Standard Horizon Car Amplifier BMF1000D User Manual

BMF CLASS D AMPLIFIERS  
FEATURES  
SPECIFICATIONS  
BMF1000D  
Class "D" Technology  
MODEL:  
BMF600D  
Fully 1 Ohm Stable Operation  
Military Spec Audiophile Grade Components  
High Efficiency PWM Power Supply  
-Multi-stranded power torroid  
-Oversized torroidial core  
MOSFET Input and Output Transistors  
Oversized Capacitor Banks  
Discrete Mount Power and Speaker Terminals  
Variable Lowpass Electronic Crossover  
Variable Subsonic Filter  
RMS Power / 4 ohms @ 0.08% T.H.D.  
2 ohms @ 0.4% T.H.D.  
1 ohm @ 1 % T.H.D.  
Efficiency / Typical  
Worst Case  
150W x 1  
300W x 1  
600W x 1  
86%  
72%  
10Hz 250Hz  
>90dB  
250W x 1  
500W x 1  
1000W x 1  
86%  
72%  
10Hz 250Hz  
>90dB  
Bandwidth +3dB  
Signal To Noise  
Damping Factor  
200  
200  
Input Sensitivity  
240 mV 6V  
20K ohms  
120 Amp  
9.3W x 2.1H x 13L  
240mV 6V  
20k ohms  
60 Am p  
9.3W x 2.1H x  
Input Impedance  
Circuit Breaker / fuse  
Dimensions  
RCA Preamp Output  
10.5L  
-Variable HP/LP/Full crossover  
Built in Bridging Module  
-Master / Slave Selector  
-0/180 Phase Selector  
5 Way Protection Circuitry  
Soft Remote On/Off Circuitry  
Digital Subwoofer Level Control  
Two Year Limited Warranty  
CROSSOVER  
Low Pass  
X-Over Slope  
Variable Subsonic Filter  
Preamp Crossover  
Preamp output  
Variable 50 250Hz  
12dB  
Variable 20 - 50Hz @ 12dB  
Variable 50 250Hz  
All specifications are with 12.5 volts DC. Typical output with 14.4 volts DC is 20% higher.  
IMPORTANT  
Plleeaassee rreeaadd aallll iinnssttrruuccttiioonnss bbeeffoorree iinnssttaalllaattiioonn!!  
The quality of installation may affect the performance and reliability of your Crossfire product. If you have any doubts or questions regarding installation, you may  
wish to contact your authorized Crossfire dealer. Remember to follow all wire and fuse requirements suggested in this manual. Warranty may void if proper  
installation technique is not used.  
OPERATION  
Both the Crossfire BMF1000D and BMF600D are single channel, dedicated subwoofer amplifiers. Unlike other Crossfire BMF amplifiers, both these amplifiers operate  
as a single channel, therefore one amplifier cannot be bridged by itself. Do not be fooled by the two sets of speaker outputs. Two outputs are provided strictly for  
convenience and are paralleled internally on the circuit board of the amplifier. This means that if both outputs are used with one driver each, the amplifier sees the  
same load as if the same two drivers are connected to only one output terminal.  
In both diagrams, the  
amplifier sees a 2 ohm load  
PWR  
PRT  
PWR  
PRT  
+
+12  
REM  
GND  
+
+12  
REM  
GND  
+
+
-
-
-
-
POWER  
POWER  
SPEAKER  
SPEAKER  
-
-
-
-
+
+
+
+
BMF D AMPS  
4 ohm subwoofer  
4 ohm subwoofer  
4 ohm subwoofer  
4 ohm subwoofer  
 
