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Rogers LS4a

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Rogers LS4a

Post by chewkwokhon on Mon Jun 13, 2016 11:43 pm

Rogers LS4a Speaker
No. of units– one pair
Status: Used
Country of Manufacture: Make in England
Year of Manufacture:  Unknown
Condition: 6/10, working condition
Accessories: original fabric grille
Note: Tweeter is replaced with a Fabric Dome
            Woofer is original
            Crossover is original
Item location: Kelana Jaya, Petaling Jaya.
Price: RM500
Payment Method: COD
Contact: 019-3384067
                 Chew
 
 
Specifications here:
 
Frequency Response:  55 Hz - 20 kHz  ±2 dB
Impedance:  8 Ω Nominal
Sensitivity:  88 dB at 1m for 2,83 volts input
Power Handling:  150 watts (unclipped programme)
Recommended Amplifier Power:  15 - 100 watts per channel
Maximum Sound Pressure Level:  105 dBA (pair at 2 m)
Drive Units:
Tweeter :  ------------
Bass/Mid-range:  Rogers 205 mm Polypropylene coned of advanced acoustic design , with high flux magnet and Kapton voice coil former.
Crossover:  8 precision elements crossing over at 3 kHz at 18 dB per octave
Bass Loading:  Acoustic suspension to form a well damped Butterworth 2nd oreder maximally flat alignment with a -3 dB point at 55 Hz.
Distortion:  Less than 1% 2nd and 3rd harmonic 50 Hz -20 kHz at 90 dB S.P.L.
Connectors:  4 mm binding posts, spaced at 19 mm
Recommended Placement:  Stands - minimum 500 mm high with loudspeakers angled inwards so that their axes cross just in front of the listener.
Cabinet:  Critically damped partical board with medite baffle.
Finish:  High quality synthetic veneer, and black grille cloth
Dimensions (H x W x D):  430 x 255 x 245 mm (17" x 10" x 9,7")
Weight:  7,8 kg









chewkwokhon
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Re: Rogers LS4a

Post by chewkwokhon on Sun Jul 03, 2016 11:10 am

Welcome to discuss

chewkwokhon
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Re: Rogers LS4a

Post by chewkwokhon on Wed Jul 13, 2016 11:09 pm

welcome to negotiate

chewkwokhon
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Re: Rogers LS4a

Post by chewkwokhon on Sun Aug 07, 2016 11:43 am

...

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Re: Rogers LS4a

Post by chewkwokhon on Fri Sep 23, 2016 1:44 pm

...

chewkwokhon
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Re: Rogers LS4a

Post by chewkwokhon on Thu Oct 13, 2016 1:57 pm

...

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Re: Rogers LS4a

Post by chewkwokhon on Mon Feb 20, 2017 5:01 pm

...

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Re: Rogers LS4a

Post by chewkwokhon on Sat Mar 25, 2017 10:09 pm

...

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Re: Rogers LS4a

Post by chewkwokhon on Sun Apr 16, 2017 10:44 pm

...

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