Circuit Diagram_Installtion_Specifications_Infinity BassLink X Powered Automotive Subwoofer
TUNING THE BASSLINK
> Make sure the head unit is off and its volume control is set to
minimum.
> On BassLink’s front panel, initially set all controls to their midpoint positions. On BassLink’s side panel, initially set PHASE to 0° and AUTO TURN-ON to AUTO.
> On BassLink’s front panel, initially set all controls to their midpoint positions. On BassLink’s side panel, initially set PHASE to 0° and AUTO TURN-ON to AUTO.
> Turn on the head unit and play a favorite music track that has
substantial bass. Set the volume control to 75 percent of the total output (approximately
3 o’clock on rotary controls).
> Adjust the GAIN control clockwise until the SERVO LED (on
BassLink’s side panel) begins to flash with each bass note but doesn’t stay lit
continuously.
> Listen to your system, making a mental note of the amount of upper
bass being reproduced.
> Switch the PHASE control to 180° and listen again for upper bass
content. There may be more upper bass, less upper bass, or no change at all.
The position that provides the most upper bass is correct, but choose either setting
according to your taste.
> Adjust the CROSSOVER control clockwise or counterclockwise until you
hear only low-frequency information. For example, you should NOT hear any
vocals coming from BassLink when seated in the normal listening position.
> Adjust the BASS-BOOST control clockwise or counterclockwise to
suit your taste.
> Recheck the SERVO LED to make sure it’s flashing in time with the
bass but is not lit continuously. If it is lit continuously, adjust the GAIN
control counterclockwise until the SERVO LED only flashes
In most cases, the above steps will provide satisfactory tuning.
However, the actual process may require several readjustments of each control, since
the settings will interact with each other. If necessary, consult your
authorized Infinity car audio dealer for help in tuning your system.
CONNECTIONS & INSTALLATION
* Use at least #12 AWG wire for the +BATT (+12 Vdc) and GND (ground)
connections. If needed, use at least a #20 AWG wire for the REM (remote)
connection.
* Route all power wires through a grommet in the vehicle’s firewall.
If a factory grommet is unavailable, install one.
* Connect a short GND wire from BassLink to the nearest bare metal
surface. For a good connection, scrape away paint from the metal surface and
use a screw with a lock (star) washer.
* Install a fuse holder with a 20 A fuse within 18" of the
battery + terminal.
The REM connection requires +5 to +12 Vdc signal for BassLink to
turn on remotely. Most head units with preamp outputs provide this remote
voltage signal. For speaker-level applications, a remote connection is not
required, since BassLink’s Auto Turn-On feature will sense voltage on the
speaker wires to automatically turn on BassLink. [To enable BassLink’s
AutoTurn-On feature, set AUTO TURN-ON to theAUTO position]
BassLink is equipped with four line-level (RCA) inputs and four
speaker-level inputs. Any combination of line-level and speaker-level inputs
may be used to provide nonfading bass when connected to a head unit with four
outputs.]
Five system applications
EXPLODED VIEW
In the event you receive a Basslink
subwoofer with the complaint: “The unit will not turn off, even when the audio
signal is removed, and the Remote power connection is switched off” (indicated
by the Basslink’s red LED remaining ON), perform the following modification
1 Set the unit on a padded surface and remove all external cables.
2 On the amplifier faceplate, remove only the (14) Phillips mounting screws as shown in Figure 1.
3 Remove the amplifier assembly from the enclosure. If the amp is turned around and supported correctly, no other connectors need to be unplugged.
4 Add these two components:
1.0 Meg ohm 1/8W resistor, Infinity part# 299-1M
0.01uf, 100v mylar capacitor, Infinity part# 140-PF2A103F
Solder these parts in parallel (See Figure below); and attach to original location shown (See Figure below) , which is in a narrow cavity between main power supply caps and transformer T101. There are two empty pads on the PCB for these parts with marked designators R272 and C273.
1 Set the unit on a padded surface and remove all external cables.
2 On the amplifier faceplate, remove only the (14) Phillips mounting screws as shown in Figure 1.
3 Remove the amplifier assembly from the enclosure. If the amp is turned around and supported correctly, no other connectors need to be unplugged.