POWER WIRE & FUSE  
The proper wire size is very important for an amplifier capable of these power levels. The following are the recommended fuse values and wire gauge for lengths up to  
20ft.  
Model  
BMF1000D  
BMF600D  
Wire  
4awg.  
8awg.  
Fuse  
100amp  
60amp  
POWER  
Power wire needs be connected directly to the battery using the wire requirements listed above. Never use the fuse box or any other wire as a source for the power for  
an amplifier. Before you start, choose the easiest path to run the wire from the battery to the amplifier. Generally, try to keep the power wire on the driver's side of the  
vehicle (See Signal Inputs & Outputs for explanation). Use the following rules for running the power cable through the vehicle:  
1. Use grommets when passing the power wire through any metal wall of the vehicle.  
2. Avoid sharp corners or sharp body parts that may easily cut through the insulation on the wire.  
3. Avoid running the power wire over engine components and near heater cores.  
4. Avoid the gas, brake and clutch pedals and their mechanisms.  
5. Use an inline fuse to eliminate the risk of a fire caused by a short in your power wire.  
6. Connect the fuse holder as close to the battery positive as possible.  
Once the wire has been run, connect the wire to the battery terminal. As a precaution, leave the fuse out until all other wire connections are made.  
GROUND  
The wire used for ground should be of the same gauge as the power wire. Just make sure that you choose a different color (generally black) so that you don't reverse  
the polarity at the amplifier terminals. Follow the rules below for connecting the ground wire properly:  
1. Avoid using seat bolts, seatbelt bolts, and fender wells for ground.  
2. Choose a metal area close to the amplifier that appears to be a good of ground, such as the floor.  
3. Investigate the area you wish to use for electrical wires, vacuum lines, and brake or fuel lines.  
Please note that if you are installing multiple high power amplifiers into the vehicle, you must upgrade the ground strap from the battery to the frame and the frame  
to the body.  
Directions:  
1. Find a nut and bolt to fit the ring terminal you have chosen.  
2. Drill a hole just large enough for the bolt to fit through at the source of ground.  
3. Use either a wire brush or sandpaper to eliminate unwanted paint around the hole you have drilled as to supply a better contact for your ground.  
4. Terminate the ground wire to the ring terminal and attach it to the bare metal using the nut and bolt. It is very important for this connection to be solid.  
5. Spread silicon over the screw and bare metal to prevent rust and possible water leaks.  
REMOTE TURN-ON  
In between the power and ground of the amplifier is a remote turn-on terminal. This terminal must be connected to a switched +12 volt source to make the amplifier  
operational. Typically, remote turn-on leads are provided at the head unit that will turn on and off the amplifier in correspondence with the source. This means you  
will most likely have to remove the head unit from the dash to find the source +12V output wire.  
Once the head unit is pulled from the dash, locate the remote turn on wire. The majority of vehicles will be using an after market head unit when using an amplifier.  
These after market head units generally use a blue or a blue with white wire as the remote turn on for the amplifiers. However, when using a factory radio, the power  
antenna wire should be as a turn on lead if applicable (colors will vary from make/model). Only if a lead is not available at the source, a switched +12 volt supply, such  
as a toggle switch, should be applied.  
Use a minimum of 18-gauge wire, preferably blue, to connect the amplifier to the head unit. If possible, route this wire along side of the power wire using the same  
precautions. Connect the remote output of the head unit to the wire using a barrel connector or a mating terminal as required by the source unit. You can solder  
these wires together, but be sure to use heat-shrink over the connection. Do not place the radio back into the dash yet.  
3
 
SPEAKER OUTPUTS  
WIRING  
Due to the power output and the low frequency bandwidth of the Class "D" amplifiers, Crossfire recommends using a minimum of high quality 12 gauge speaker wire.  
Consult your local dealer for their recommendations.  
As with the power wires, use caution around sharp corners or body parts that may easily cut through the insulation on the wire. To connect the wire to the speaker,  
strip off approximately ½" (12mm) of the insulation and terminate the wires using insulated speaker terminals (not supplied) or by soldering the connection to the  
loudspeaker. Be sure that the polarity at the loudspeaker is correct.  
CONNECTING THE WIRES  
At this point, the power, ground, remote and speaker wires should be run to the general location of where the amplifier is to be mounted. If the wires are to be hidden  
under the carpet, you now need to cut a slit for them to come through. To do this, place the amplifier in the location it is to be mounted to verify where the cuts need  
to be made. Make sure that there will be not be a conflict with the mounting of the amplifier and the wires. Pull the wires through the slit to the terminals leaving  
approximately 6" (150mm) of slack and cut the wires to an equal length. Strip off approximately ½" (12mm) of insulation from each wire. Insert the wires directly into  
the terminal and tighten the set screw using a 3mm allen key. Make sure you have the polarity correct on both the power wires and the speaker wires. Check your  
connections by giving the wires a slight tug.  
SIGNAL INPUTS  
Getting a clear signal from the head unit to the amplifier is very important. To achieve this, the proper signal cables must be used. Estimate the length of the cables  
necessary. Take note that the cable manufacturers will probably not be the exact length necessary for your vehicle. If you are between sizes, purchase the longer cable.  
You can always hide the extra wire.  
Be aware off the differences in cable. Better RCA's usually have multiple layers of shielding and/or twisted pair wiring for better noise rejection. Consult your local  
dealer for their recommendations.  
LINE LEVEL INPUTS  
Car environments are notorious for poorly insulated wires. This means that hiss, engine noise, and fan noise can easily be picked up through RCA cables if ran  
incorrectly. To avoid picking up noise, run the RCA's away from large wire looms and electric fans if possible. And always make sure to position your patch cables away  
from the power wire, preferably on the opposite side of the vehicle. As with the power wire, use caution around sharp corners of body parts that may easily cut  
through the cables.  
Located on the opposite side of the power terminals are three sets of line level (RCA) receptacles. Marked "LOW IN", these receptacles accept signal from the outputs of  
the source unit via RCA patch cables. When connecting the signal cables, be sure the balance (left and right) stays consistent between the amplifier and head unit. The  
cables should be marked for easy installation: red is right and black or white is left.  
Once you have finished connecting the signal cables to the source unit, slide the head unit back into the dash location. Make sure that the head unit is in securely.  
4
 
