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Altec Lansing 604-8H Duplex Speaker Manual

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Comments to date: 7. Page 1 of 1. Average Rating:
ccrespo 8:25pm on Friday, September 10th, 2010 
These speakers kick butt! best darn speakers I have ever owned! A little bigger then I thought they would be.They look sharp as hell. Amazing sound !!...
ratlung 3:15pm on Friday, August 27th, 2010 
I own several sets of these speakers. Use them home and work. Small class room. Price is right. The best of all is no extra power cords to work with.
alexis 4:54pm on Friday, August 20th, 2010 
Added to my Dell Dimention 3000 after original speakers fried. Good looks and perform very well. For the price, I was very impressed with these speakers.
seth 1:17am on Monday, August 2nd, 2010 
I was looking online at various speakers, one of which was these. I enjoy these speakers. They look great, and sound very good. I especially like the multiple inputs that allow for infinite flexibility in usage. TVs,...
nurdiw 6:10pm on Tuesday, June 22nd, 2010 
It reproduces sounds so clear you would think you were in your own studio instead of just using your computer. Compact Design","Easy To Use". Not for Large rooms. But a helluva buy for the dorm. The Bass sound Great! And clear!! Great Bang for my Buck!! Compact Design","Easy To Use". These are good speakers if one is interested in listening to music in a small room setting or sitting in somewhat close proximity to the speakers.
JamesonKlark777 6:36am on Friday, June 11th, 2010 
I owned an Altec Lansing 2.1 speaker before, so I know what to expect. I also owned Edifier USB al-cheapo speaker before tossing it away. When you are dealing with 2.1 speaker systems you inevitably have to listen to many low quality speakers that have annoying.
kalesin 5:08am on Sunday, May 16th, 2010 
Not a big deal, but might want to take into account what side your computer sits on your desk when orienting. A good set of speakers at a reasonable price.

Comments posted on are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.




Gary R. Jones
1000 W. Wilshire Blvd. Suite 360 Oklahoma City, OK 73116 Tel: 405-848-3108 Fax: 405-848-3217

604's Forever!

The first production 604 appeared in 1944 and quickly became the industry standard. The 604 is a "Duplex" or coaxial loudspeaker utilizing a 15" woofer and a 1" throat HF compression driver (1.75" voice-coil). The HF magnet mounts directly to the back of the woofer magnet and the throat of the HF driver extends through the center of the woofer to a small horn. This basic configuration has remained unchanged for 50 years.
604 B,C,D,E 16 ohm Alnico Circumferential Multicellular 15.2" Rear Mount N-1000-B (B) N-1600-A(C,D) N-1600-A (E) 1000 Hz (B) 1600 Hz (C,D) 1500 Hz (E) 30W (B) 35W (C,D,E) 604-8G 8 ohm Alnico Circumferential Multicellular 16" Front or Rear Mtg. "604-8G" LF = 12 dB/oct HF = 18 dB/oct 1500 Hz 604-8H 8 ohm Alnico Tangerine Mantaray 16" Front or Rear Mtg. "604-8H" LF = 12 dB/oct HF = 18 dB/oct 1500 Hz 604-8K, L 8 ohm Ferrite Tangerine Mantaray 16" Front or Rear Mtg. "604-8K" (K) N1500-8A (L) LF = 12 dB/oct HF = 18 dB/oct 1500 Hz
System Impedance Magnet HF Phase Plug Horn Type Woofer Frame

Crossover Network

Crossover Frequency Power Rating
Notes: 604 B,C,D,E 604-8G 604-8H 604-8K 604-8L

65W Pink Noise

75W Pink Noise
= Only small differences in construction. The B/C used a true multi-cell horn and the D/E used a sectoral-style horn with divider vanes. = New crossover and diaphragm assembly improved power handling, delivered smoother mid-range, and exhibited lower distortion = New Tangerine phase plug and Mantaray horn improved high frequency coverage. New crossover network offered HF and MF controls. = New magnet offered same flux density as Alnico. Improved adhesives resulted in higher power handling. = Same as K with new crossover network, hand-built for Altec Lansing Professional by Great Plains Audio, USA



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