17/05/2018-15:10:46
RE: Large Bande 8" LCao 93,5dB
L-Cao full range speaker 8’’ .
The motor is composed of expensive and good sounding alnico magnets.
The paper cone profile is designed with reference to the legendary Diatone PM610. This cone profile was designed under an extensive research by NHK of Japan way back in 1950's as an effort to make a single cone full range speaker without the normal cone breakup problem of conventional wide range drivers. The result is a no-whizzer design with exceptional frequency response, wide dispersion and low-distortion performance, in par with the cone profile of Western Electric's WE755a.
L Cao extends the design from original 5 inches to 8 inches, making the speaker driver more versatile with better bass response without sacrifice of high frequency performance.
In this alnico version of the L Cao 8 inch speaker (the ceramic magnet version was launched in 2009 and we sold several pairs on ebay ), the design is further optimized with phenolic spider for better transient response. The manufacturing quality is further improved too. Each pair of speakers are carefully selected and tightly matched( please see below t-s parameters picture of a pair of L.Cao drivers from our stock). One cannot find near quality and performance of alnico full range speakers in the market.
As there is manufacturing tolerance, the values of the t-s parameters in the picture are for reference only. But this piece of information is to demonstrate how tight L.Cao drivers are matched during manufacturing. We do not provide exact t-s parameters for each pair of L.Cao we sold though.
The frequency response below is based on the equalized response with the recommended equalization network as shown in the schematic. Each pair of L.Cao driver includes two inductors. Users can pick and tune the capacitor/resistor values of their own to get the tonal quality they prefer.
Cabinet recommendation : 100 litre TQWT box
Shipping : Western Europe and N. America -- US$60.00
General Specification:
Maximum Power : 20Wrms
Frequency : 40Hz to 20KHz ( in box)
Impedance : 8 Ohm
Xmax : 1.8mm
Sensitivity : 94dB
Fs : 55Hz
Qts : 0.7
Vas : 65L
Bon, apparemment les .docx ça passe pas en fichier joint...
The motor is composed of expensive and good sounding alnico magnets.
The paper cone profile is designed with reference to the legendary Diatone PM610. This cone profile was designed under an extensive research by NHK of Japan way back in 1950's as an effort to make a single cone full range speaker without the normal cone breakup problem of conventional wide range drivers. The result is a no-whizzer design with exceptional frequency response, wide dispersion and low-distortion performance, in par with the cone profile of Western Electric's WE755a.
L Cao extends the design from original 5 inches to 8 inches, making the speaker driver more versatile with better bass response without sacrifice of high frequency performance.
In this alnico version of the L Cao 8 inch speaker (the ceramic magnet version was launched in 2009 and we sold several pairs on ebay ), the design is further optimized with phenolic spider for better transient response. The manufacturing quality is further improved too. Each pair of speakers are carefully selected and tightly matched( please see below t-s parameters picture of a pair of L.Cao drivers from our stock). One cannot find near quality and performance of alnico full range speakers in the market.
As there is manufacturing tolerance, the values of the t-s parameters in the picture are for reference only. But this piece of information is to demonstrate how tight L.Cao drivers are matched during manufacturing. We do not provide exact t-s parameters for each pair of L.Cao we sold though.
The frequency response below is based on the equalized response with the recommended equalization network as shown in the schematic. Each pair of L.Cao driver includes two inductors. Users can pick and tune the capacitor/resistor values of their own to get the tonal quality they prefer.
Cabinet recommendation : 100 litre TQWT box
Shipping : Western Europe and N. America -- US$60.00
General Specification:
Maximum Power : 20Wrms
Frequency : 40Hz to 20KHz ( in box)
Impedance : 8 Ohm
Xmax : 1.8mm
Sensitivity : 94dB
Fs : 55Hz
Qts : 0.7
Vas : 65L
Bon, apparemment les .docx ça passe pas en fichier joint...
Amicalement
FRED
FRED