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raeggis

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    Chorus II Freq Response

    in Technical/Restorations

    Posted

    On 9.7.2003 at 4:04 PM, Geo1 said:

    Can somebody tell me why the Chorus II has a low end frequency response of only 39Hz when it has a 15" woofer and a 15" passive radiator. Both the Forte and Quartet have a deeper low end response with smaller bass drivers, smaller passive radiators and in smaller boxes. Just investigating this seeming violation of the laws of physics.

    Klipsch has some wrong information on the values of their speakers. It is strange that no one has made a thread on this subject.  😉

    Heritage speaker specs share

    in Technical/Restorations

    Posted · Edited by raeggis
    More info

    On 15.4.2016 at 1:53 AM, mustang guy said:

    Chorus

    https://web.archive.org/web/20090619155856/http://www.klipsch.com/na-en/products/chorus-specifications/

     

    FREQUENCY RESPONSE 45Hz-20kHz(+-)3dB
    POWER HANDLING 100 watts maximum continuous (1000 watts peak)
    SENSITIVITY 101dB @ 1watt/1meter
    NOMINAL IMPEDANCE 8 ohms
    CROSSOVER FREQUENCY HF 7,000 Hz
    LF 650 Hz
    TWEETER K-79-K 1" (2.54cm) Phenolic diaphragm compression driver
    HIGH FREQUENCY HORN 90(o)x40(o) Exponential Horn
    MIDRANGE K-57-K 1.5" (3.81cm) Phenolic diaphragm compression driver
    MID FREQUENCY HORN 90(o)x40(o) Exponential Horn
    WOOFER K-48-E 15" (38.1cm) Fiber-composite cone
    ENCLOSURE MATERIAL Medium density fiberboard construction (MDF)
    ENCLOSURE TYPE Bass reflex via fonrt-mounted port
    DIMENSIONS 39" (99.06cm) x 18.5" (46.99cm) x 15.5" (39.37cm)
    WEIGHT 89 lbs. (40.4kg)
    FINISHES Walnut Oil, Walnut Lacquer, Oak Oil, Oak Lacquer, Finished Black
    BUILT FROM 1987
    BUILT UNTIL 1990
     
    Chorus II
     
    SPECIFICATIONS
    BUILT FROM: 1990
    BUILT UNTIL: 1996
    CROSSOVER FREQUENCY: HF 5,000 Hz<br>LF 600 Hz
    DIMENSIONS: 39" (99.06cm) x 18.5" (46.99cm) x 15.5" (39.37cm)
    ENCLOSURE MATERIAL: Medium density fiberboard construction (MDF)
    ENCLOSURE TYPE: Bass reflex via passive radiator
    FINISHES: Walnut Oil, Oak Oil, Oak Clear, Finished Black
    FREQUENCY RESPONSE: 39Hz-20kHz(+-)3dB
    HIGH FREQUENCY HORN: 90(o)x40(o) Exponential Horn
    MAX ACOUSTIC OUTPUT: 121dB SPL
    MID FREQUENCY HORN: 90(o)x40(o) Tractrix® Horn
    MIDRANGE: K-61-K 1.5" (3.81cm) Phenolic diaphragm compression driver
    NOMINAL IMPEDANCE: 8 ohms
    POWER HANDLING: 100 watts maximum continuous (1000 watts peak)
    SENSITIVITY: 101dB @ 1watt/1meter
    TWEETER: K-79-K 1" (2.54cm) Polymer diaphragm compression driver
    WEIGHT: 89 lbs. (40.4kg)
    WOOFER: K-48-E 15" (38.1cm) Fiber-composite cone active / KD-16 15" (38.1cm) Fiber-composite cone passive

    Chorus II

    It seems like Klipsch has wrong value on HF value CROSSOVER FREQUENCY: HF 5,000 Hz<br>LF 600 Hz !

    Right value on HF is 6000 Hz

    Chorus II passive raditor

    in General Klipsch Info

    Posted · Edited by raeggis
    Adjusted info

    Take a look at this item on eBay 😀

    The RSS390-PR 15'' passive radiator includes:
    (1) Passive radiator
    (7) 75 gram disk weights
    (1) wing nut (for tuning)
    (1) lock nut (for final assembly)

    Specifications: • Fs: 18.2 Hz • Vas: 7.51 cu. ft. (212.8 liters) • Qms: 4.01 • Cms: 0.22 mm/N • Mms: 400g • Rms: 12.41 kg/s • Sd: 829.6 sq. cm. • Xmech: 30 mm • Dimensions: Overall diameter: 15.29'', Cutout diameter: 14'', Depth: 4.76''.

    https://m.ebay.com/itm/Dayton-Audio-RSS390-PR-15-Aluminum-Cone-Passive-Radiator/222552760883?NAV=HOME

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