Single Ended EL509 in Enhanced Triode Mode Released .
Nano-AT SE 300B ( 10watts ), now with SRPP /6922/5687 driver tube replaces the E280F now, fully regulated power supplies and fixed bias for more power and better bass defination.Featuring FINEMET® ,Nanocrystalline Cut C core Output Transformers @ T1.3 Tesla , Simply the Best Metal currently available,exhibiting ultra low insertion loss , very low distortion and absolute Clarity . Fully regulated power supplies used with the new SE 300B Amplifier. Charming Music Company - CMC- USA RCA inputs and extra thick copper plated GAOFEI speaker binding posts, or copper terminal speakON connectors.The SE300B produces 10 watts of output in Fixed Bias for better bass definition, more power but still retaining the natural Warmth of timbre that Single Ended Amplifiers are so well known for.This provides unparalleled performance creating a massive sound stage , with powerful drive characteristics presenting a lifelike performance .Bass is solid and tuneful ,very quick dynamics providing an excellent platform for a lush and full Midrange and Crystal Clear high's ,with the added touch of natural warmth and timbre which is very enticing. As an alternative we now offer Lundahl or Silk Audio Transformers.
Lundahl transformers have been in production since 1958, and are found in many high end tube manufactured amplifiers,also used extensively in the professional recording industry .
They are very accurate across the whole Audio Speactrum, real winners .
General Transformers Japan - FINEMET® Nanocrystalline Output Transformers are the most detailed and analytical sounding transformers I have ever heard.
Leading edge detail, micro dynamics and the all important PRAT is ever present.Fast transient recoveries are a real strength of this design as Nanocrystalline is a hyper efficient metal, so recovery is very quick from demanding bass notes, they do not get muddled or wooly sounding ,often found in Single Ended Amplifiers with cheaper output transformers.
Finemet's uncanny ability to retrieve the last ounce of detail with incredible speed and dynamics. We have chosen the coupling capacitor very carefully with this design to give lifelike presence and warmth to vocalists.
Bass is very tuneful and solid, not just a one note thump , they are Characterised by the snap !on the snare or kick in the bass drum with a real presence that naturally falls with the decay of the note.
More info on Technical Note's and the More Tab.
FINEMET® Output Transformers.
With a Tesla rating of T1.3, FINEMET® Nanocrystalline is a market leader for crystal clear presentation of all music styles.
It has up to 1/5 the core loss of normal silicon steel cores, enabling very low distortion and insertion loss ,having the best permeability of all audio output transformers .
It allows you to hear deep into the mix, combined with multifilar winding techniques has no equal in this regard.
Bass is fast and solid, midrange has a vividness of character as if you were there and the highs have excellent detail where every breath and nuance is captured.
Lundahl HiB and Silk Audio Transformers now available with all our range of Amplifiers , both are wide band excellent performers .
The Teflon Coupling Capacitors we use enable a very large sound stage with absolute clarity without being bright or edgy at all.
No other component has more influence on an amplifiers sound quality than the output transformer, it is at the heart of any tube amplifier design.
Further information on drop down tab's.
Rod Coleman Constant Current Source Heater & Plate supplies for the 300B, simply the best way to achieve quiet running & performance of the 300B , a very marked improvement on AC hum pots.
Output Power 10 W @ 3 % THD, 50 Hz Gain 7. 3 dB Input Voltage for 1 W output 1.24 V RMS Input Sensitivity 3 V RMS THD+N @ 1 W, 1 kHz 0.25% THD+N @ 10 W, 1 kHz 1.5% THD+N @ 10 W, 50 Hz 3.0% Bandwidth 36 kHz -3 dB, ref. 1 kHz @ 1 W - M19*
The Speakon terminals are a very robust and solid connector in the professional audio arena provided excellent mechanical stability and audio clarity .
Traditional Binding posts from CMC are an option.
XLR & RCA switchable inputs.
Neotech OCC input wire, Dale Resistors.
The latest low ESR Mundorf Power Supply Capacitors.
Teflon Coupling Capacitors used & Yamamoto Analogue L/R mV Meter
More information and images soon.
Single Ended EL509
Frequency Response (-3.0dB)Source Impedance = 0.7X
20Hz - 115KHz -3dB. M4 Lamination Output Transformers .
Amorphous Double C Core Output Transformers are also available on request.
Dual Source RCA Input with the new TOCOS Volume Control.
A typically smooth single ended midrange sound, very punchy bass, and excellent high frequency response.
Running in enhanced triode mode produces very low distortion and will drive speakers at 88dB/1 watt and above .
The design is direct coupled with no capacitors directly in the signal path.
This Amplifier will drive speakers from 87dB / 1 watt and above.
The EL509 tube in enhanced triode was first championed by Tim Paravicini of Manley Audio as a DIY KIT Amplifier in the 1990's.
FINEMET® is a registered trademark of Hitachi Metals. This Nanocrystalline is characterised by very low distortion and insertion loss with up to 1/5 the core loss of Silicon Steel. As an ouput transformer has a large impact on a tube Amplifiers performance FINEMET® has no real equal and is simply the best !
Silk Audio Output Transformers , details in More TAB.
This very attractive Single Ended Amplifier has no problem outperforming the 2A3 and 300B in terms of power , with excellent frequency response.
This design has the option of Ultra Linear or Triode mode switchable .
Very smooth midrange , strong bass and crystal clear high frequencies.
For those needing more power and punch than a 300B this is the obvious choice .
This Amplifier will drive speakers from 87dB / 1 watt and above.
A fully Balanced differential XLR input is also available as an option for those who need it.
These output Transformers are Custom Wound by Mr Suzuki for Teramoto.
Multifilar Layering for extended frequency response .
25Hz - 50 KHz -1dB
At Tesla T1.3 this metal is characterised by excellent detail retrieval, very low distortion and up to 1/5 the core loss of Iron based metal's like M6 GOSS.
These come as a standard issue or Signature Series.
Line Input Transformer
1:1 FOR 'BALANCED BRIDGING' INPUTS
• Ideal for balancing any high-impedance unbalanced input
• Wide bandwidth: -3 dB at 0.25 Hz and 80 kHz
• Recommended for levels up to +19 dBu at 20 Hz
• High input impedance: 14 kΩ
with 10 kΩ load
• High common-mode rejection: 124 dB at 60 Hz
This transformer is designed for use in wideband line input stages. Distortion
remains very low and CMRR remains high, even when driven by high source
impedances. The primary is fully balanced and its terminals may be reversed
to invert polarity, if required. A 30 dB magnetic shield package is standard.
Customers have questions, you have answers. Display the most frequently asked questions, so everybody benefits.
High End Volume Control from TKD for very even tracking and for added transparency in the signal chain a step up from the normal Blue Alps most commonly used in many production amplifiers.
High Quality , low noise Torodial Power Transformers now used in all our designs .
We are able to supply these high end tubes with our SE300B , please email for price details .
Audiophile Quality CMC RCA inputs
Mundorf Silver Gold Hook up wire for our PSSS and Silver Secondary Transformer Based Amplifiers.