ditusa

Responses from ditusa

A friend told me JBL DD67000 is actually very bad speaker, is it true?
The 9 volt batteries keep a constant charge on the capacitors in the crossover. Similar to a class A amp where the transistors are always on. (I think this idea came from Ed Meitner.) 
SET on JBL Everests - Mouse breeding an elephant?
The 9 volt batteries keep a constant charge on capacitors in the crossover. Similar to a class A amp were the transistors are always on. 
High end high quality int. amp for low level listening
’’Maybe you’re right. But there would have to be a reason why the sounded better.’’Because efficiency and sensitivity are not the same. See: tech note below page 1 section C:/www.lansingheritage.org/html/jbl/reference/notes/tech1-3a.htm 
High end high quality int. amp for low level listening
@dcevans,Agreed! 
Any Freya Plus owners in Denver?
I agree with @jperry 
Low-sensitivity speakers — What's special about them?
Mr. Augspurger still designing horn monitors today!http://proaudiodistribution.com/augspurger-monitors/http://www.lansingheritage.org/images/jbl/reference/technical/efficiency/page01.jpg 
High end high quality int. amp for low level listening
@celestial__sound ''because 90% of the time I listen at ~60dBs SPL.''At 60dB SPL your speakers are not getting 1 watt or 2 watts or 10 watts, in fact they are not even getting 1/2 watt. At 60dB SPL your speakers are getting milliwatts from the amp... 
Low-sensitivity speakers — What's special about them?
@atmasphere Agreed! 
Low-sensitivity speakers — What's special about them?
This gentleman has a handle on it he knew aboutthe importance of speaker efficiency back in 1960. Wow!http://www.lansingheritage.org/images/jbl/reference/technical/efficiency/page01.jpghttp://www.lansingheritage.org/html/jbl/reference/technical/... 
My Experience With Tekton
Agreed! 
My Experience With Tekton
''Focusing solely on the stated sensitivity of a speaker is an incomplete view/assessment. You have to also be aware of a speaker’s impedance measurements and impedance characteristics and behavior as a load. Amplifiers have to deal with this as... 
High end high quality int. amp for low level listening
More efficient and higher impedance speakers make a lot more sense than a more powerful amp.  
My Experience With Tekton
@phcollie,Agreed! 
Tube Amp recommendations to drive Klipsch Forte III
+2 Quicksilver  
My Experience With Tekton
@phcollie, See the technical manual of my speakers in the link below: JBL explains how they measure their speakers and arrive at their specifications. See the last page. Also, note efficiency is not the same as sensitivity. Hope that helps.http://...