In 1916, Western Electric engineer G.W. Elmen, seeking a material that could be magnetized more easily, developed alloys of iron and nickel that came to be called permalloy. Later, permalloy became important for music reproducing systems. The recently introduced and now famous ‘amorphous cores’ are also based on nickel.
The name Allnic is derived from All Nickel core transformers, and all Allnic’s signal transformers are made with nickel alloy cores such as PC or PB permalloy.
Allnic believes that as a coupling device for amplifying stages, transformers are much better than capacitors. Permalloy transformers are well worth their high cost and difficulty of manufacture, because they transfer over 90% of signal and retain dynamics and fidelity, compared with capacitors and their less than 5% transfer efficiency.
Also, transformer output pre-amplifiers are much safer than capacitor output pre-amplifiers when coupled with solid state amplifiers, even safer than direct coupled solid stage pre-amplifiers, because transformers block any surging voltages to the next stage, surges that can severely damage power amplifiers.
- Permalloy Output Transformers
- Full Engagement Output Transformers
- Line Output Transformer Coupling
- Remote Controlled 41-step Silver ‘Single’ Contact Attenuator
- Powerful Driving Circuitry
- New Vacuum Tube Damping Technology
- Beautiful 20kHz Square Wave Response
- Soft-start Circuitry
- Analogue Power Tube Current Monitors
Allnic uses very large permalloy (Nickel/FeSi) core output transformers. This provides for higher inductance with fewer windings than other designs can provide and results in the great benefit of an extremely wide range of output frequencies.
Conventional output transformers use pre-set secondary windings to accommodate 4, 8 and 16 ohm loudspeaker loads. However, these conventional transformers utilize only one secondary winding at a time, while the other secondary windings remain “idle”.
This approach has two adverse effects. First, the output transformers are not working at their maximum efficiency, reducing their output relative to their potential.
Second, the “idle” windings are not actually “idle”; they are subject to parasitic oscillations, producing their own “signal”. This undesirable electrical information is additive to the transformer’s output, distorting the amplified signal going to the loudspeaker.
Allnic’s “Full Engagement” transformers address these issues by having 4 independent, secondary windings which are always fully connected, never “idled”. This means that all secondary windings are always connected to your loudspeakers, regardless of which output switch position.
In tube amp circuitry, there are two coupling methods; one is capacitor coupling and the other is transformer coupling. Capacitor coupling is the traditional, low cost method. It is somewhat stable but transfers only voltage, not wattage (i.e., not real energy).
With transformer coupling, about 90% of real wattage is transferred (there is still a transformer loss of about 10% of wattage–voltage is not affected). Transformer coupling is superior to capacitor coupling. However, all the advantages of transformer coupling depend on the quality of the transformer and on the choice of tubes.
Allnic Audio manufactures its own transformers and uses what it views to be the best core material, permalloy. Allnic Audio’s unprecedented, wide (16Hz ~ 75kHz,-3db), low distortional, and ultra-flexible(up to 20kHz square wave response) output transformer helps Allnic Audio to realize the ideal transformer coupled amplifier. Of course, gain tubes are also carefully selected for three critical factors for function with the permalloy output transformers : high gm, low internal resistance and high mu.
Allnic Audio’s pre-amps, integrated amps, and headphone amps employ this house made quality attenuator instead of standard, outsourced carbon film potentiometers. The Allnic attenuator provides perfect channel balance and extremely low distortion.
Far from conventional attenuators which use two physical contacts (one for selective, one for constant ring contact).
Allnic attenuator employs ‘single’ contact, that eliminates 50% of contact distortion.
Allnic believes in the importance of using high-quality, low noise and powerful driving circuitry in all its amplifying devices. Therefore, for example, in the M-3000 mk2, we employ the E282F tube (E55L for M-5000) in triode mode as the second stage driver tube, with a load of about 6 k ohms, and using 20 mA of current.
The listener can easily hear and even “feel” the differences between this design and other, more conventional, ones. Please imagine, as you listen to the M-3000 mk2, its sound compared to the sound of an amplifier with conventional 12AU7 or 12BH7’s used as drivers, with a load of about 47 k ohm, and using 2 to 3 mA of current.
Allnic Audio’s patented “Absorb GEL tube damper” technology prevents harmful vibrations from reaching the signal / gain tubes and, therefore, prevents micro-phonic noise propagation in the tubes. The Allnic Audio Absorb Gel damper technology effectively solves a problem that plagues most tube amplification systems.
Provided other tube components do not introduce micro-phonic noise into your system, with the Absorb Gel damping system, you will enjoy a degree of transparent sound that will surprise and please you.
We can show you how beautifully a 20kHz square wave response is reproduced.
Allnic uses soft start circuitry that, after sufficient warm-up only, provides the high voltage supply to the plate of each tube. This protective design results in prolonged tube life and fewer and less frequent issues with tube performance.
In order to provide constant current (bias) monitoring for the power tubes, Allnic uses a separate analogue current meter for each tube.
The meters make it exceptionally easy to see the status of each tube at any time and to respond immediately to any variation in bias by use of the bias control knob for the relevant tube. The meters offer a simple, unambiguous indication of each tube’s status compared to conventional LED bias monitors.