PEAMP FEATTURES  
The Crossfire BMF600D and BMF1000D have a tremendously powerful preamp section located on the panel opposite the power terminals. Included in this preamp  
section are Lowpass Crossover for the amplifier, a switchable/variable Subsonic Filter, Preamp Output with Variable Crossover, a Digital Remote Level Control, and a built  
in Bridging Module. These features can be used to improve your system quality an as well as make the amplifiers easier to use on a day to day basis. Please read the  
following instructions carefully.  
Line  
level  
inputs  
Gain  
control  
Subsonic  
Filter  
Bridging  
circuit  
INVERT  
IN  
MASTER  
180  
LOW IN  
R
LINE OUT  
HPF FULL LPF  
OFF ON SLAVE  
0
OUT  
SUB  
SONIC  
50 250  
LPF  
REMOTE  
CROSS  
OVER  
LEVEL  
L
Preamp  
output  
w/crossover  
Remote  
level  
control  
recepticle  
Lowpass  
crossover  
LOWPASS CROSSOVER  
Locate the rotary dial marked LPF. This is the LowPass Filter (crossover) for the amplifier. The lowpass crossover points are fully variable from 50Hz to 250Hz making  
them ideal for subwoofers. Adjust this dial either to the recommended crossover frequency for the subwoofer or, more importantly, to a level where the subwoofer  
blends well with the midrange.  
*Note: Due to the limited frequency range of these Class D amplifiers, the crossover is always active.  
SUBSONIC FILTER  
The subsonic filter is used to reduce the amount of low frequency harmonics and/or subsonic noise picked up in audio systems. Both of these can be damaging to  
subwoofer and possibly the amplifier. As well, harmonics and subsonic noise can cause the amplifier to pull excess power from your electrical system.  
The subsonic filter on the BMF600D/1000D is selectable, ON/OFF, and variable from 20Hz to 50Hz. We make this switchable ON/OFF, for every system is different. For  
most people it is desirable to have the filter on. However, if you have an outright SPL system, it may be beneficial to remove the subsonic filter because harmonics can  
actually increase the sound pressure in many cases.  
So what frequency should you set the subsonic at? For most applications it is desirable to leave this between 20Hz and 30Hz. If you are using a ported enclosure  
designed for SPL, yet you are using the system on a daily basis, a higher filter frequency may be desired. This will allow the enclosure to be tuned higher and reduce the  
chance of the woofer to becoming non-linear and destroying itself.  
REMOTE LEVEL CONTROL  
Optional to the BMF600D/1000D is the digital remote level control. This level control can be mounted in an area within reach from the driver's seat and can be used to  
raise and lower the output level of the amplifier to the desired level. To connect this, run the provided cable from the remote to the amplifier. Plug the cable into the  
receptacle on the preamp section of the amplifier marked "REMOTE". The remote control receives power directly from the amplifier so no extra wires need to be  
connected.  
LINE LEVEL OUTPUTS  
The line level output is to be used as an easy solution to link multiple amplifiers together without the use of problematic RCA y-cables. The signal is buffered so that  
there is no loss. Please note that the signal passing through these outputs is not affected by the gain control of the amplifier.  
Included in the circuit of the line level output is an electronic crossover variable from 50Hz to 250Hz. This crossover is switchable from highpass, lowpass, and full range.  
This allows the stereo system to remain flexible enough to be arranged in a numerous amount of ways. Please refer to the diagrams at the end of this section for  
suggestions.  
5
 
