MODEL: SLD5k Product id:sld5k15d
SLD5k
OWNER’S MANUAL
Introduction
We thank you for purchasing our amplifiers. Your decision to be part of something different is what we strive for.
Our products reflects who we are, going to the extent to deliver you our finest comes natural.
to upgrade the stock electrical system. Ensure the system is in accordance with the full performance of the amplifier.
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Better Bass
Better Bass is our philosophy of adding something extra.
Keep in mind that continious exposure to SPL above 100 dB can seriously
damage your hearing. Today’s high power auto sound systems can easily
produce SPL over 140 dB. Enjoy your music with sense.
Table of contents
Design features 3 speaker wiring - single amp 8
Panel layout 4-5 strapped control panel setting 1 8
* strapping / linking steps 9
Installation 6
strapped control panel setting 2 10
*Preparations 6 * Master / slave 10
* strapping / linking steps 10
*Power connectors 6
*remote & RCA input 6
troubleshooting 11
wiring layout 7
2
Design features
SLD5k
Circuit Configuration: HI-EF Class D
Frequency Response: 10 Hz ~ 350 Hz
Signal to Noise Ratio: > 100 dB
Input Sensitivity: 6 V ~ 0.2 V
Crossover Circuit: 24 dB / Octave
Low Pass Crossover: 35 Hz ~ 250 Hz
Subsonic Crossover: 10 - 50 Hz
Phase shift: 0 - 180 degrees
Damping Factor: > 350
Bass Boost Frequency: 30 Hz ~ 90 Hz
Bass Boost: 0 ~ 9 db
Remote Control: Included
Power Terminal Gauge: 0 GA x 2
Fuse Rating: 500A
Dimensions: 9.84’’ x 2.28’’ x 25.59’’ / 250 mm x 58 mm x 650 mm
Specifications
Continious output power (RMS)
sld5kl
(12 V < 1% THD) (14.4 V <1% THD) (14,4 V < 1% THD) (16 V < 1% THD) (18 V < 1% THD)
Power @ 4 Ω: 750 W x 1 750 w x 1* 1250 W x 1 1300 W x 1 1325 W x 1
Power @ 2 Ω: 1500 W x 1 1500 w x 1* 2500 W x 1 2600 W x 1 2650 w x 1
Power @ 1 Ω: 2500 W x 1 3000 w x 1* 5000 W x 1 5200 W x 1 5300 w x 1
Description of specifications
Stable impedance load of the SLD5K is 1 Ohm.
*SLD5KL is a regulated version of the SLD5K, power output is 3000 W at 14.4 V, though at 18 V performance is the same as SLD5K
* Speaker overload
* Short circuit
* Input Voltage - RCA & Power Supply
Operational voltage: 10 V ~18 V. Operational voltage will also be affected by the load of the amplifier
3
Panel layout
SLD5k
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*If unstrapped, set as Master.
(Unpressed )
INPUT BASS BOOST
RCA signal input for Left & Right channel. Variable signal boost of the BASS FREQ chosen
A minimum of 0.2 v input signal is required for correct with 0 dB ~ 9 dB.
operation.
POWER & PROTECTION INDICATOR LPF (LOW PASS FILTER 35 Hz ~250 Hz, 24 dB/oct)
Power LED, blue light shows correct operation, Adjusts the cut off point for the low pass crossover
Protect LED, red light shows general malfunction, faulty at the frequency chosen.
connection or thermal protection.
REMOTE LEVEL CONTROL PORT
GAIN (6V~0.2v) Connection of external signal level control.
Adjusts signal input voltage from the source CAUTION, the amplifier needs to be gained in accordance
to match the amplifiers input stage. with the remote to avoid excessive signal boost.
0.2 V ~ 6 V is the operational voltage.
Voltages beyond may cause damage. MASTER / SLAVE
Enables daisy chain (strapped mode) of 2 amplifiers.
SUBSONIC Minimum warrantied impedance is 2 ohm.
