Vintage ADS L1230 Floorstanding Speakers & Yamaha AX 900 Amplifier - Come away with me Norah Jones

Hoang Tran 5. März 2014 0 Aufrufe

Beschreibung

A/D/S (Analog & Digital Systems) was at the top of their game with the L-1230 Professional Monitor. This large, floor standing, mirror imaged, 3-way system was designed by Mike Kelly, before he left to start Aerial Acoustics. The resulting system has extended and flat frequency response, high efficiency, exceptional accuracy/low-distortion, precision imaging, and dynamic linearity.

Specifications:
Frequency Response: 30 to 20,000 Hz +/- 3 dB, 20 to 28,000 Hz +/- 5 dB
Impedance: 6 Ohms nominal, 4 Ohms minimum
Efficiency: 94 dB SPL with 2.8V RMS ("1 Watt") pink noise input measured at 1 meter in typical listening room (2000 ft3)
Crossover: Approximately 12 dB/octave at 550 Hz and 4000 Hz
Power Rating: 100 Watts minimum 200 Watts maximum
Recommended Amplifier Power: 20 Watts minimum 200 Watts maximum
Cabinet: Select natural walnut over extra-high-density particle board, solid walnut edge inserts
Baffle: Black finish with diffraction-corrected flush driver mounting
Grille: Black stretch cloth over custom wood frame (removable)
Driver Complement:
One acoustic suspension soft-dome tweeter, 0.75" diameter, with samarium cobalt magnet, single-layer, high-temperature metal voice coil. Magnetic flux density: 1.8 Teslas (18,000 Gauss), Magnetic flux: 325,000 nanoWebers. Total moving mass = 0.2 grams. One acoustic suspension soft-dome mid-range driver, 2" diameter, with single-layer, high-temperature metal voice coil. Magnetic flux density: 1.55 Teslas (15,500 Gauss), Magnetic flux: 1,400,000 nanoWebers. Two long-excursion woofers, 8" diameter, with 1" high-temperature voice coils and tapered Stifflite cones. Magnetic flux density: 0.85 Teslas (8,500 Gauss), Magnetic flux: 500,000 nanoWebers. Total moving mass = 0.5 ounce (each).
Dimensions: 19"W x 40.5"H x 9.75"D. Weight: 74 lbs each.
Produced 1978-84. Retail $1500/pr.

These very rare vintage ADS L1230 floorstanding speakers are parts of my audio collection. The song that was chosen to test these speakers is "Come away with me" from the DVD Live in New Orlean by Norah Jones: I am recording and publishing all my audio collection of speakers (including ADS L1230, Acoustic Research AR5, AR48S, Sonab OA14, DCM Time Window, Marantz HD880, Infinity SM155,...) and amplifiers including (Marantz, Rotel, Technics and Yamaha). If you are audio lovers and would like to have more and better video clips from me, please comment and support for my project