Bacillus

Products

Precision Headphone Amplifier

Erzetich Bacillus headphone amplifier

Small, compact and robust, the Bacillus is a precision grade headphone amplifier that comfortably adapts to any impedance headphones. The bright profile is quick in transitions and urges a direct sound, most notably in rock genres. But the low distortion also adapts quickly to acoustic and delivers a very realistic and intimate experience. All in all, Bacillus is an impressive performer and thanks to its diminutive size is an ideal road companion for travelling sound professionals. The Bacillus might be our entry-level headphone amplifier, but on looks and performance you could be forgiven for thinking this elegant headphone amp is among our high-end range – it’s only our generous price tag that gives the game away.

499 EUR

Make it Yours

Behind the Scenes

Soldering a PCB for Erzetich Bacillus headphone amplifier

The Bacillus was the first project we successfully completed - although it wasn't the first we started. The initial prototype looked pretty cute: small, compact, stylish and finished off with a shiny acrylic front panel.

 

Our intention was to create a portable headphone amp that was as small as possible. Initially, the chassis on the Bacillus was 5 mm shorter, but because of the crowded rear we felt it was too risky so opened her up a little.

 

Fortunately, we were able to maintain a compact size which is quite a feat when you consider the amp has a built-in power supply, huge input capacitors and a heat sink. And because of its size, we wanted to name it after something small – and bacteria (lat.  Bacillus) seemed appropriate.

Technical Specifications

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): 0.0003 %

 

IMD: 0.025 %

 

Power consumption: > 3 W

 

SNR: >102 dB

 

Power supply input voltage: 230 V/50 Hz or 115 V/60 Hz

 

Dimensions (W x H x D): 110 mm x 64 mm x 180 mm

 

Weight: 850 g

 

Character: Slightly bright

Features

5 years warranty

 

WIMA high quality pulse input capacitors

 

class-a power amplifier

 

highest grade audiophile op-amp

 

Alps Blue Velvet volume potentiometer

 

gold plated RCA connectors

 

on-board 2 x 15 V/15 W stabilized power supply

 

40.000 uF power stabilization capacitors

 

robust aluminum chassis

 

RoHS compliant

Reviews

 

 

- Review by HiFi Wigwam

- Review by Old & New Sound, Spain (Spanish, original language)

Soldering a PCB for Erzetich Bacillus headphone amplifier
Erzetich Bacillus headphone amplifier
Soldering a PCB for Erzetich Bacillus headphone amplifier
Soldering a PCB for Erzetich Bacillus headphone amplifier
Soldering a PCB for Erzetich Bacillus headphone amplifier