Hiraga's Le Pré-Pré revisited
under
Prepre (Aufholverstarker) fur MC-Tonabnehmer in Basisschaltung - wie Hiraga MC Preamp - als Fertiggerat; Hersteller gesucht - Phono - allgemein - Analogue Audio Association
(post #12) there are two circuits based on Hiraga's Le Pré-Pré.
Who have heard both modern versions ?
under
Prepre (Aufholverstarker) fur MC-Tonabnehmer in Basisschaltung - wie Hiraga MC Preamp - als Fertiggerat; Hersteller gesucht - Phono - allgemein - Analogue Audio Association
(post #12) there are two circuits based on Hiraga's Le Pré-Pré.
Who have heard both modern versions ?
Attachments
Last edited:
Le PrePre - LTSPICE model
Hi,
I just made a diagram in LTSPICE, for the P-version, using the 2SA1613 instead of the 2SA737
It is the 2SB737 that I use (bought at the Maison de l'Audiophile) but I have no model for it; it has the same Rbb of 2 ohm. A very important design element I recollect.
View attachment Hiraga LePrePre P-version 2SA1316 - 2SB737 .asc
the curve
Amplifies 36 dB.
Have fun.
Hi,
I just made a diagram in LTSPICE, for the P-version, using the 2SA1613 instead of the 2SA737
It is the 2SB737 that I use (bought at the Maison de l'Audiophile) but I have no model for it; it has the same Rbb of 2 ohm. A very important design element I recollect.
View attachment Hiraga LePrePre P-version 2SA1316 - 2SB737 .asc
the curve
Amplifies 36 dB.
Have fun.
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