Today’s cars are all wired up into themselves. So much so that you can’t upgrade the head unit because it can open your garage door and shut off your home alarm. So what do you do? Get hooked up with the Massive Audio “Flatline II” a OEM line/drive converter that can take 12 separate OEM channel speaker inputs. It utilizes an auto music sensing turn on with 12V out. The systems can auto sum 2 separate 6 channel network groups for full control of F/R channels! Adjustable outputs levels (>4.8V RMS and an S/N Ratio >105dB) let the installer fine tune any OEM source/ unit into a Massive Audio Power House without losing your head!!




  • Built-in High Quality Audio Decoder
  • D/A Converter with D/A Sampling 44.1KHz
  • Two Summing Network Groups for Full Control of Front and Rear Channels
  • Auto Music Sensing Turn On/Off with Remote Out
  • Adjustable Output Levels
  • Synchronous Remote Output for Controlling Aftermarket Equipment



No. of Channels 12
Input Level 50mV ~ 35V
Gain Range 14dB ~ 0dB
Power Supply PWM Switching Power Regulator
Working Voltage Range 8.2 ~ 16V DC
Standby Current <8 MA
Working Current <0.2 A
Recommended Fuse Values 1AMP
Maximum Output Level >4.8V RMS (1KHz 1% THD) Each Channel
S/N Ratio >105dB
THD + N <0.05% (1KHz, Referred to 3V Output)


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