Mosconi ATOMO 4 4-channel amplifier, Class D, 4 x 60W at 4 Ohms

Mosconi ATOMO 4 offers maximum performance in the smallest of spaces. This extremely compact, powerful 4-channel amplifier has wide input voltage range -- 0.4 Vrms - 5 Vrms (low level) / 1.6 Vrms - 20 Vrms (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.

Optional: EXT2RCA for low-level input.

Features

• Class-D amplifier
• 4 x 60 Watts at 4 Ohms

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: 0.58 A at 14.4 V

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

Output Power RMS at 14.4 V (1 % THD):

Output power RMS at 4 Ohms: 60 W x 4 or 150 W x 2 [BTL]

Output power RMS at 2 Ohms: 75 W x 4

T.H.D. at 4 Ohms: < 0.2 % (1 kHZ / 90 Power rating ref)

T.H.D. at 2 Ohms: < 0.6 % (1 kHZ / 90 Power rating ref)

Minimum load: 2 Ohms with musical signal

Signal Input:

Low level input sensitivity range: 0.3 ÷ 5 Vrms

High level input sensitivity range: 1.2 ÷ 20 Vrms

Bandwidth (- 3 dB ÷ 10 W): 5 Hz ÷ 31 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 - HP - LP

Onboard filter slope: 12 dB/Oct

Onboard filter frequency: 80 Hz

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

Start and Stop compliance: yes

Connections:

Low/High level input: Micro-Fit

Speaker out: Mini-Fit

Power supply: Mini-Fit

Appearance:

Dimensions: 109 x 65 x 34 mm

Weight: 320 grams

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

Manufacturer Documents

DATASHEET for Mosconi ATOMO 4 Amp

MANUAL for Mosconi ATOMO 4 Amp

catb v1 03.25.2026