300B 24W（40Hz )Freq. Response 8～80ｋHz（ DC 60ｍA 3ｋ-8Ω -3ｄB , 2.5W ）
2A3/6A3 /PX25 10W (50Hz)Freq. Response 14Hz - 60KHz (3.5K - 8 ohm, 1W, -3dB)
20hz -60Khz - 2dB
Extended Frequency Amorphous Option extra $400
20Hz - 80 Khz - 2dB
>Potted Permalloy 6Hz - 65kHz @-3dB measured in circuit
Extended Potted Permalloy Option
4Hz - 70KHz @-3dB measured in circuit
All Power supplies are made with custom wound EU Toroidal Transformers with extra shielding for low residual eddy currents .
The 6A3 is a dual mono power rail with Tent Labs 10H Choke
The 300B / PX25 Tent Labs Choke 10H
All Capacitors Low ESR
Ripple > -90dBv or about 0.0031%
Input impedance: 100 kohm
Input voltage: 240V 50/60hz
120V available by request)
Power Transformer 150VA /6A3 -250mA /300B/PX25
Size: 300B/6A3 400 x 300 18kg
PX25 300x 200 16kg
300B/2A3/6A3/PX25 - Heaters Powered by Rod Coleman Constant Current Source DC for perfect performance ,no audable hum
6A3 Input sensitivity: 1.5Vrms S/N Ratio: 80dB THD >1% -3W/1kHz
300B Input sensitivity: 1.5 Vrms S/N Ratio 80dB THD >1% – 8W/1KHz
Max output of 10 watts, is tube dependent as 300B tube brands vary on total power output and biasing
PX25 Input Sensitivity 2Vrms S/N Ratio 80dB THD >3% - 6W/1KHz
Single Ended 6A3/300B
Our head designer has worked in the Professional Broadcasting Field for over 30 years .
The shortest simplest signal path is paramount to excellent audio reproduction
We only use two tubes !
One input and one output .
Direct Coupling is used with the 6A3 and Nickel Skirted Plate and Grid Chokes feeding a Teflon Capacitor with the 300B.
GZ32 Rectifier used in the 6A3 & 300B has a slow start up to protect valuable tube Cathodes and low voltage drop producing excellent results.
All film Capacitors in the power supply for speed and dynamics.
Top quality components , including Dale WW, TKD and Caddock thick film resistors.
The integrated models use TKD Etched Volume Controls.
Handmade point to point wiring .
Neotech Bare OCC wire with specially treated coating and Silk Tube Dielectric.
Neotech Solid Silver Hook Up Wire and Binding Posts area a feature of the 300B that uses the Electra Print PSS- Silver Secondaries Output Transformer.
Higher Voltage wire is Neotech Stranded OCC wire 600v Teflon Dielectric
Single Ended PX 25
This is a new concept for Nano-AT , the driver stage is a ECC88/6922 dual triode , with a Teflon Capacitors on the first stage and DC Coupled the second stage direct to the PX25.
Both 1/2s of the ECC88 have Constant Current Source power driven to the plates , exhibiting very stable and clean DC, enabling exceptionally low noise and distortion keeping the Teflon Capacitor constantly charged for excellent bass, dynamics with a natural purity to the sound.
A GZ32 Rectifier with low voltage drop , all Film Power Supply Capacitors, for very smooth running with very low impedance for excellent bass response, fast transients ,great midrange and crystal clear high frequencies.
The wide bandwidth balanced input transformer allows the use of fully balanced XLR inputs or switchable to RCA input.
CMC Speaker and RCA Input Connector's with Gold Plated XLR for Balanced and switchable inputs.
A profesional monitor grade Amplifier
Electra Print M19 EI Copper or PSSS Silver Secondary
15Hz -28KHz -1dB
The Standard Amorphous Double C core is
20hz -60KHz - 2dB
Special order 20hz-80KHz - 2dB
Teramoto Nanocrystalline Finement
Standard Model 6A3 Amplifier
14Hz - 60KHz (3.5K - 8 ohm, 1W, -3dB)
20W SE OPT Permalloy
* 6Hz - 65kHz @-3dB measured in circuit
M19 Core Electra-Print
Electra Print M19 Copper is a great performer, we have measured frequency response flat from 20Hz to 28 KHz -1dB with excellent bass, warm and full midrange and very clean high end extension well beyond the human hearing range.
The PSSS Silver Secondary Electra Print is the ultimate in low distortion and clarity a real Audiophile Product.
These Transformers have been in production for over 30 years and brands like Eddy Current ( Moth Audio) DeHavilland,Wellborne Labs, Cyrus Brennan, Modwright and many others have used them to great success.
Our Amorphous Range of Single Ended Amplifiers exhibit great clarity and speed , an expansive soundstage ,excellent dynamics and very wide frequency reproduction .
PRAT pace rhythm & timing abound ,musical reproduction is very natural with correct timbre of the original recording faithfully reproduced .
Micro Detail and Dynamics the real strength of a correctly designed single ended amplifier are present as if you were there , whether in a studio or live
Teramoto Finement Nanocrystalline are the most detailed and analytical transformers I have ever heard.
Made for the Audiophile who wants to hear deep into the original mix
Nanocrystalline metals can be produced by rapid solidification from the liquid using a process such as melt spinning. This often produces an amorphous metal, which can be transformed into an nanocrystalline metal by annealing above the crystallization temperature. Wiki
All Jack Elliano's Transformers are guaranteed for 25 Hz - 20KHz minimum but in testing we have measured 15Hz -28KHz -1dB almost ruler flat.
Bass extension is extraordinary ,midrange with the EI cores is full and rich and real strength of this type of core, while C cores are a little leaner.
High Frequencies are very revealing and super low in distortion with an excellent square wave measurement with no HF ringing.
M19 with very high permeability is able to sustain DC flux saturation better than other metals allowing for deep extended bass and an ease of musical reproduction across all frequencies, free from stress and early roll of in the bass register when heavy demanding musical notes are in the mix.
Silver wire audio transformers have been known to make an improvement in audio reproduction for decades. Silver has a higher sensitivity to flux change (200%) anabling it to reproduce lower level information produced by the output stage including harmonics produced by musical instruments. ElectraPrint Audio has a new line of transformers using Partial Silver Stranded Secondary (PSSS).
35W 300B Special Edition Permalloy
* 4Hz - 70KHz @-3dB measured in circuit
20W SE OPT Permalloy
* 6Hz - 65kHz @-3dB measured in circuit