Old School F5 by ZM

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#63
Re: Speaker set up for F5

sonidos said:


Choky, my wife would kill for speakers like that. That's right...she would kill me for bringing those into our living room.

How much for patent? Is the secret in the dimensions of the wings?

Maybe we can trade. I have an ancient map of lost Incan treasure that a nice gentleman sold me for 2 Peruvian Soles in a market in Lima. 😀
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naah ...... I'll send mucho res picture to you ,for free - there is no need to bribe me with treasure map ;

then you decide - either make big wall poster ditto from pic - hang it on the wall , and look at it instead of real sonidos :clown:

...... or carefully measure all needed ditto from pic , to reiterate that clever implementation of MOOB (Most Open Open Baffle) ..... than made it ......

let wifie choose what's best - first or second solution

:devily:
 

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#67
#69
Chockiii
I like your work ... looks somewhat like our ottala's HK dreck ... just better because of Papa, be praised, inside ... so to speak ...
Thanks for pics ... details are good to learn ...

BTW : and yes, Jaccco, my girl, is nutz :clown: But that's why we adore his vermeuleness ...


Manu?
 
#72
dejanm said:
Just to drop by to gratulate for this terrific work. Although F5 looks really solid my eyes stopped on these interesting speakers ... ZM can you post a link where we can learn more about this design ?
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boxes are ML TQWT + helmholtz , work of previous owner - Zoran Dimovski ( known as Zoran here )
drivers are RCA LC1B ; you can't find page dedicated to them , just bits 'n' pieces here and there ......

maybe one day I'll make small package of info I already have .... and I'm trying to find
 
#73
Zen Mod said:



boxes are ML TQWT + helmholtz , work of previous owner - Zoran Dimovski ( known as Zoran here )
drivers are RCA LC1B ; you can't find page dedicated to them , just bits 'n' pieces here and there ......

maybe one day I'll make small package of info I already have .... and I'm trying to find
Click to expand...


Choky,
Have you heard the smaller Sonidos?

I am still working with OB with Lowther and now Alpha-15A's.
Were you thinking about a design with 15A's?
 
#74
Tea-Bag said:



Choky,
Have you heard the smaller Sonidos?

I am still working with OB with Lowther and now Alpha-15A's.
Were you thinking about a design with 15A's?
Click to expand...


I didn't hear smaller Sonidos , but my friend (spavleski ) have them (SFR144) , in horn made according to Sonido plans .

difference between smaller and bigger - everything what you can expect , regarding sweetness , volume and bass ....... SPL , too .
but difference isn't dramatic in any case ...... most important is that they are of same ( high ) quality
regarding Alpha 15 - I have some personal xperience using theam as helper ( in tests with my ancient Iskras and similar drivers ) ; some results are HERE and some are in our local Serbian forum .

anyway - no matter what you do , consider G. Maynard's T bass network as a must ..... more quality than quantity-wise
 
#75
Zen Mod said:





anyway - no matter what you do , consider G. Maynard's T bass network as a must ..... more quality than quantity-wise
Click to expand...


ZM, I have been looking over this circuit. I assume you mean quality parts in circuit, as opposed to 1000VA trannies..
If your suggesting lower value parts, well I might be lost on the matter a bit, except some mention of the series choke being reduced with parallel drivers.

Sorry for OT post.
 
#76
Tea-Bag said:



ZM, I have been looking over this circuit. I assume you mean quality parts in circuit, as opposed to 1000VA trannies..
If your suggesting lower value parts, well I might be lost on the matter a bit, except some mention of the series choke being reduced with parallel drivers.

Sorry for OT post.
Click to expand...


😉

and ..... the question is ....... ?
 
#77
Zen Mod said:



😉

and ..... the question is ....... ?
Click to expand...


The answer maybe is 42. Totally off topic here.

The question is , what do you mean more quality than quantity?
Nicer parts, same value....I assume? The first post by Graham suggest building as stated for running one or two Alpha-15A's per channel.

The next question, all my own, could be a recommendation on what to cross the lowther dx4 @.

I am thinking maybe 6db FO is could here, with an L-PAD after.


Tea
 
#78
Tea-Bag said:


....

The question is , what do you mean more quality than quantity?
........

The next question, all my own, could be a recommendation on what to cross the lowther dx4 @.

I am thinking maybe 6db FO is could here, with an L-PAD after.


Tea
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quality/quantity - I meant that you'll gain more quality in bass department , than quantity ...... and I think that's good 😉

regarding FR + helper(s) ......... name of the game IS to not put any attenuating device in front of FR (main driver) ;

cross it in region of 300-35-Hz at 6db/oct .

anyway - read MJK's paper ....... again and again , if needed .......
he's Meister , I'm just a school boy

:clown:
 
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