Variable subsonic setting from 10 Hz to 50 Hz. See page 8 for complete instructions on how to
It is highly recommended to set it according to the tuning run the amplifiers in linked mode.
of your subwoofers to avoid unnecessary strain to
your sound system. speaker (speaker output)
Connects to the speaker(s) leads. Ensure polarity is correct
BASS FREQ (30 Hz ~90 Hz) on the speaker and connect to the corresponding
Adjustable bass boost frequency between 30 Hz ~ 90 Hz. output. Minimum impedance is 1 ohm.
Use with caution, boosting the wrong frequency may conflict In STRAPPED mode, minimum load is 2 ohm.
with the performance of your enclosure design. Use high quality cable of at least 12 Ga.
4
Panel layout
Head unit
sld5k
GND B+ B+ REM GND
POWER POWER
GROUND*
* Keep ground as short as possible, no longer
than 20” (50 cm).
500A (External fuse)
BATTERY
GND (GROUND CONNECTION) + 12V (POWER CONNECTION)
Connects to the vehicle’s chassis. Connects to the positive terminal of the battery.
Keep as short as possible (< 20” / 50 cm) For specified performance 0 Ga cable is required.
Use minimum 0 Ga cable for optimal conditions. Fuses shall be placed within 8” / 20 cm of the battery.
The HI-EF class D design allows for higher output
REM (REMOTE) power, even at low voltage applications.
Connects to switched +12V from the headunit. This sets high requirements to the battery system.
Choose batteries with high CCA ratio.
speaker (speaker output)
Connects to the speaker(s) leads. Ensure polarity is correct
on the speaker and connect to the corresponding
output. NOTE, terminal is internally bridged and minimum
impedance is 1 ohm.
In STRAPPED mode, minimum load is 2 ohm.
Use high quality cable of at least 12 Ga.
CAUTION
Installation of the amplifier shall be done in the following steps:
1. Connect the +12V wire, keep in mind this wire has to be fused at the battery as well. 2. Ensure the ground is
appropriate, then connect it to the amplifier. 3. Connect the switched remote. 4. Reattach negative wire (ground)
to the battery. 5. Operation over 18 V will cause the amplifier to go into protect & can void the warranty!
5
Installation
Installation considerations
If you choose to install the amplifier by yourself, please read the entire 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 the warranty of your amplifier.
Preparation
Disconnect the negative (-) battery cable before mounting or making any connection.
Check the battery & alternator ground (-) connection. Make sure they are properly connected/dimensioned
& free of corrosion. Before selecting a mounting location for the amplifier, please take cooling & safety
into consideration. Avoid areas with excessive vibration & up side down installation!
In order to avoid excessive heat from the amplifier, it is recommended to find a mounting location
that allows for vertical positioning of the heatsink fins. For safety purposes, install the amplifier in a dry and
well ventilated location and make sure no cables or other harness of the car is interfaced with the mounting
location or will present a hazard to the car’s cable, control cables, fuel lines/tanks, hydraulic lines or other
components of the vechicle. Route the RCA cables away from high current wires, if possible run RCA, Power and Speaker
cables individually and with a good distance from each other.
Power connectors
12V (Power connection)
Before mounting the amplifier, disconnect the negative (-) wire from the battery to protect any accidental
damage to the amplifier or the audio system. The amplifier is equipped with dual 0 AWG power & ground
terminals. It is crucial that all terminals are used with the adequate cable to ensure correct operation.
Connect the power cables to the power terminal labeled as +12V.
The amplifier is not equipped with fuses, so external fuses are required at both the battery and the amplifer.
Connect one end of the fuse holder to the power cable and the other end of the fuse holder to the positive
battery terminal within 8’’ /20 cm of the same cable. The same shall be done at the other end of the cable that
connects to the amplifier. The fuse locations will protect the system and the vehicle against the possibility of
a short circuit in the power cable. Make sure that the fuses and the fuse holder is according to the system requirements.
GND (Ground connection)
Locate a secure grounding connection as close as possible to the amplifier.
Make sure the location is clean and provides a direct electrical connection to the chassis of the vehicle.
Connect one end of an equal sized cable as the positive cable to the location of ground.
