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planer and electrostatic

planer and electrostatic

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  • Infinity RS1B

    Infinity RS1B

    Legendary. original rs1b, excellent condition, Must be crated for shipping. We have updated the electrolytic capacitors in the crossover. The system comes in five sections: two woofer columns, two upper-range columns, and an active crossover and servo control module. Each bass column contains six 8" polypropylene-cone woofers. Each upper-range column contains seven of Infinity's proprietary EMIM ribbon midrange drivers and four EMIT ribbon tweeters (one of them aiming out the rear, of all things!). System crossovers are at 125Hz (nominal), 750Hz, 3kHz, and 8kHz, and the number of operating drivers diminishes as the frequency goes up, to minimize vertical treble beaming due to phase interference (eg, above 8kHz only The RS-1B must be biamplified using its own specific crossover/servo module. This has front panel adjustments for woofer crossover frequency, woofer level, bass contour (rising, flat or rolling off with diminishing frequency), LF range (cutoffs at 22, 30, or 36Hz), and amplifier input impedance. The crossover has amplifying circuitry only in the LF section; the signal fed to the upper-frequency amplifiers is passive (unamplified), so there is virtually no possibility of adding nonlinear distortion components to the signal (footnote 1). Because of this, the turnover frequency of the high-pass section varies according to the input impedance of the HF amplifier. (With a given capacitor in series, the crossover point will rise as amplifier input impedance diminishes. When the front panel impedance switch is set to match that of the higher-frequency amplifier (footnote 2), crossovers will occur at frequencies specified in the instruction manual.) There are also driver level adjustments on the upper-range speaker towers, for "Low Tweeter" (2–5kHz) and "High Tweeter" (8kHz up). It would seem you should be able to get just about any kind of sound from the RS-1Bs you wish, and that proves to be almost the case. The servo function requires an unusual woofer hookup. The woofer columns do not connect directly to their LF driving amplifier, but instead to five-way binding posts on the crossover module. The module, in turn, connects to the LF driving amp. This arrangement allows the device to compare LF amplifier output signals with signals appearing across the speaker terminals, and to cancel out any detected differences (which would represent back-EMF from spurious woofer-cone motions). Learn More
    $4,900.00

  • Martin Logan ESL-X NEW!

    Martin Logan ESL-X NEW!

    Martin Logan ESL-X NEW! in the boxes. Inquire for a trucking quote. black $4500/pr retail Learn More
    $3,375.00

  • Apogee Acoustics Studio Array.   Full range ribbon

    Apogee Acoustics Studio Array. Full range ribbon

    Apogee Acoustics Studio Array , black with gloss side trim, one owner since new, excellent, currently in New York, must be crated for $350 to be shipped freight for an additional amount Learn More
    $9,000.00

  • Apogee Acoustics Stage Pair

    Apogee Acoustics Stage Pair

    Apogee Acoustics Stage Pair with mahogany trim, with hardware and original boxes (must lay flat and ship by truck only) In 11/18 Payment by cash, check or wire. Local pickup preferred. Work great but sold as is. Fragile. Truck only on a pallet if sent out of state. Learn More
    $1,700.00

  • Martin Logan Mosaic

    Martin Logan Mosaic

    Martin Logan Mosaic pair, local pickup in Florida preferred.. No original boxes, must be trucked inquire Learn More
    $900.00

  • Martin Logan Theater Center channel

    Martin Logan Theater Center channel

    Martin Logan Theater Center channel with bracket local pickup or drop off preferred, inquire Learn More
    $780.00

  • Martin Logan Clarity

    Martin Logan Clarity

    Martin Logan Clarity new tweeters just put in 2/21 local pickup in NY, northeast best Learn More
    $1,100.00

  • Martin Logan Stage X center channel

    Martin Logan Stage X center channel

    Martin Logan Stage X center channel black Learn More
    $1,400.00

  • Martin Logan Source

    Martin Logan Source

    Martin Logan Source, used, black and excellent, no boxes, local pickup preferred Frequency Response 42–22,000 Hz ±3dB Horizontal Dispersion 30° Vertical Dispersion 28" (71cm) line source High Frequency Transducer Generation 2 CLS™ electrostaic transducer » Panel Dimensions 28" × 8.6" (71 × 22cm) » Radiating Area 241 in2 (1,562 cm2) Low Frequency Transducer 8" (20.3cm) high excursion, high-rigidity paper cone with extended throw drive assembly, non-resonance asymmetrical chamber format; bass reflex Sensitivity 90 dB/2.83 volts/meter Impedance 5 Ohms, 1.6 @ 20kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers. Recommended Amplifier Power 20‒400 watts per channel Crossover Frequency 470Hz Components Custom-wound audio transformer, air core coils Inputs Custom 5-way binding posts Weight 47 lbs. (21.4 kg) Dimensions 51.2" × 9.7" × 14.6" (130cm × 24.5cm × 37cm) Learn More
    $1,299.00

