Infinity 4SC User Manual

BassLink® 4sc

INTRODUCTION

THANK YOU for choosing the Infinity®BassLink 4sc amplifier expansion module for use with BassLink®II. To ensure optimum performance, we strongly recommend that installation be entrusted to a qualified professional. Although these instructions explain how to install the BassLink 4sc in a general sense, they do not show the specific installation methods for your particular vehicle. If you feel you do not have the necessary tools or experience, do not attempt the installation yourself; rather, ask your authorized Infinity car audio dealer about professional installation options.

Remember to keep this manual and your sales receipt in a safe place for future reference.

HEARING WARNING!

Playing loud music in a vehicle can permanently damage your hearing, as well as hinder your ability to hear traffic. We recommend using low volume levels while driving. Infinity accepts no liability for hearing loss, bodily injury or property damage resulting from the use or misuse of this product.

BASSLINK 4SC INSTALLATION

This owner’s manual assumes BassLink II is installed in your vehicle. If you are installing both units simultaneously, refer to the BassLink II owner’s manual for instructions regarding the mounting of BassLink II and the REMOTE LEVEL control, and to this owner’s manual for tuning.

DESCRIPTION

The BassLink 4sc is a four-channel plug-and-play amplifier designed to make upgrading your system easy. The BassLink 4sc is designed to slide into an available slot in the BassLink II. The BassLink 4sc also includes a Phantom Center circuit, which creates the illusion of a center channel without requiring a center speaker.

INSTALLATION

1. Disconnect BassLink II’s power connection from the battery.

2. Remove the wiring cover from BassLink II.

3. Remove, but do not discard, the eight screws

that hold the AMPLIFIER DOCK cover panel in place (Figure 1).

Figure 1.

Figure 2.

PARTS LIST

4sc amplifier Mounting screws (8-M3 x 14mm) Spare fuse (30A) Owner’s manual Infinity sticker Warranty card

4. Remove and discard the screw that attaches

the two wiring harnesses and connectors to the dock cover.

5. Slide the 4sc amplifier partially into the

opening and connect the wiring harness connectors to the appropriate connectors on the BassLink 4sc’s circuit board (Figure 2).

6. Insert the amplifier and secure it using the

eight screws that were removed in Step 3 (Figure 2). Extra screws have been included with the 4sc.

7. Upgrade the fuse at the vehicle’s battery (installed with BassLink II) to a 50A fuse.

8. Reconnect battery power lead.

CONNECTIONS

BassLink II

Remote Level Control

Remote Level

Control

4-Channel Line-Level Outputs

(from Source Unit)

3d.

3c.3a.

3b.

Source Unit

Remote Level

Control

Remote Level

Control

Remote Level

Control

2-Channel Line-Level Outputs

(from Source Unit)

2-Channel Speaker Outputs

(from Source Unit)

4-Channel Speaker Outputs

(from Source Unit)

Rear

Front

Note: In order for the Phantom Center circuit to operate properly, the speakers and input wires MUST be connected in proper polarity!

SPEAKER CONNECTIONS

Connect the speakers to the FRONT and REAR screw terminals, observing proper polarity (Figure 3).

Figure 3.

INPUT CONNECTIONS

You must connect full-range signal to all four inputs on BassLink II (if you are using the 4sc). Do not connect a subwoofer output to any of the inputs if you are using the 4sc.

Connect the input signal wires according to Figures 3a through 3d.

If your source unit provides only speaker-level output wires, connect those wires to the Universal Interface connections as shown in Figures 3a or 3b.

If your source unit provides line-level outputs with RCA-type connectors, connect the signal cables to the FRONT and REAR LINE LEVEL inputs as shown in Figure 3c or 3d.

Note: If your source unit provides two line-level outputs and two speaker-level outputs, you may connect the line-level output to the appropriate (front or rear) RCA-type input and the speakerlevel outputs to the other (front or rear) Universal Interface connector.

BassL i nk

4sc

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