ATOMO 4 – Maximum performance in the smallest of spaces

• • Extremely compact, powerful 4-channel amplifier
  • Wide input voltage range 0.4 Vrms – 5 Vrms (low level) / 1.6 Vrms – 20 Vrms (high level)
  • Inputs flexibly configurable (floating / fixed ground, switchable load resistors)
  • Remote detection (BTL)
  • High pass / low pass filter. Inputs designed in Molex industry standard (Micro-Fit)

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 @ 14.4 V
• Thermal cutoff threshold: 93 °C (± 5 %)

OUTPUT POWER RMS @ 14.4 V (1 % THD)

• Output power RMS @ 4 Ω: 60 W x 4 or 150 W x 2 [BTL]
• Output power RMS @ 2 Ω: 75 W x 4
• T.H.D. @ 4 Ohm: < 0.2 % (1 kHZ / 90 Power rating ref)
• T.H.D. @ 2 Ohm: < 0.6 % (1 kHZ / 90 Power rating ref)
• Minimum load: 2 Ohm 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 kOhm
• High level input impedance: 21 Ohm (dummy load with jumper)
• Ground reference (LL only): OPEN – 21 Ohm
• S/N (AP filter 10 Hz – 22 kHz):

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&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 g