Basic Operation

Warning: To prevent possible hearing loss, turn VOLUME to MIN before you turn on the receiver or change the program sources. After you turn on the receiver or change the program source, adjust VOL- UME to a comfortable listening level.

Note: The controls on the remote control work the same as the buttons on the receiver’s front panel.

Follow these steps to use the receiver.

1.Press POWER to turn on the receiver’s power. It takes about 5 seconds to begin hearing sound.

2.Select the speakers.

Note: If you want to find out what a par- ticular button or control is used for, see Page 18(for the remote control) or Page 25(for the front panel) to find the page where the button or control is described.

Note: If you select a source while TAPE 2 MONITOR is engaged, TAPE 2 flashes five times on the display, reminding you to disengage the TAPE 2 MONITOR func- tion

If you connected speakers only to the A (or B) SPEAKERS terminals, press SPEAKERS A (or B) to turn on only those speakers. Do not press

both SPAKERS A and B. Doing so disconnects all speakers.

If you connected speakers to both the A and B SPEAKERS terminals, do any of the following:

•Press in SPEAKERS A or B to turn on either pair of speakers for a two- speaker stereo effect.

•Press in SPEAKERS A and B to turn on both pairs of speakers for a four-speaker stereo effect.

•Press SPEAKERS A and B to the out position to silence all speakers and listen privately with headphones (see “Using Headphones” on Page 15).

3.Select a program source.

To tune to a radio station, see “Tuning the Radio” on Page 15.

To listen to signals from the component connected to TAPE 2 MONI- TOR, press TAPE 2 MONITOR so TAPE 2 appears on the display.

To listen to a source other than one connected to TAPE 2 MONITOR, be sure TAPE 2 does not show on the display. If necessary, press TAPE 2 MONITOR so TAPE 2 disappears.

Then press TAPE 1/VCR, LD/DVD, CD, TUNER, or PHONO, or repeatedly press FUNCTION on the remote control, to display the desired program source.

4.Adjust VOLUME clockwise to increase the volume and counterclockwise to decrease it. Or, you can use VOLUME –/+on the remote control.

5.Use the BASS and TREBLE controls to adjust the program’s tonal quality. To enhance the bass level, press SUPER BASS.

6.Adjust BALANCE to suit your listening preferences. See “Balance Control” on Page 14.

7.Press POWER to turn off the receiver.

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.