Standard Horizon BMF600D, BMF1000D Preamp Settings, Bridge Settings and Wiring Bridge Wiring

Page 6

BRIDGING CIRCUIT (Invert output)

The bridging module can only be used when two pairs of either BMF600D or BMF1000D are used. This allows for the two amplifiers to be run in series to achieve double the output. However, this does change the minimum impedance required to 2ohms. Bridging the amplifiers should only be done if the proper impedance cannot be achieved with the amplifiers separated.

It is very important to set the Master/Slave control on the amplifier whether you are using the bridging module or not. If the settings are in the wrong position, the amplifier may not work.

There are three settings for this control: Master 0, Master 180, Slave. Use the following to determine what position to set your amplifier in. For further reference, please review the drawings following.

Master 0: this setting will maintain the same phase as the signal applied to it.

1.Use this setting if the amplifier is not bridged with another amplifier.

2.When bridging the amplifiers, use this setting only on the amplifier that is connected to the head unit. Master 180: this setting will reverse the phase 180degrees of the signal input into the amplifier.

1.Use this setting if the amplifier is not bridged with another amplifier and the subwoofer(s) are out of phase with the satellite speakers in the vehicle.

2.When bridging the amplifiers, use this setting only on the amplifier that is connected to the head unit. Only apply this if the subwoofer(s) are out of phase with the satellite speakers in the vehicle.

Slave: this setting limits the controls of the secondary amplifier in a bridged pair.

1.Use this setting only on the second amplifier in a bridged pair. All crossover, subsonic and level controls of this amplifier will be removed. The amplifier set on one of the two Master settings will then control each of the preamp functions for both amplifiers.

HOW TO BRIDGE MY AMPLIFIERS

Bridging the two like amplifiers together is fairly easy. Please follow the following diagram to assure proper connections. If you are experiencing any difficulties, please contact Crossfire's technical department at 562-483-8111.

"Preamp Settings"

Must be set to

 

Master 0 or 180

Bridge Settings and Wiring

"Bridge Wiring"

SUB LEVEL

CONTROL

From

MASTER

MASTER

 

Amplifier

Amplifier

Source

 

 

 

DOWN UP

SLAVE

Amplifier

LOW IN

LINE OUT

 

MASTER

 

HPF FULL LPF

 

OFF ON SLAVE 0 180

 

 

R

L

CROSS

LEVEL

REMOTE

SUB

50

250

 

OVER

 

 

SONIC

LPF

LOW IN

LINE OUT

 

 

 

MASTER

INVERT

 

HPF FULL LPF

OFF

ON

SLAVE 0

180

 

R

 

 

 

 

 

IN

L

CROSS LEVEL

REMOTE SUB

50 250

OUT

 

OVER

SONIC

LPF

 

Do not use

Must be set

this section

to Slave

INVERT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR

 

 

 

 

 

 

 

IN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PRT

 

 

 

 

 

 

 

OUT

 

 

-

+

-

+

 

 

 

 

 

 

 

 

 

 

 

+12

REM

GND

 

 

 

 

 

 

 

 

 

 

SPEAKER

 

 

POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SLAVE

All P reamp functions of

 

 

 

 

 

 

 

 

 

 

 

Amplifier

 

 

 

 

 

 

 

 

 

 

 

 

the slave amplifier are

 

 

 

 

 

 

 

 

 

 

 

 

non-functional. T

he

Master

 

 

 

 

 

 

 

 

 

PWR

 

 

amplifier controls all

level

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and crossover

functions.

 

 

 

 

 

 

 

 

 

PRT

 

 

 

 

 

 

 

 

 

 

-

+

-

+

+12

REM

GND

 

 

 

 

 

 

 

 

 

 

SPEAKER

 

 

POWER

 

 

 

Speaker +

 

 

 

 

 

 

 

 

It is very important that

 

 

Speaker

-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a negative of each amplifier

 

 

 

 

 

 

 

 

 

 

 

 

is connected as shown

6

Image 6
Contents Both diagrams, Amplifier sees a 2 ohm load BMF Class D AmplifiersrsPower Connections Impedance EquationsGround Power Wire & FuseModel Wire Fuse DirectionsWiring Connecting the WiresSignal Inputs Speaker OutputsSubsonic Filter Peamp FeaturesLowpass Crossover Remote Level ControlHOW to Bridge MY Amplifiers Preamp SettingsBridge Settings and Wiring Bridge Wiring Bridging Circuit Invert outputExample 1 Two way system Power and ProtectionSystem Examples Gain Control

BMF600D, BMF1000D specifications

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