Mosconi ATOMO 1 1-channel amplifier, Class D, 1 x 205W at 4 Ohms, 12V and 24V versions

Mosconi ATOMO 1 offers maximum performance in the smallest of spaces. This extremely compact, powerful 1-channel amplifier has wide input voltage range -- 0.4V - 5V (low level) / 1.6 V - 20V (high level). It features inputs that are flexibly configurable (floating / fixed ground, switchable load resistors) and remote detection (BTL). For high pass / low pass filter, inputs feature Molex® industry standard (Micro-Fit) connections. Available in 12 V and 24 V versions.

Optional: EXT2-RCA for low-level input (see Specifications).

Features

• Class-D amplifier
• 1 x 205 Watts at 4 Ohms
• 12 V and 24 V versions

Manufacturer Specifications

Power Supply:

Power supply voltage: 10 - 16 V

DC-DC converter typology: Unregulated – Push Pull

External fuse: 1 x 20 A

Power-on/Power-off voltage threshold: 9 V/6 V

Mute delay time: 3 secs

Autosense power-on (HL only): BTL source only

Overall efficiency: > 75 %

Standby current: < 0.1 mA (typical)

Idle current: 0.45 A at 14.4 V

Thermal cutoff threshold: 93 degrees C (± 5 %)

Output Power RMS at 14.4V (1% THD)

Output power RMS at 4 Ohms: 1 x 205 W (250 W at 16 V)

Output power RMS at 2 Ohms: 1 x 350 W

T.H.D. at 4 Ohms: < 0.08 % (1 kHz / 90 Power rating ref)

T.H.D. at 2 Ohms: < 0.1 % (1 kHz / 90 Power rating ref)

Minimum load: 2 Ohms with musical signal

Signal Input:

Low level input sensitivity range: 0.26 ÷ 0.7 Vrms

High level input sensitivity range: 1.3 ÷ 3.5 Vrms

Bandwidth (- 3 dB ÷ 10 W): 5 Hz ÷ 35 kHz

Low level Input impedance: > 15 kOhms

High level input impedance: 21 Ohms (dummy load with jumper)

Ground reference (LL only): OPEN - 21 Ohms

Features:

Onboard filter configuration: OFF - LP

Onboard filter slope: 12 dB/Oct

Onboard filter frequency: 80 Hz

Autosense power-on (HL only): BTL source only

Start & Stop compliance: yes

Connections:

Low/High level input: Micro-Fit

Speaker out: Mini-Fit

Power supply: Mini-Fit

Appearance:

Dimensions: 86 x 65 x 34 mm

Weight: 280 grams

Finishing: Black anodized

(RMS = Root Mean Square, measure of continuous power in audio devices)

Manufacturer Documents

DATASHEET for Mosconi ATOMO 1 Amp

MANUAL for Mosconi ATOMO 1 Amp

catb v1 03.25.2026