Ma Audio HK-2000D Manual - page 4
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Speaker CONNECTIONS
Single Amp Configuration
WIRING SUBWOOFERS (Single Amp)
When using a single amplifier to power one subwoofer, the Positive and negative terminal of the
Subwoofers voice coil is connected the positive and negative terminal of the Amplifier.
Dual Amp Configuration
When using a dual amp configuration, the master amplifier has total control over the slave
amplifier. The slave amplifier controls are not used when in Dual Amp Configuration.
WIRING SUBWOOFERS (Dual Amps)
When using dual amplifiers to power one subwoofer, the Positive terminal of the Subwoofers
voice coil is connected the positive terminal of the MASTER Amplifier and the Negative terminal
of the Subwoofers voice coil is connected to Positive terminal on the SLAVE Amplifier. This
procedure will allow the total power of both amplifiers to be added together and act like a single
powerful amplifier. Please check that your subwoofer power handling capabilities are not
exceeded when hooking two amplifiers to it.
CAUTION
Always check your speaker load with a multi-meter before hooking up to the amplifier.
These digital amplifiers are only 1 ohm stable. Any Impedance (load) smaller than 1 ohm will
damage the amplifier. Such Damage is not covered under warranty either, so pay strict attention to
what connections are made to the amplifier.
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TROUBLE SHOOTING
SYMPTOM
NO SOUND.
CHECK POINT
Is the power LED illuminated?
CURE
1. Check fuses in amplifier.
2. Be sure Turn-on lead is connected.
3. Check signal leads.
4. Check gain control.
5. Check Tuner/Deck volume level.
6. Clean contacts on fuse holders.
CHECK POINT
Is the Overload LED illuminated?
CURE
Check for speaker short or amplifier overheating.
SYMPTOM
AMP NOT SWITCHING ON.
CHECK POINT
No power to power wire.
CURE
Repair power wire or connections.
Check point
No power to remote wire with Head Unit on.
CURE
Check connections to radio.
Check point
Fuse broken.
CURE
Replace Fuse.
SYMPTOM
NO SOUND IN ONE CHANNEL.
CHECK POINT
Check Speaker Leads.
CURE
Inspect for short circuit .
Check for open Connection.
CURE
Check Speaker Leads Reverse Left and
Right RCA inputs to determine if it is
occurring before the amp.