Even a diamond should be carefully designed and cut.

Now  EU-01 also has a updated version  --- EU-01_MKII !

EuLeit  Audio Studio ( ELAS ) makes only Hi-End audio amp Modules.

2010 EU-01_MKII very low noise version 

2006 EU-01_v1.1

   EuLeit Ultima-PRE amp EU-01 HOLCO version1.1

2010 new EU-01_MKII circuit main structure

2006 EU-01_v1.1 circuit main structure

2006 Ultima-Pre Dale version1.1

In 2004, mtlin12 licenced to DZ the ULTIMA-PRE Balanced Preamp Modules as

above. Each channel includes two ULTIMA amp Modules with MOS Voltage

Shunt Regulator on a PCB, uses DALE resistors RIFA PHE450 capacitors and

4 ultra low noise Linear Integrated System's Dual JFET LS-844.

Now EuLeit Audio will support the same PCB, for Unbalanced stereo MODE ,

but use well-matched JFETs,  HOLCO resistors instead of using DALEs and

limited volume handicraft only for better  performance.

You can just add a good quality stepped attenuator, a transformer and a case

to become an ultra low noise, hi-end quality audio pre-amplifier.

 Of  course you can also use PGA2320 remote volume control kit, an input signal

select module and a case to become a remote controlled he-end audio preamp.

 In 2003, mtlin12 designed and made the ULTIMA-1 150W MOSFET Power Amp , which used the same

Amplifier Structure as all other ULTIMA series amps like DB-01 ULTIMA-01 PRE , ULTIMA-Power and

ULTIMA-NGFB except ULTIMA-0dB Power Diamond Buffer  ( 0dB means no voltage amplitude ).

ULTIMA's Leitmotiv :

• 1st input differential stage uses Cascode LS-844
• ( Linear Systems ultra low noise Dual JFET  ).
• 1st input differential stage uses Zero Tempco Low
• Capacitance JFET and LM334 Cascoding CCS.
• 1st input differential stage uses Current Mirror .
• 2nd Voltage Amplifier Stage uses Cascode Single
• Ended (SE) JFET with adjustable JFET CCS.
• 2nd VAS cascode voltage references use Blue LED
• and Vbe Multiplier  with JFET  Cascoding CCS.
•  
• Output Stage uses Diamond Buffer ( -01 PRE ),
• Power Diamond Buffer ( -NGFB ) or MOSFET.

  Eu-  /ju:/  means good, well, like  euphony : pleasing effect of sound.

  Leit  /lait/  means lead, like  leitmotiv  : leading motif, a dominant and recurring theme.