If you put your hand in front of the Supertweeter, then take it off, you can actually hear a difference in sound.
Hi,
The stands (and the rest) looks good Robcrx.
IIRC, the super tweeter is crossed in at 12kHz.
The stands (and the rest) looks good Robcrx.
IIRC, the super tweeter is crossed in at 12kHz.
Yes you are correct !
Pioneer HPM-100 - Wikipedia, the free encyclopedia
Enclosure: Bass-reflex bookshelf type
System: 4-speaker, 4-way system
Woofer: 12 inch (30 cm) carbon fiber blended cone type
Mid-Range: 4 inch (10 cm) cone type
Tweeter: 1-3/4 inch (4.5 cm) cone type
Super tweeter: High Polymer Molecular Film
Nominal Impedance: 8 ohms
Frequency Range: 30 to 25,000 Hz
Sensitivity: 92.5 dB/W (at 1m distance)
Maximum Input Power: 100 watts (“A” crossover) / 200 Watts (“B”,”C” crossovers)
Crossover Frequency: 300 Hz (Low-Mid), 4,000 Hz (Mid-High), 12,000 Hz (High-Superhigh)
Dimensions: 15-3/8(W) x 26-3/8(H) x 15-1/2(D) inches (390(W) x 670(H) x 393(D) millimeters)
Weight: 58 lb. 14 oz./26.7 kg
I remember servicing this kind of speakers (long ago). Sometimes there were sparks protruding from the super tweeters, scary stuff.
Open circuit just at the film connection and reactive discharge from the tweeter transformer made sparks possible.
Open circuit just at the film connection and reactive discharge from the tweeter transformer made sparks possible.
So a step up transformer for the high impedance tweeters.
Nice looking stands and nice looking system overall. Takes me back to the 70s.
Put some Credance on and crank it up!
David S.
Nice looking stands and nice looking system overall. Takes me back to the 70s.
Put some Credance on and crank it up!
David S.
Technics turntable is just about the only unit that could be other than Pioneer, right? 😀
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Rob, I'm late to the party, but, those are BEAUTIFUL stands! I'm tempted to make one just to sit out and admire as art work! (Did you use 2x8/4 on the left stand, and 2x6/4+4/4 on the right stand?)
Tom.
Tom.
The one thing which dramatically improved the Acoustic Research AR3a's was a set of stands. (The other thing which improved AR3a's was not putting potted plants on them!)
I had a shop make them for me. They are exact dimensions of the Speaker cabinets
JKstudio.ca |- woodworker / furniture designer / maker
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