE BRIDGED TYPE ATTENUATOR, a world premiere, is installed inside, which contributes to L-10000’s different dimensional sound.
Allnic uses the most sophisticated "Active Balanced Positive and Negative Feedback Circuit", in which the penthode of 6AN8 controls perfectly the current with extremely low distortion and with the highest speed, creating a dynamic response unlike any other linestage commercially manufactured to date.
L-10,000 OTL/OCL "Signature Edition"
The Allnic L-10000 Signature Edition line stage delivers a transformative listening experience. Combining cutting-edge technology with impeccable sound quality. I don't know all the why's, but the OTL (Output Transformer-Less) and OCL (Output Capacitor-Less) design seemingly ensures no perceived coloration, allowing the music to flow with stunning transparency and realism. If it has a character, it is life, body, and scale to the presentation, making every performance feel immersive and emotionally engaging. Its ability to pull the curtain back from recordings and place listeners directly in the hands of performers is unmatched, capturing all the texture and color of the music with intoxicating timbral accuracy.
Compared to other high-end preamplifiers that I have experienced, the L-10000 stands out for its sheer resolution and perceived neutrality. While many competitors play trade-off's, IE, lean toward velvety richness or warmth, this for that, the L-10000 achieves a perfect balance between precision and vibrancy. It excels at rendering subtle musical details seemingly without imposing its own character on the sound, allowing recordings to shine in their truest form with vast differences between. Unlike some line stages that may sacrifice detail for emotional warmth, etc. the L-10000 delivers both technical perfection and musical soul. These characteristics seem to allow it to transcend even bad recordings to allow you to hear the mix and what they were trying to do, with at least good sound. It makes everything enjoyable! Stripping away electronic nuisances at such a level, is hard to fathom. There is nothing to analyze. You are not looking for something. It is threadbare and involving. Checks every box and beyond expectations.The thoughtful design and build of the L-10000 Signature Edition further enhances its appeal. The 61-step constant impedance attenuator made me rethink everything regarding what a volume control is, while its quiet operation ensures uninterrupted listening sessions. It is very linear, and does not have you wanting "between steps". Internally, dual parallel boards with independent power supplies contribute to exceptional channel separation and a lowered noise floor. These refinements make it not only a sonic wonder, but also a joy to use daily. Even its remote control projects commitment to detail and craftsmanship.
For audiophiles seeking a final purchase, the Allnic L-10000 Signature Edition is among the few, if any others IME. It captures every nuance of recordings while adding body and scale seemingly without compromising neutrality. Whether paired with Allnic amps or other top-tier amplifiers, it truly is a guarantee to great results just putting it in the system. While its $30,000 price tag places it firmly in the luxury category, its performance alone justifies the investment for those who demand nothing less than perfection in playback.Paul Hovenga of Many Moons Audio has 28 years of experience as a product development consultant, including the Allnic Mu-8R "Custom" version and other major manufacturers. Many Moons Audio is also an Authorized USA Allnic Dealer.