Normal/Phantom/Bypass mode
or
trademarks, you can enjoy Dolby surround sound.
or 
trademarks, you can enjoy surround sound using 4 speakers, but not the center speaker.
For a stereo 2 channel input or a Dolby digital 2/0 input, sound will be output from the front left, front right, center and surround speakers. The same mon- aural channel will be output from the left and right surround speakers.
For a Dolby digital 5.1 channel input, sound will be output from the front left, front right, center, surround left and surround right speakers.
For a Dolby digital 1/0 input, sound will only be output from the center speaker.
Sound will only be output from the front left and front right speakers.
For a Dolby digital multichannel input, any center or rear signals will be mixed and output from the front speakers.
For a Dolby digital 1/0 input, monaural sound will be output from the front speakers.
If the EQUALIZER button is pressed in the Normal/Phantom/Virtual mode, the unit is switched to the Bypass mode automatically.
When in the Normal/Phantom mode, the equalizer will be set to FLAT.
You cannot use the Normal/Phantom and Dolby Digital surround features with headphones.
When headphones are connected to the headphone jack, the Normal/Phantom and Dolby Digital surround modes will be canceled. (The NORMAL or PHANTOM button will not work.)
Pressing the REC PAUSE 
CD-DD4500 specifications
The Sharp CD-DD4500 is a versatile and powerful component CD player that blends retro design with modern technology, making it a standout choice for audiophiles and casual listeners alike. Known for its impressive build quality and impressive sound reproduction capabilities, the CD-DD4500 is a staple in home audio setups.One of the key features of the Sharp CD-DD4500 is its robust CD playback capability, which supports various formats, including CD-DA, CD-R, and CD-RW. This means users can enjoy a wide range of audio content from traditional CDs to personalized playlists burned onto discs. The player is equipped with a high-performance digital-to-analog converter that ensures crisp and clear sound reproduction, minimizing distortion and enhancing the listening experience.
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