The Mozambique

hongrn · 21st October 2006, 06:01 AM

Just want to share some pics of the new bookshelf pair I completed today. This is my first time using ribbon tweeters, so it took over 2 weeks to fine tune the crossover, with a whole bunch of help from the guys on the PE forum. Vented system, crossed at 2,600Hz, low pass is a LR2, high pass is a LR4, and 3dB BSC. F3 is around 60Hz. 3/4" MDF through out, and veneered with African Mozambique paper-backed wood veneer. Wild patterns, don't you think? How does it sound? Beautiful. Very different than dome tweeters, so I'm starting to understand why some people find them mesmerizing.

Hong

hongrn · 21st October 2006, 06:02 AM

More pics of the Mozambique.

Geek · 21st October 2006, 11:01 AM

Very nice work!

Was the design inspired by the RAV-1?

Salas · 21st October 2006, 01:28 PM

I see that your frequency response is compensating for even room power response more or less. Should be sounding fine. Did you take that into account or you ended up in this response shape by ear?

Pano · 22nd October 2006, 04:04 AM

Nice work!!

"Look Ma, no screws." (How does he do that?)

hongrn · 22nd October 2006, 05:49 AM

Hi Geek, this is my own design, since I don't know who makes the RAV-1. May be a subconscious thing, who knows...

Salas, I didn't even think about the room response to tell you the truth. I had an ugly -5dB dip at the crossover frequency when I had both the low and high passes crossed with a LR2. The dip didn't go away until I had the high pass crossed with a LR4, thus the resulting response plot. Sounds a lot better without the dip for sure.

Yeah, the "no screws" pics were taken when I just dropped the drivers into the recesses for testing. Good eyes, panomaniac!

Hong

21st October 2006, 06:01 AM	#1
hongrn diyAudio Member Join Date: Mar 2005 Location: Placentia, CA, USA	The Mozambique Just want to share some pics of the new bookshelf pair I completed today. This is my first time using ribbon tweeters, so it took over 2 weeks to fine tune the crossover, with a whole bunch of help from the guys on the PE forum. Vented system, crossed at 2,600Hz, low pass is a LR2, high pass is a LR4, and 3dB BSC. F3 is around 60Hz. 3/4" MDF through out, and veneered with African Mozambique paper-backed wood veneer. Wild patterns, don't you think? How does it sound? Beautiful. Very different than dome tweeters, so I'm starting to understand why some people find them mesmerizing. Hong

22nd October 2006, 04:04 AM	#5
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	Nice work!! "Look Ma, no screws." (How does he do that?) __________________ Take the Speaker Voltage Test!

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21st October 2006, 06:02 AM	#2
hongrn diyAudio Member Join Date: Mar 2005 Location: Placentia, CA, USA	More pics of the Mozambique.

21st October 2006, 11:01 AM	#3
Geek diyAudio Member Join Date: Sep 2004	Very nice work! Was the design inspired by the RAV-1?

21st October 2006, 01:28 PM	#4
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	I see that your frequency response is compensating for even room power response more or less. Should be sounding fine. Did you take that into account or you ended up in this response shape by ear?

22nd October 2006, 05:49 AM	#6
hongrn diyAudio Member Join Date: Mar 2005 Location: Placentia, CA, USA	Hi Geek, this is my own design, since I don't know who makes the RAV-1. May be a subconscious thing, who knows... Salas, I didn't even think about the room response to tell you the truth. I had an ugly -5dB dip at the crossover frequency when I had both the low and high passes crossed with a LR2. The dip didn't go away until I had the high pass crossed with a LR4, thus the resulting response plot. Sounds a lot better without the dip for sure. Yeah, the "no screws" pics were taken when I just dropped the drivers into the recesses for testing. Good eyes, panomaniac! Hong

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