The LBT-D550 lets you record music to a cassette tape.
The Sony LBT-D550 is a bookshelf audio system that has two three-way speakers, a remote control, and a main unit which integrates a tuner, five-disc CD changer, dual cassette deck and amplifier. It offers not only the ability to play back music but also to record it from any source to an audio cassette.
Amplifier
The LBT-D550's amplifier is rated to produce 100 watts per channel, although this rating is at a relatively high 0.9% distortion level and is limited to a frequency range of 70 to 20,000 hertz. Sony only rates this amplifier when driving an eight ohm load, that of the included speakers. Regardless of output wattage, the amplifier's frequency range is 15 to 30,000 hertz, as measured with no more than a three decibel fall-off from flat response. It also has two auxiliary inputs--one for the audio from a video source and another for a turntable.
Tuner
The tuner on this unit contains both AM and FM bands. They both tune the full spectrum for their respective frequencies and have connections for external antennas, which are included.
Cassette Decks
Both cassette decks support type 1 ferric oxide and type 2 chromium dioxide tapes and offer Dolby B noise reduction. They have minimal wow-and-flutter, measured at 0.1% and have a frequency response of 40 to 13,000 hertz with type-1 tape. Using type-2 tape extends their high-frequency response to 14,000 hertz.
CD Changer
The LBT-D550's CD changer uses 780 to 790 nanometer light emitted by a laser to read CDs. It offers better than 90 decibels of channel separation and dynamic range and a signal-to-noise ratio of over 93 decibels. Its frequency response ranges from 2 to 20,000 hertz and its distortion levels are under 0.01%.
Dimensions
The Sony LBT-D550 measures 14 inches wide, 15-5/8 inches tall and 16 inches deep. It weighs 26-1/2 pounds. Each of its speakers weighs a little over 10-1/2 pounds and measures 10-1/4 inches wide, 18-3/4 inches tall and 7-3/8 inches deep.
Tags: frequency range, frequency range hertz, frequency response, inches deep, inches tall
