Erzetich Bacillus II+ – Level Audio

At a glance

Device type
Headphone amplifier
Amplifier technology
Solid-state
Headphone outputs
4-Pin XLR, 6.3 mm
Built-in DAC
No
Power
314 mW (bal.)

All technical data

Erzetich

Erzetich Bacillus II+

€1,999.00
Tax included

On BackorderDelivery in approx. 2 weeks

Bacillus II+ features a triple-reinforced power supply, true dual-mono design and fully balanced architecture for clear, dynamic, precise sound.

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At a glance

Device type
Headphone amplifier
Amplifier technology
Solid-state
Headphone outputs
4-Pin XLR, 6.3 mm
Built-in DAC
No
Power
314 mW (bal.)

All technical data

Bacillus II+

Fully balanced dual-mono headphone amplifier with triple-reinforced power supply

The Bacillus II+ takes the engineering of its smaller sibling, the Bacillus II, to a new level. With a triple-reinforced power supply—separated for each channel and the auxiliary electronics—it delivers a true dual-mono design for exceptional clarity and channel separation.

Its fully balanced architecture doubles speed and power, resulting in playback that is as dynamic as it is precise. For maximum flexibility, it also provides single-ended inputs and outputs.

A robust metal chassis shields against magnetic interference and ensures long-term durability. Elegant wood side panels add a refined touch and integrate seamlessly with the amplifier line’s signature design language.

Erzetich Bacillus II+ view

Sound character

Detailed and fast, without being bright.

Technical Specifications

Headphone impedance 8–600 Ω
Frequency response 0.5 Hz–900 kHz, −1 dB (balanced mode); 4 Hz–450 kHz, −1 dB (unbalanced mode)
Output power (per channel) 314 mW (balanced), 157 mW (unbalanced)
Outputs 4-pin XLR (balanced), 6.35 mm jack (unbalanced)
Inputs 3-pin XLR (balanced), RCA (unbalanced)
Power consumption 9 W
Power supply input voltage 230 V / 50 Hz or 115 V / 60 Hz
Dimensions (W × H × D) 260 mm × 105 mm × 240 mm
Weight 2990 g
Character Detailed and fast, without being bright

Data sheet

Device type
Headphone amplifier
Amplifier technology
Solid-state
Built-in DAC
No
Power into 32 Ω
314 mW (bal.)
Headphone outputs
4-Pin XLR, 6.3 mm
Balanced output
Yes
Inputs
XLR, RCA
Pre-amp output
No
Weight
2.99 kg

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