MODEL: M1u Product id:M1UD13 M1u OWNER’S MANUAL
Foreword We congratulate you with your decision to purchase our reveered niche amplifiers. Every product developed by implements the keystones of our company philosophy; Optimum sound reproduction within its range, etter ass & high performance. These elements will enable you to reproduce music the way you prefer. Our amplifiers features a unique design, a variety of applications & highest possible effiency combined with a clean analytical sound.
1. Design features Circuit Configuration Frequency Response Signal to Noise Ratio Input Sensitivity Input Level Selector Crossover Low Pass Crossover Range Subsonic Crossover Range Bass Boost Bass Boost frequency Phase Remote Control w/clip indicator Damping Factor Power Terminal gauge Fuse Rating M1u HI-EF Class D Mono : 15 Hz ~ 250 Hz : 100dB : 6V ~ 0.
2. Panel layout M1u SWEET LIKE DANISH INPUT Signal input from the head unit. A minimum level input of 0.2V is essential for correct operation. BASS BOOST Variable bass boost with 0-9dB @ 45Hz. POWER & PROTECTION INDICATOR Power LED, Blue-lit shows correct operation. Protect LED, Red-lit shows general malfunction, faulty connection or thermal protection. LOW PASS FILTER (35Hz ~ 250Hz @ 24dB/Oct) Adjusts the cut off point for the low pass filter within the filter’s range. GAIN (6V ~ 0.
2. Panel layout M1u +12V (POWER CONNECTION) For connection to the positive terminal of the battery (+12V). For optimum performance 0 gauge cable is required. GND (GROUND CONNECTION) For connection to the chassis’ ground. For optimum performance 0 gauge cable is required, all of them using common ground connected with cable of equal length. REM (REMOTE) Connect to switched +12V from the head unit. CAUTION Installation of the amplifier should be done in the folling steps: 1.
3. Installation 3.1 Installation considerations If you choose to install the amplifier by yourself, please read the owner’s manual carefully. Before you start your installation, please take all steps into consideration. If in doubt, please go to www.b2audio.com for authorized distributors / dealers that will be able to configure your set up & ensure warranty of your amplifier. Preparation Disconnect the negative (-) battery cable before mounting or making any connection.
3.3 Wiring layout Head unit +12V, GND, REM connection chart Remote turn on M1u * * Keep GROUND of equal length. This drawing is for illustration purposes only! 850A (External fuses) We recommend using 12 AWG speaker cables to obtain increased performance. Run 12 AWG speaker cables from your speakers to the amplifier’s mounting location Keep the speaker cables seperate from the power cables and and the amplifier’s input cables. Use grommets where the cables have to penetrate the vehichle’s chassis.
3.31 Speaker wiring diagram M1u SWEET LIKE DANISH CAUTION The minimum impedance as 1 unit is 1 . In a daisy chain configuration the minimum impedance is 2 . Speaker Impedance 1~8 ohms Head unit MASTER AMPLIFIER SWEET LIKE DANISH Daisy chain connection allows linking of 2 M1u amplifiers to work as 1 single amplifier. Please read the following connection diagram cautiosly to ensure the correct connection. Step 1.
4. Troubleshooting The protection circuits of the amplifier prevents severe damages from faulty conditions & improper use. The protection indicatior will switch on due to short circuit connection & speaker overload, thus the amplifier will be turned off. Prior to inspecting the occurred problem, turn all levels down & all power off, then carefully check the installation for wiring mistakes, shorts or faulty ground (GND).
