Optimus STA-3500 owner manual Tuning the Radio, Manual and Automatic Tuning, Memory Tuning

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Basic Operation

Tuning the Radio

Note: For weak signals, we recommend manual tuning.

Your receiver offers three types of electronic tuning— manual, automatic, and memory.

Manual and Automatic Tuning

Follow these steps to manually or automatically tune to the stations.

1.Press TUNER. Then press FM/AM to select the desired band.

The receiver tunes to and displays the frequency last selected in that band.

2.Press TUNING or once to move to the next higher or lower frequency. Or, press and hold down TUNING or to rapidly change frequencies. Release the button to stop.

To search for the next higher or lower FM station, release TUNING or as soon as the frequency starts to change. The receiver searches up or down the FM band until it finds a strong station.

Notes:

•STEREO appears on the display when FM broadcasts are received in stereo and the receiver is not set to FM mono.TUNED appears on the display when you tune to a strong station. To find a weak FM station, press FM MONO until MONO appears. See “Using FM Mono” on Page 15.

•If you press TUNING at the top of the frequency range or TUNING at the bottom of the frequency range, the display returns to the other end of the range.

Notes:

•If you store a frequency in a memory that already contains a frequency, you replace the previous frequency.

•If your receiver is disconnected from AC power for several days, it loses all the stored frequencies.

Memory Tuning

Memory tuning lets you instantly tune to a stored frequency. You can store up to 30 AM or FM frequencies (10 frequencies in each of three classes) in the receiver’s memory.

Follow these steps to store a station.

1.Press TUNER. Then press FM/AM to select the desired band.

2.Using either manual or automatic tuning, select the frequency you want to store.

If desired, press FM MONO for FM monaural sound (see “Using FM Mono” on Page 16). This setting is stored in the memory.

3.Press MEMORY. MEMORY appears for 5 seconds.

4.While MEMORY is on the display, press CLASS until the class number you want (1-3) appears on the display. Then press STATION or until the station number you want appears on the display.

Repeat these steps to store additional frequencies. Do not enter a frequency while the display flashes.

To tune to a stored frequency, press CLASS so the desired class number appears on the display, then press STATION / to select the station.

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Contents Please read before using this equipment AM/FMIntroducing the Optimus STA-3500 Important Safety Instructions Contents Preparing Your Receiver Positioning SpeakersConnecting Speakers Preparing the Speaker WiresConnecting the a and B Speakers Connecting a CD Player Connecting a TurntableConnecting Cassette Decks Connecting Another Audio SourceFM Antennas Connecting the AntennasAM Antennas Terminal Installing Remote Control’s Batteries Using One Remote Control for More than One UnitUsing the AC Power Outlet Connecting to AC PowerBasic Operation Memory Tuning Tuning the RadioManual and Automatic Tuning Cassette Deck Features Using FM MonoUsing Headphones Balance ControlRecording a Program Source Using the Tape 1/VCR ButtonUsing the Tape 2 Monitor Button Simultaneous Recording and PlaybackDubbing a Cassette Tape Using the Remote Control Receiver/Amplifier SectionCD Player Section Cassette Deck SectionTroubleshooting Problem Cause SolutionCare and Maintenance FCC Wants You To Know FM Tuner SpecificationsAmplifier AM TunerSpecifications GeneralIndex to Features by Control Name ControlPage Page RadioShack Division of Tandy Corporation Fort Worth, Texas

STA-3500 specifications

The Optimus STA-3500 is a high-performance, compact stereo amplifier that has gained popularity among audiophiles and home theater enthusiasts. Known for its exceptional sound quality and robust construction, the STA-3500 is designed to deliver impressive audio performance without compromising on style or functionality.

One of the standout features of the STA-3500 is its efficient Class D amplification technology. This technology allows the amplifier to deliver high power output while maintaining low heat generation and energy consumption. The STA-3500 can produce up to 50 watts per channel into an 8-ohm load, making it suitable for driving a wide range of speakers, from compact bookshelf models to larger floor-standing units.

The amplifier is equipped with advanced circuitry that ensures minimal distortion and enhanced audio clarity. It utilizes sophisticated filtering techniques, which contribute to a clean, dynamic sound, making it an excellent choice for music enthusiasts who demand the best audio experience. The STA-3500 also features a wide frequency response, allowing it to reproduce low bass notes and high-frequency details with precision.

In terms of connectivity, the STA-3500 provides multiple input options, including RCA and AUX inputs, making it versatile for various audio sources such as CD players, smartphones, and TVs. Additionally, it includes speaker outputs that are compatible with standard banana plugs, spade connectors, or bare wire, ensuring seamless integration into any audio setup.

The build quality of the STA-3500 is another highlight. The amplifier is housed in a sturdy metal chassis that not only enhances its durability but also helps reduce electromagnetic interference. Its sleek design, complete with a brushed aluminum front panel, allows it to fit elegantly into any contemporary audio system.

Lastly, the Optimus STA-3500 features user-friendly controls, including a volume knob and input select switch located on the front panel. This accessibility makes it easy for users to adjust settings on the fly, enhancing the overall listening experience.

In summary, the Optimus STA-3500 is a powerful and compact stereo amplifier that combines advanced Class D technology with high-quality construction. With its impressive power output, minimal distortion, and versatile connectivity options, it stands out as a top choice for anyone looking to elevate their audio experience.
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