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Sound Practices Article Reprints
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Altec Lansing 604-8H Crossover Revelations
Phase Correction for Altec Ferrite Duplexes
Altec Lansing 604-16X Test & Model Data
Altec Lansing 604-8K
Great Plains Audio 604
The 604E "Super Duplex"
Compression Driver Rear Loading Caps
Recommended Parts - Substitutions - Construction Hints
Sound Practices Article Reprints
604B Phase Correct Crossover
Altec Lansing 604B Phase Correct Crossover with MF EQ
Altec Lansing 604-16X Phase Correct Crossover
605A/B Phase Correct Crossover
Altec Lansing 605A/B Phase Correct Crossover with MF EQ
Vintage Altec 604-8H Crossover Schematic
Simplified 604-8H EQ Crossover
Altec Lansing 604-8H Phase-Correct Crossover with MF EQ
Vintage Altec Lansing N1500A Schematic
Vintage Altec Model 19 Crossover Schematic
Altec Stonehenge III (3577A) Cabinet plans
Model 19 Shop Working Prints
Vintage Altec Lansing Model 19 Cabinet Plans
Vintage Altec Speaker Mounting Template

Altec Lansing related article reprints from Sound Practices magazine

 

Follow link below to view the article from Sound Practices magazine entitled Altec “Voice of the Theatre” Speakers for Hi-Fi

 

Download SP Vol 1 #4 article

Follow link below to view the article from Sound Practices magazine entitled - Horns Revisited – The Exemplar Project

 

Download SP Vol 1 # 9 article

Both articles reprinted on this site with permission of Sound Practices magazine.