Rockville Blutube WD+(4) HC655-16 sku-1918170683 Set

Rockville Blutube WD+(4) HC655-16, sku-1918170683, is listed as Restored Tech under UPC 613817167974. The package contains a BluTube WD 70w Bluetooth tube amplifier and home stereo receiver in a 2-Tone silver and wood-accent finish, plus 4 pairs of white HC655-16 in-ceiling speakers, for 8 speakers in total. The receiver is rated at 25 watts x 2 RMS at 8 ohms and 35 watts x 2 RMS at 4 ohms.

It has 1 set of RCA inputs for a TV, laptop or MP3 player, optical and coaxial inputs, a sub output, a USB music input and a headphone output. It also has Bluetooth with an approximately 33-foot range, a preamplifier, a VU meter and a 2-band bass and treble equalizer. Rear terminals take banana plugs or binding posts for 2 speakers. USB playback supports WAV, MP3, WMA, APE and FLAC.

Receiver specifications are a 22Hz-20kHz frequency response at +/-3dB, 47kO input impedance, 300mV input sensitivity, 4-8ohm output impedance, =0.02% total harmonic distortion, =86dB signal-to-noise ratio and Bluetooth 2.1+EDR. Tube amplification can clip smoothly, which may give an impression of greater power at high volume. Each HC655-16 pair consists of 6.5-inch, 2-way speakers.

Power handling is 250 watts peak and 80 watts RMS per speaker, or 500 watts peak and 160 watts RMS per pair. Each speaker has a 6.5-inch polypropylene cone woofer with a rubber surround, a 1-inch aluminum voice coil, a 1/2-inch Mylar dome tweeter, a 10 oz ferrite magnet and spring-loaded push terminals. The swivel tweeter can be aimed for imaging. The paintable, flush-mount grilles are white.

Mounting depth is 2.91 inches and cut-out diameter is 7.6 inches. Speaker specifications are a 60Hz-20KHz frequency response, 89dB sensitivity at 1w / 1m and 16-ohm impedance.