  • Onix Rocket Strata Mini

    Onix Rocket Strata Mini

    Onix Rocket Strata Mini Tremendous amount of speaker for the money, active subwoofer built in Local pickup only or discuss delivery within Florida or eastern i95 corridor. Do not hit the buy it now button please 3.5 way, 4 driver full range speaker Sealed for midbass, midrange, and tweeter Vented, rear firing for powered subwoofer. 97 lbs each Learn More
    $650.00

  • Magnepan MG 1.4

    Magnepan MG 1.4

    Magnepan MG 1.4 no boxes, local pickup in Florida preferable. Do not purchase without talking to us The Magnepan MG-1.4 loudspeaker was conceived and designed for perfectionists. One of the most revealing loudspeakers made, it will provide outstanding music reproduction when used with high quality components. Due to the elegant simplicity and ruggedness of the design, the Magneplaner MG-1.4 loudspeakers will give many years of trouble free service. Specifications Type: 2 way, 2 driver loudspeaker system Frequency Response: 40Hz to 18kHz Recommended Amplifier: 100 to 200W Crossover Frequency: 1000Hz Impedance: 5Ω Sensitivity: 87dB Bass: 1 x 428" sq Tweeter: 1 x 68" sq Grille: off white, black, grey fabric Finish: oak trim Dimensions: 22 x 60 x 2 inches Weight: 35lbs Learn More
    $440.00

  • Magnepan MG1.7 one piece working, one not

    Magnepan MG1.7 one piece working, one not

    Magnepan MG1.7 one piece working, one not must be trucked inquire Learn More
    $550.00

  • Martin Logan Odyssey local pickup in Dallas or Florida

    Martin Logan Odyssey local pickup in Dallas or Florida

    Martin Logan Odyssey local pickup in Dallas or our shiop (two pairs available) Expensive and large . Learn More
    $1,999.00

  • Martin Logan Source Loudspeakers

    Martin Logan Source Loudspeakers

    Martin Logan Source Loudspeakers, excellent condition. Local pickup in Florida preferred. Please phone before purchasing Learn More
    $1,299.00

  • Martin Logan Vantage

    Martin Logan Vantage

    Martin Logan Vantage , local pickup preferred Learn More
    $1,999.00

  • Martin Logan Aeon pickup in Dallas or Florida

    Martin Logan Aeon pickup in Dallas or Florida

    Local pick up only in Florida or Dallas (two pairs available) Frequency Response 43–22,000 Hz ±3dB Horizontal Dispersion 30° Vertical Dispersion 37" (94cm) line source High Frequency Transducer 37" (94cm) CLS™ electrostatic transducer Low Frequency Transducer 8" (20.3cm) high excursion, high rigidity cone with extended throw driver assembly, non-resonant asymmetrical chamber format; bass reflex Sensitivity 89 dB/2.83 volts/meter Impedance 4 Ohms, 1.32 at 20kHz. Compatible with 4, 6, or 8 Ohm rated amplifiers. Recommended Amplifier Power 20‒400 watts per channel Crossover Frequency 450 Hz Components Custom wound audio transformers, polypropylene capacitors, air core coils Inputs Custom 5-way bi-wire binding posts Weight 55.5 lbs. (25.2 kg) Dimensions 58" × 10" × 16" (148cm × 26cm × 41cm) Learn More
    $1,150.00

  • Martin Logan Preface speakers

    Martin Logan Preface speakers

    FLOOR STANDING STEREO/HOME THEATER FRONT/SURROUND MartinLogan Performance On A Budget: Key to Preface’s extraordinary performance is our high-resolution ATF (Advanced Thin Film) driver. Superior in nearly every way to conventional moving-coil transducers (cones and domes) and very similar in most respects to the electrostatics that we’ve always favored, Preface’s ATF driver projects a wonderfully detailed and three-dimensional sound field. Our proprietary Vojtko crossover topology marries the ATF driver to triple high-resolution 6.5-inch woofers with powerfully deep and accurate bass. Learn More
    $500.00

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