It is important that the ground cable is as short as possible, but no longer than 20’’ / 50 cm at maximum.
Run one end of the cable to the grounding point. Run the other end of the cable to the mounting location.
Connect the ground cable to the terminals labeled as GND.
REM ( REMOTE CONNECTION )
Run a remote turn on cable from the switched +12V source.
This may be a toggle switch, a relay, the source unit's remote ouput cable or power antenna trigger cable.
Connect the remote turn on cable to the power terminal labeled as REM.
INPUT (RCA CABLE)
Run the RCA cables away from the high current cables / speaker cables and connect to the amplifier.
Use high qualtity cables with a secure grounding point to avoid amplifier malfunction and / or alternator whine.
6
wiring layout
Head unit
sld5k
GND B+ B+ REM GND
POWER POWER
GROUND*
* Keep ground as short as possible, no longer
than 20” (50 cm).
500A (External fuse)
BATTERY
We recommend to use minumum12 Ga speaker cables to acquire the intended performance.
Run the speaker cables from your speakers to the amplifier’s mounting location.
Ensure these are ran separately and away from high current cables and if possible the RCA cables as well.
In all cases where cables are penetrating the vechile’s chassis use grommets to protect the cable.
Connect the speaker wires according to the terminals on the speaker(s). Strip 3/8’’ / 1 cm of insulation of the end of
each cable and twist the cable strands together tightly. Make sure there are no stray strands that could touch other
cables or terminals as it can cause a short circut.
Crimp spade plugs over the end of the cable or tin the ends with solder to provide a solid terminal.
Connect the cable ends to the amplifier as shown in the diagram. Note, the amplifier’s speaker terminals are
internally bridged.
5
Speaker Wiring Diagram - single amplifier
SLD5k
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*If unstrapped, set as Master.
(Unpressed )
Speaker impedance 1 Ohm ~ 8 Ohm
Loads under what is specified will cause excessive heat & the amplifier
will reach thermal at a faster rate & will eventually go into protect.
Impedance load under 1 ohm is not warranted!
Strapped control panel setting Speaker Impedance 1~ 8 ohm
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*Leave Master unpressed
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*Set slave as slave, button pushed in.
HEAD UNIT
8
strapped Speaker Wiring Diagram
master
SLD5k
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
Linking or strapping makes 2 amplifiers work as a single amplifier. *Leave Master unpressed
This configuration will near double the rated output power.
Follow the instructions carefully as it can cause harm to your system if done incorrect.
Speaker impedance 2 Ohm ~ 16 Ohm
Loads under what is specified will cause excessive heat & the amplifier
will reach thermal at a faster rate & will eventually go into protect.
Strapped impedance load under 2 ohm is not warranted!
Speaker Impedance 2~ 16 ohm
slave
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*Press the switch on the slave for
To link the master and slave amplifier speaker connection follow the steps below. strapped mode
step 1.
Run the positive (+) speaker cable from the master amplifier’s speaker output to the
positive terminal (+) of the subwoofer.
step 2.
Run the positive (+) speaker cable from the slave amplifier’s speaker output to the
negative terminal (-) of the subwoofer.
Step 3.
Connect both amplifiers together by running a cable from negative speaker output on master amplifier
to negative speaker output on slave amplifier. Use minimum 8 GA cable for connecting the amplifiers.
9
Strapped control panel setting steps
SLD5k
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*Leave Master unpressed
REMOTE BASS
GAIN SUBSONIC BOOST FREQ. LPF PHASE MASTER
POWER
0.2V 10Hz 50Hz 0dB 9dB 30Hz 90Hz 35Hz 250Hz 0 180 SLAVE PROTECT
6V
SPEAKER
L R OUTPUT INPUT
INPUT MASTER SLAVE
*Set slave as slave, button pushed in.
HEAD UNIT
To link the master and slave amplifier RCA connection follow the steps below.
Keep in mind amplifiers needs to be switched off, linking the amplifiers when switched on may cause harm and can void your warranty!
Step 1. Connect RCA from Head Unit / output source into master amplifier RCA input.
