Thanks for your input Trelja.
The Model I built was the C/3 with the 2 pressure release holes on the front of the cabinet. I later modified the cabinets and plugged the 2 front ports, heavily damped the interior sides after incorporating an extended port the top rear of the cabinet (the port area that was half the area of the driver) approximating a modified line tunnel to relieve back pressure. I could therefore adjust the excursion of the driver and subsequent airflow by increasing the dacron dampening and adding foam filters which I cut for the rear port. I cut off the low frequency signal with an external electronic crossover at 70Hz. The result with the rear venting was airier and more spacious midrange reproduction, better transients and the sonics became more 3 dimensional. Obviously without the crossover, I severely restricted the signal intput to the speakers rather than hyperextend the driver as the XMas was limited. But I digress...
Upon examination, the tweeters are ScanSpeak's; Model D2008/8512. The ScanSpeak P17WJ00, 6.500" midbase drivers will probably be my choice with little or no internal crossover mods to Bud's original design. I will also consider the Silver Flute W17RC38's.
thanks for helping me confirming my options,
morbius
The Model I built was the C/3 with the 2 pressure release holes on the front of the cabinet. I later modified the cabinets and plugged the 2 front ports, heavily damped the interior sides after incorporating an extended port the top rear of the cabinet (the port area that was half the area of the driver) approximating a modified line tunnel to relieve back pressure. I could therefore adjust the excursion of the driver and subsequent airflow by increasing the dacron dampening and adding foam filters which I cut for the rear port. I cut off the low frequency signal with an external electronic crossover at 70Hz. The result with the rear venting was airier and more spacious midrange reproduction, better transients and the sonics became more 3 dimensional. Obviously without the crossover, I severely restricted the signal intput to the speakers rather than hyperextend the driver as the XMas was limited. But I digress...
Upon examination, the tweeters are ScanSpeak's; Model D2008/8512. The ScanSpeak P17WJ00, 6.500" midbase drivers will probably be my choice with little or no internal crossover mods to Bud's original design. I will also consider the Silver Flute W17RC38's.
thanks for helping me confirming my options,
morbius