Hi, I've been finally enjoying a small 14 watt per channel EL84 tube amp from the 50's that I restored. It's been a long ride! But I know very little about speakers, and I would like some advice...
I have a small living room (12 X 15), a pathetic budget, and I listen to mostly jazz, classic rock, and acoustic music. I have been using some 90db efficient JBL MR28 bookshelf speakers that I bought in '95. Okay, you can stop laughing now.
The funny thing is that I have been auditioning speakers from kind friends and surprisingly the old jbl's hold their own. It's hard to justify spending the money for the consumer level garbage from Circuit City that sounds no better. I did listen to a pair of PSB Image Towers through a solid state NAD and thought they sounded pretty sweet. Anyway, the JBL's seem to lack some detail and sometimes the highs can be shrill and squeak-like.
From the JBL website the MR28's:
• Dimentions 19.5 X 10 X 10
• High Frequency 14mm Ti Dome Transducer
• Nominal Impedance: 8 ohms
• Woofer: 8" nitrile polymer fiber cone
• Frequency Response: 50Hz - 20kHz
• Crossover Frequency(ies): 3.5kHz
• Sensitivity: 90dB (1 watt/1 meter)
I was thinking of laying down my credit card down at parts express for the caps, inductors, and resistors. I am trying to get a schematic for the crossover from JBL to figure out appropriate values to replace the inductors. What do you guys think? Should I spring for some new tweeters and drivers? If so, any recommendations? Even though the tranducer has that funny shaped plate, the hole in the cabinet is a 2 3/8" circle. I hope that some one can look at these pics and such and go, "Yeah, replace this and that...Or "Nahh, don't bother..."
HERE IS A LINK TO A PAGE WITH THE CROSS OVER & SPEAKER PICS:
http://members.cox.net/ted007ted/jbl/index.htm
Thanks!
I have a small living room (12 X 15), a pathetic budget, and I listen to mostly jazz, classic rock, and acoustic music. I have been using some 90db efficient JBL MR28 bookshelf speakers that I bought in '95. Okay, you can stop laughing now.
The funny thing is that I have been auditioning speakers from kind friends and surprisingly the old jbl's hold their own. It's hard to justify spending the money for the consumer level garbage from Circuit City that sounds no better. I did listen to a pair of PSB Image Towers through a solid state NAD and thought they sounded pretty sweet. Anyway, the JBL's seem to lack some detail and sometimes the highs can be shrill and squeak-like.
From the JBL website the MR28's:
• Dimentions 19.5 X 10 X 10
• High Frequency 14mm Ti Dome Transducer
• Nominal Impedance: 8 ohms
• Woofer: 8" nitrile polymer fiber cone
• Frequency Response: 50Hz - 20kHz
• Crossover Frequency(ies): 3.5kHz
• Sensitivity: 90dB (1 watt/1 meter)
I was thinking of laying down my credit card down at parts express for the caps, inductors, and resistors. I am trying to get a schematic for the crossover from JBL to figure out appropriate values to replace the inductors. What do you guys think? Should I spring for some new tweeters and drivers? If so, any recommendations? Even though the tranducer has that funny shaped plate, the hole in the cabinet is a 2 3/8" circle. I hope that some one can look at these pics and such and go, "Yeah, replace this and that...Or "Nahh, don't bother..."
HERE IS A LINK TO A PAGE WITH THE CROSS OVER & SPEAKER PICS:
http://members.cox.net/ted007ted/jbl/index.htm
Thanks!