JM Sound

Piano black, 1 year old Specifications Driver Complement: LF: 2 each 15” Woofers, MF/HF: 1 each Dual Diaphragm Compression Driver mounted on WaveGuide Crossover: 5th Order Charge coupled with 3 x 9V (27V) @ 900 Hz Crossover Capacitors: High Voltage (400VDC) Metalized Polypropylene Sensitivity: 95dB / 2.83V /1M Frequency Response: 25Hz to 20kHz +/- 2dB Impedance Nominal: 4 Ohms (min. 3.5 Ohms, max. 9 Ohms) Dimensions 53"H x 18"W x 23"D Weight: 280 lbs Finish: Custom order M2!5 Loudspeakers Retail: $30,000 a pair

2.5 meter pair, spades

LOCAL PREFERRED- NO RETURNS Rare, 50wpc solid state amp. Made in Australia. Just biased and checked out by Bob Hovland JM Sound , Redondo Beach, Ca

LOCAL PREFERRED- perfect for single ended amps, custom built cabinets with swivel base JM Sound/ Redondo Beach From manufacturer's site: The Alpair 12P is the largest full-range driver produced by Markaudio. This driver is a development unit following on from the original metal coned Alpair 12 produced in 2009/2010. Several major design changes make this Alpair radically different from the original in terms of its operation and performance. Brief Markaudio Alpair series drivers are completely custom designed and built. All components (apart from the magnet) are individually designed and engineered with their own tooling and mould making sets. Alpair drivers are made by highly skilled engineers; they are not “mass produced”. Key Features The change to a custom paper cone with a more shallow profile reduces mass and increases dispersion performance. The new cone is only 21-mm deep compared to the metal unit at 26- mm. The 12P employs a new custom CCAW coil with an aluminum/paper wrap, vented, low mass thin-walled body. The spider is particularly special. Designed by Matsubara San, it employs a new long throw profile set together with a ribbed body to maintain linearity. The front suspension remains the same as the previous model; designed by Lu Yi Ping, its ultra thin wall doesn't support the cone. In terms of mechanical load performance, the 12P remains a single semi-free to air driver, possibly a unique design in its class (see description and picture below). Performance The 12P remains pure to designer Mark Fenlon's current criterion which is to make purist, single cone drivers that are full-range capable without the use of phase plugs, co-axial centre tweeters or whizzers. The 12P is 92dB efficient (1w/m2), operating to 22-kHz (-3dB) and having a resonance frequency of 42Hz (+/- 2Hz). The 12Pʼs power-train (cone, cap, coil and suspensions) is mechanically efficient and linear, requiring only modest powered amps to make it perform well. This driver is aimed strictly at the “audiophile” end of the market. Its cone is highly-resonance sensitive so clean low-distortion amplification and source components are advised.

Rare, Line Stage Solid State Remote Controlled Preamplifier with 4 RCA inputs, one set of XLR outputs and 2 sets of RCA Outputs Retail $5995

LOCAL ONLY/ so cal Forward Focused Bipolar Array™ technology for lifelike imaging and pinpoint localization Balanced Dual Surround System (BDSS) driver technology places rubber surrounds on both the outer and inner edges of each speaker cone for improved clarity frequency response 20-30,000 Hz (±3 dB) sensitivity 92 dB 8-ohm impedance handles up to 300 watts front array: dual 4-1/2" mids and 1" pure aluminum dome tweeter rear array: 4-1/2" mid and 1" pure aluminum dome tweeter 10" woofer with dual 10" passive radiators built-in 300-watt subwoofer amp one set of 5-way binding posts high-gloss black finish on top and bottom caps with cloth grille-wrapped enclosure 11-1/8"W x 44-1/4"H x 14-1/16"D List $2000

Retail $7900- reduced!! save over 50% Model incorporates the sonic virtues of the 2 chassis C1600 into a single chassis unit. The C1300 is the single chassis version of our highly regarded two chassis preamplifier. It employs an advanced circuitry and high quality components to provide outstanding musical reproduction of your favorite music. Like our other products, the C1300 is engineered and built to provide a lifetime of musical enjoyment. The circuitry components used in the C1300 are carefully chosen and hand soldered on the military grade epoxy circuit boards. C1300 Preamplifier Features: The power supply circuit uses GZ34, 6V6 and 6SL7 as rectifier. The preamp circuit features the use of two 12AX7 and two 12AU7 tubes for a low noise operation. Rectifier with choke filtering. Custom EI power transformer. Swiss made ELMA selector switches with gold-plated contacts. Four pairs of single-ended inputs and two pairs of outputs are installed for ease of connectivity. SPECIFICATIONS Input Impedance: 45,000 Ohms min,110,000 Ohms max Output Impedance: 1,400 Ohms Maximum Gain: 9 dB Frequency Response: +/- 1 dB from 5 Hz to 110,000 Hz Hum and Noise: -80 dB Maximum Output Voltage before Clipping: 30 Volts Total Harmonic Distortion: < 0.04% Power Consumption: 35 Watts (true RMS) Tube Complement: 2 x 12AU7 2 x 12AX7 1 x 5AR4 1 x 6SL7 1 x 6V6 Dimensions: 18.75" W x 14.25" D x 5.50"H Net Weight: 35 lbs