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Multi-Way Conventional loudspeakers with crossovers

Fast, fun, Inexpensive OB project
Fast, fun, Inexpensive OB project
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Old 7th April 2013, 02:55 PM   #871
albertli is offline albertli  Canada
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Default POLARITY

Quote:
Originally Posted by John Bsuch View Post
Please find the current MAS Ultra schematic. Enjoy!
John,

My ultra is coming up soon n the parts from pe is on its way to me. The schematic shows the polarity of the tweeter is inverted - different from the original post. is it the design to date ???

Albert
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Old 7th April 2013, 03:28 PM   #872
Rudolf is offline Rudolf  Germany
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Quote:
Originally Posted by AndrewT View Post
Qts of post867 looks to be very high @ 0.74.
Would that make it very suitable for OB?
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Originally Posted by skorpion View Post
... In Europe the budget-choice for OB would be A&D R1524 from: A&D Audio Datenblatt costing 65 EUR today from HIGH-TECH-HIFI. I have compared A&D R1524 to Eminence Alpha15 and Acoustic Elegance IB15 which I have all three and the Alpha15 is by far the worst performer of them. The A&D R1524 was used in my: 'Volks-OB' without EQ and went down to about 40 Hz level.

Played side by side it is striking how similar AE IB15 and A&D R1524 sound giving a tight, clean bass of exellent quality.

/Erling
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Old 8th April 2013, 01:33 AM   #873
John Busch is offline John Busch  United States
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Default Polarity

Albertli

The negative polarity for the tweeter is correct. The phase tracking is better and the current issue of the Vifa driver works much better with the reverse polarity configuration. John
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Old 8th April 2013, 03:29 AM   #874
albertli is offline albertli  Canada
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John,
Thanks
I'm still waiting for the parts, will post pics after finished.
Albert
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Old 8th April 2013, 06:01 PM   #875
woodsart is offline woodsart  United States
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Hello everyone,

How about Marantz receivers or particularly the PM8003 2 channel 75 wpc For the original Manzanita? I have a small office room with at least 24" from the corner/side walls.

Thanks!
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Old 11th April 2013, 03:27 AM   #876
ruinevil is offline ruinevil  United States
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Do the Manzanitas have problems with poorly mastered, overly loud rock and metal?
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Old 11th April 2013, 02:57 PM   #877
John Busch is offline John Busch  United States
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Default Marantz & Metal

Marantz 75 wpc receiver. For most listeners, in most domestic environments the Marantz should do just fine.

As for heavy metal music, with 100 clean wpc available, a pair of Manzanita's will deliver about 100 db of peak output from about 40 hz up. Or put another way, about 93-96 db continuous out put at a typical listening distance in a typical residential setting. Suspect that is not enough if you like it really loud!

Hope the above is of some help. John
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Old 24th April 2013, 02:58 AM   #878
albertli is offline albertli  Canada
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Default Ultra

My speakers are slowly coming. Hope to put them together in the coming weekend.
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Old 24th April 2013, 03:10 AM   #879
Pano is offline Pano  United States
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Fast, fun, Inexpensive OB project
Great! Keep us informed.
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Old 27th April 2013, 05:22 AM   #880
surface tension is offline surface tension  United States
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John,

Will you be bringing the Ultra's to LSAF this year, he asks hopefully?
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