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Erzetich Bacillus Tilia


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Erzetich Bacillus Tilia

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799,00 € tax incl.

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Audiophile Headphone Amplifier

Bacillus Tilia headphone amplifier is not only for the ones who adore excellent sound, but also for the ones who like having an object of art on their desk. Every Bacillus Tilia is different because every chasis is individually hand carved and painted with seven coats of four different varnishes, giving it the look of an aged piece of linden wood. Every piece is unique in its pattern.

Using premium quality input capacitors and highest grade op-amps, this headphone amplifier sounds smooth as if you were listening to a tube valve amp. Every piece of music is a spectacle on Bacillus Tilia, making you discover sounds and clarity you never knew existed. This is the most versatile headphone amplifier in our range. It just sounds fine on everything.

Bacillus Tilia is based on Bacillus technology, with some improvements:

better, premium quality, input capacitors
different op-amps
different chasis - linden wood with aluminium foil inside

Bacillus Tilia is a homage to the Slovenian heritage, where linden tree represents a symbol of the country.

Behind the scenes:

"The first idea was to create another Bacillus with different electronic specifications (therefore the sound timbre) and in a different enclosure - in a glossy black wooden chassis with gold(ish) front panel, something resembling a concert piano. The procedure of creating this type of chassis was way too complicated and time consuming to keep the unit in a reasonable price range.

There was some linden wood around the workshop and the experimenting began in various directions. Linden wood (lat. Tilia) is interestingly textured and easy to mechanically work with. In fact, it is used for (art and decorative) carvings. At the end the result of our various approaches became right the opposite of our primal idea: instead of glossy black finish it became artificially aged, rugged, wooden, while the front panel remained silver to keep a connection with Bacillus "classic".

Tilia approach also made possible to have every unit unique in texture."


"The design might be rather eccentric but what we have here is a headphone amp that will please those music fans who hate to miss out on anything. This amp drags out most of those subtleties that are often too shy to make an appearance. The Bacillus Tilia picks them up and puts them on a pedestal for your enjoyment."
Paul Rigby, Hi- Fi World magazine, UK

"I listen a lot to classical music in my study, usually wearing headphones. Bacillus Tilia is such a great object on my massive wooden desk. And what a sound. Now listening to my collection of classical music CDs is a spectacle."
Klaus Meiern, Germany

"This headphone amplifier doesn't have any dominant sound character – it sounds precisely and unobtrusively. In this way it emphasizes the music, making it sound like it should: clear and dynamic."
Tasos Minopolous, Greece


  • Obbligato Gold premium quality pulse input capacitors 
  • highest audiophile grade op-amps 
  • double 180 MHz/250 mA Burr-Brown current buffer 
  • Alps Blue Velvet volume potentiometer 
  • no output capacitors 
  • gold plated RCA connectors 
  • silver interconnecting wire on input 
  • on-board 2 x 15 V stabilized power supply
  • hand carved/artificially aged linden wood chasis


Headphone impedance:       

8-600 ohm

Output power:

181.5 mW (8 ohm)
161 mW (600 ohm)

Frequency response:

3 Hz-500 kHz, -1dB

THD (1 kHz):

0.0002 %


0.034 %

Power consumption: 

3 W


>104 dB

Power supply input voltage:

230 V/50 Hz or 115 V/60 Hz

Dimensions (W x H x D): 

130 mm x 90 mm x 160 mm


1010 g


Silky neutral, slightly warm


Warranty: 2 years


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Erzetich Bacillus Tilia

Erzetich Bacillus Tilia

Erzetich Bacillus Tilia