4 Add these two components:
1.0 Meg ohm 1/8W resistor, Infinity part# 299-1M
0.01uf, 100v mylar capacitor, Infinity part# 140-PF2A103F
Solder these parts in parallel (See Figure below); and attach to original location shown (See Figure below) , which is in a narrow cavity between main power supply caps and transformer T101. There are two empty pads on the PCB for these parts with marked designators R272 and C273.
5 New gaskets must be added to the amplifier mating surface; two pairs are
required, four gaskets total: Infinity part# 723D150 and #723C150
6 Replace the amplifier assembly and tighten all mounting screws. Use caution; a hand tool is recommended to prevent stripping the threads in the enclosure.
7 Connect +12v to the unit and a signal cable, after the unit cycles ON, (red LED should be lit), remove the signal and remote connection only (or shut off the music source if using the Universal Interface). Unit should turn OFF after 3 - 10 minutes (as indicated by the red LED turning OFF).
6 Replace the amplifier assembly and tighten all mounting screws. Use caution; a hand tool is recommended to prevent stripping the threads in the enclosure.
7 Connect +12v to the unit and a signal cable, after the unit cycles ON, (red LED should be lit), remove the signal and remote connection only (or shut off the music source if using the Universal Interface). Unit should turn OFF after 3 - 10 minutes (as indicated by the red LED turning OFF).
CIRCUIT DIAGRAM
CLICK ON THE PICTURES TO MAGNIFY
SPECIFICATIONS
Amplifier Power: 200W RMS @10% THD 120W
RMS @1% THD
Frequency Response: 20Hz – 120Hz THD @ 30W 1.0%
Input Sensitivity: 50mV – 4V Line-Level Input 1V – 16V Universal Interface
Maximum Input Sensitivity 7mV Line-Level Input (Gain level @ Max) 120mV Universal Interface
Crossover Frequency: 50Hz – 120Hz
Crossover Slope: 12dB/octave
Bass Boost: –6 to +3 dB @ 40Hz
Signal-Noise Ratio 65dB (Wide band w/ 22K LPF)
Max Gain Level Noise 3.0 mV Basslink
(Level pot Max.) 1.8 mV Basslink w/ Remote Level Control 1.8 mV Basslink X
Max Gain Level Noise 2.0 mV Basslink
(Level pot Min.) 1.7 mV Basslink w/ Remote Level Control 1.7 mV Basslink X
Auto On/Off Time From 1 1/2 to 5 min. (depending on last input signal level)
Gain boost (min to max) 9.0 dB
Fuse: 25A Basslink
20A Basslink w/ Remote Level Control
20A Basslink X
Maximum Current Draw: 12A
Quiescent Current Draw: <800 mA
Protection Circuits:
Over/Under voltage 17.5, 8.5 VDC
Temperature 95 C
Short Circuit w/ 0.1 resistor
DC Offset Yes
Dimensions: 14-1/2" x 12-1/2" x 8-1/2" (L x W x H)
(369mm x 318mm x 216mm)
Weight 16 lbs./7.2kg
Frequency Response: 20Hz – 120Hz THD @ 30W 1.0%
Input Sensitivity: 50mV – 4V Line-Level Input 1V – 16V Universal Interface
Maximum Input Sensitivity 7mV Line-Level Input (Gain level @ Max) 120mV Universal Interface
Crossover Frequency: 50Hz – 120Hz
Crossover Slope: 12dB/octave
Bass Boost: –6 to +3 dB @ 40Hz
Signal-Noise Ratio 65dB (Wide band w/ 22K LPF)
Max Gain Level Noise 3.0 mV Basslink
(Level pot Max.) 1.8 mV Basslink w/ Remote Level Control 1.8 mV Basslink X
Max Gain Level Noise 2.0 mV Basslink
(Level pot Min.) 1.7 mV Basslink w/ Remote Level Control 1.7 mV Basslink X
Auto On/Off Time From 1 1/2 to 5 min. (depending on last input signal level)
Gain boost (min to max) 9.0 dB
Fuse: 25A Basslink
20A Basslink w/ Remote Level Control
20A Basslink X
Maximum Current Draw: 12A
Quiescent Current Draw: <800 mA
Protection Circuits:
Over/Under voltage 17.5, 8.5 VDC
Temperature 95 C
Short Circuit w/ 0.1 resistor
DC Offset Yes
Dimensions: 14-1/2" x 12-1/2" x 8-1/2" (L x W x H)
(369mm x 318mm x 216mm)
Weight 16 lbs./7.2kg