If only one output is available, then use a Y-split to connect both L & R.
Step 2. Locate the Master / Slave switch on the right side of the control panel on the Master amplifier.
Set the switch to Master position (unpressed).
step 3. Connect a single RCA from the RCA OUT on the master amplifier.
Step 4. Locate the Master / Slave switch on the right side of the control panel on the Slave amplifier.
Set the switch to Slave position (pressed).
Step 5. Connect the single RCA cable from the Master amplifier’s Rca out to the slave amplifier’s single RCA IN.
10
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). If the amplifier shuts down due to excessive heat, the protection indicator will
light up; please allow time for the unit to be cooled off. Before removing your amplifier, refer to the list below and follow the
suggested procedures step by step. If not at ease, contact an authorized installer which can assist you.
AMPLIFIER DOESN’T TURN ON
Measure voltage on the +12V terminal.
Ensure that the remote terminal has min. 13.8 V DC remote connection.
Recheck the ground (GND) connection. Inspect the in-line fuses.
Check the protection LED is not on.
.
PROTECTION LED IS LIT ONCE THE AMPLIFIER IS TURNED ON
Check shorts on speaker wires & the connected load / impedance. Check power cables & GND.
Disconnect the speaker cables and reset the amplifier.
High / Low voltage, operation voltage is 10 V ~ 18 V+. Voltages below / beyond this will cause the amplifier to go into protect.
FUSE BLOWING
Measure the speaker impedance & that it is in accordance with the configuration.
Inspect the power cable for shorts along with vehicle chassis.
OVERHEATING
Measure the speaker impedance & that it is in accordance with the configuration.
Check speaker shorts.
Ensure airflow around the amplifier is sufficient & that the amplifier is not installed in
areas of excessive vibration & upside down!
AUDIO OUTPUT INSUFFICIENT - DISTORTED SOUND
Ensure that the gain settings on the amplifier is matched with the output level of the head unit.
Adjust the head unit volume.
Check speaker shorts.
Adjust the crossover frequencies in accordance with the setup.
If no output at all, check the RCA connections & the cable itself.
TURN ON THUMP
Disconnect the signal input to the amplifier, then turn it on and off.
a) If the noise is cancelled, then connect a delay turn on module on the REM wire running from
the source unit to the amplifier.
b) Use another 12V source for REM lead to the amplifier. If the noise is cancelled, use a relay
to isolate the amplifier from the turn on thump.
HIGH HISS-ENGINE NOISE IN SPEAKERS
Ensure that all signal transferring wires (RCA, speaker cables etc) are kept seperately / away from
the power and the ground wires.
Bypass all electrical components between the Head unit and the amplifier.
Connect the Head unit directly to the amplifier’s input. If the noise is eliminated, the unit bypassed
is the one causing the noise.
Remove the existing ground wires for all electrical components installed. Ensure that the point of
ground is 100% metal which has been grinded free of rust, paint etc.
Replace the ground cable from the OEM battery / alternator and ensure it is grounded accordingly.
Test the battery and alternator load (can be carried out by a professional).
Ensure that the vehichle’s electrical system is in a good condition, this includes distributor, alternator,
spark plugs / wires, voltage regulators etc.
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11
sweet like danish
LIMITED WARRANTY INFORMATION
B2 audio offers a limited warranty under the following terms:
The product is to be free of defects in material & workmanship under normal use for a period of 1 year from the date of the original purchase, when installed by
an authorized dealer. Items not installed by authorized dealers will be warrantied for 30 days from the original purchase. Original sales receips must be accompanied
with all returns.The warranty applies to the original purchaser of the product & it being sold by authorized B2 audio dealers.
The warranty does not cover: 1. Damage caused by accident, abuse, misuse, improper operation, water / solvents & shipping.
2. Product modification, neglect, failure to follow installation instructions & misrepresentation by the seller.
3. Products used for competition purposes or are of such a charachter 4. Any product that has been opened.
5. Products that has had the serial number defaced, altered or removed.
6. The cost of shipping the product back for repair to an authorized repair centre & cost of return of non-defective items.