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.  
Bridge Settings and Wiring  
Must be set to  
Master 0 or 180  
"Preamp Settings"  
"Bridge Wiring"  
M
A
STE  
pli  
R
M
A
STE  
pli  
R
From  
Source  
SUB LEVEL  
CONTROL  
A
m
f
i
e
r
A
m
f
ie  
r
DOWN  
UP  
INVERT  
MASTER  
180  
LOW IN  
LINE OUT  
HPF FULL LPF  
OFF ON SLAVE  
0
PWR  
PRT  
R
IN  
OUT  
L
SUB  
SONIC  
50 250  
LPF  
REMOTE  
CROSS  
OVER  
LEVEL  
+
+12  
REM  
GND  
+
-
-
POWER  
SPEAKER  
SLAVE  
plifier  
A
m
A
ll  
P
r
ea  
m
ave  
p
f
un  
c
t
ion  
s
of  
SLAVE  
mplifier  
th  
e
s
l
a
m
pli  
f
i
e
e
a
r
a
re  
aster  
A
non  
pli  
nd  
-f  
un  
c
t
ion  
on  
ss ve  
a
l
. T  
h
M
INVERT  
PWR  
MASTER  
LOW IN  
LINE OUT  
HPF FULL LPF  
OFF ON SLAVE 0 180  
a
m
f
ie  
r
c
tr  
ols  
ll  
l
ion  
evel  
R
IN  
a
c
r
o
o
r
f
un  
c
t
s
.
PRT  
+
+12  
REM  
POWER  
GND  
+
OUT  
-
-
L
SUB  
SONIC  
50 250  
LPF  
REMOTE  
CROSS  
OVER  
LEVEL  
SPEAKER  
S
p
eake  
r
+
It is very important that  
a negative of each amplifier  
is connected as shown  
Do not use  
this section  
Must be set  
to ave  
S
p
eake  
r
-
S
l
6
 
GAIN CONTROL  
Located in the preamp section on the side panel of the amplifier is the gain control (marked level). This control allows you to match the input level of the amplifier to  
the output level of your source unit or signal processor. Matching the input can be accomplished in three simple steps:  
1.Turn gain control all the way down.  
2.Turn on the source unit and adjust to 2/3 of max volume.  
3. Adjust the gain control until desired volume is achieved without audible distortion  
Remember that the gain control is not a volume knob. Ignoring the three steps above may leave you with damaged speakers and possibly a damaged amplifier.  
INVERT  
MASTER  
OFF ON SLAVE 0 180  
LOW IN  
LINE OUT  
HPF FULL LPF  
R
IN  
OUT  
L
SUB  
SONIC  
50 250  
LPF  
REMOTE  
CROSS  
OVER  
LEVEL  
Gain  
Control  
If you are bridging the two BMF600D or BMF1000D's together, only the gain control on the "Master" amplifier is adjustable. Use the same three steps to adjust the  
gain.  
POWER AND PRROTECCTION  
On the power and speaker panel of the amplifier are two LED's. These LED's indicate either power "on" or protection modes.  
Green LED: This LED illuminates when the amplifier is powered up indicating  
normal operation.  
Red LED: This LED illuminates when the amplifier goes into protection. This  
indicates a problem with the system in relation to the amplifier  
connected to it.  
SYSTEMM EXAMPLES  
Set crossover  
to FULL  
Subwoofer 1  
Example 1:Two way system  
Example 2: Multi subwoofer system  
Set crossover  
Set crossover  
MASTER  
180  
INVERT  
LOW IN  
R
LINE OUT  
HPF FULL LPF  
to FULL  
Subwoofer  
OFF ON SLAVE  
0
to HPF and adjust  
crossover point  
IN  
OUT  
SUB  
SONIC  
50 250  
LPF  
REMOTE  
L
CROSS  
OVER  
LEVEL  
Subwoofer 2  
INVERT  
LOW IN  
R
LINE OUT  
HPF FULL LPF  
MASTER  
180  
OFF ON SLAVE  
0
IN  
Set crossover  
to FULL  
OUT  
SUB  
SONIC  
50 250  
LPF  
REMOTE  
L
CROSS  
OVER  
LEVEL  
MASTER  
180  
INVERT  
LOW IN  
LINE OUT  
HPF FULL LPF  
Satellite 1  
Satellite 2  
OFF ON SLAVE  
0
R
IN  
OUT  
SUB  
SONIC  
50 250  
LPF  
REMOTE  
L
CROSS  
OVER  
LEVEL  
Subwoofer 3  
Source  
Unit  
HIGH IN  
LOW IN  
BOOST  
ON OFF  
CROSSOVER  
HPF FULL LPF  
LEVEL  
FREQ  
R
L
L
R
POWER  
50Hz 150Hz  
INVERT  
LOW IN  
LINE OUT  
HPF FULL LPF  
MASTER  
180  
OFF ON SLAVE  
0
R
IN  
Source  
Unit  
Set crossover  
to FULL  
OUT  
SUB  
SONIC  
50 250  
LPF  
REMOTE  
L
CROSS  
OVER  
LEVEL  
7
 

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