Radio Shack XL-260 owner manual Connecting Speakers, Preparing the Speaker Wires

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CONNECTING SPEAKERS

You can connect four speakers, two speak- ers and a subwoofer, or just two speakers to the amplifier and your auto sound system.

Important: Before you make the connec- tions, make sure both BRG/ST switches (on the left and right sides of the amplifier) are set to ST.

Preparing the Speaker Wires

Caution: You must connect a separate wire to each speaker terminal as described in the following procedures. Unless your auto sound system’s speakers use a common ground wire, do not use a common wire or chassis ground for speaker connections.

Notes:

•We recommend you use 16- or 18- gauge marked or color-coded wires to help you correctly connect the speakers to your amplifier.

•Color-coded wires have a stripe running down one of the conductors or different colored insulation for each conductor. Your local RadioShack store has a wide selection of speaker wire.

•For the maximum bass response and the best overall performance, keep your speakers properly phased (connect + to + and – to –).

1.With the speakers placed in their approximate locations, run one wire from each speaker to the amplifier.

If you are connecting a subwoofer, run two wires from each of the subwoofer’s terminals to the amplifier.

2.Separate each wire’s two conductors at both ends for a length of about 4 inches.

3.Strip the insulation from the ends of each conductor to expose 1/4 inch of wire. Twist the ends to secure loose strands.

Conductors

1/4 Inch

4 Inches

12

Connecting Inputs

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents XL-260 High Power 2-Channel Bridgeable Amplifier Contents Features FCC Wants YOU to Know14K Gold-Plated Noise-Isolated Low-Lev Before YOU Begin the Installation PreparationSupplied Hardware Choosing a Mounting LocationInstallation Order Routing Cables and WiresBefore YOU Make the Connections Preparing the Mounting AreaFm Page 6 Tuesday, May 9, 2000 1002 AM Connecting Ground and SWITCHED/PRIMARY Power Connecting Inputs LOW-LEVEL InputsHIGH-LEVEL Speaker Wire Inputs Using either a floating or common ground connectionFour Speaker Outputs Floating Ground ConnectionCommon Ground Connection Two Speaker Outputs Connecting Speakers Preparing the Speaker WiresConnecting Four Speakers Connecting Two Speakers Unbridged ConnectionConnecting Two Speakers Bridged Connection Connecting Two Unbridged Speakers and One Bridged Subwoofer Completing the Installation Testing ConnectionsCle’s negative battery terminal. Then Mounting the AmplifierCompleting the Installation Adjusting the Audio Level OperationTurning on Amplifier Adjusting Frequency Crossover Troubleshooting Symptom Possible Cause SuggestionTroubleshooting Care Replacing a FuseReplacing the SFE-Type Fuse Replacing the Blade-Type FusesSpecifications Limited One-Year Warranty

XL-260 specifications

The Radio Shack XL-260 was a pioneering model in the compact scientific calculator market introduced in the early 1980s. This device was particularly well-regarded for its unique blend of functionality, portability, and affordability, making it a popular choice among students and professionals alike.

One of the main features of the XL-260 was its classic LCD display, which offered a clear and easy-to-read output. The display was capable of showing up to 8 digits and allowed for straightforward viewing of calculations. This was particularly beneficial for users who needed to perform complex mathematical computations without experiencing eye strain.

The XL-260 was equipped with a wide range of mathematical functions that catered to different user needs. Basic arithmetic operations such as addition, subtraction, multiplication, and division were always accessible. Additionally, it featured advanced functions including square roots, percentages, and memory storage, allowing users to save and recall values quickly. This made it an excellent tool for engineering students and professionals who often needed to perform numerous calculations.

One of the standout technologies of the XL-260 was its use of solar power, which complemented its battery operation. This hybrid power source ensured that users could rely on the calculator for extended periods without the constant need for battery replacements. The solar panel, situated atop the device, captured light to power the electronic components, showcasing a forward-thinking approach to energy efficiency for consumer electronics during that era.

Another characteristic of the XL-260 was its user-friendly layout. The calculator had well-defined buttons that provided tactile feedback, making it easy to input data accurately. The keys were designed to be durable and responsive, reducing the potential for user error during fast-paced calculations. The compact design and lightweight profile added to its appeal, allowing users to easily carry it in their bags or even pockets.

Overall, the Radio Shack XL-260 represented an important era in the evolution of personal calculators. Its combination of essential features, user-oriented design, and innovative power solutions made it a staple for many during its time. Though the landscape of technology has evolved significantly since its release, the XL-260 remains a nostalgic symbol of early digital calculation devices that laid the groundwork for future advancements in scientific computing.
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