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Multi-Way Conventional loudspeakers with crossovers

Need some guidance and suggestions for first DIY speaker project
Need some guidance and suggestions for first DIY speaker project
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Old 11th September 2017, 12:20 PM   #11
giralfino is offline giralfino  Italy
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I've decided that I want to make 3-way Bass, mid, tweeter based speakers.
Then build the Tarkus (instead of the Carrera).

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They used to be called Europe Audio and here is a thread spanning 6 years of experiences dealing with them:
Europe Audio - dreadful experience
I don't want to be an advocate of them, but once you know what are their shortcomings everything works. The only very annoying thing it that they answer to emails very rarely if at all, I got an answer only for a defective unit. In short, buy only what they have in stock. If it is not in stock, if you are not very lucky you can wait for a very long time.

Ralf
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Old 11th September 2017, 02:02 PM   #12
Attila I is offline Attila I  Germany
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hi ExponentFlame11,

you might have a look at the pages from iris strassacker or intertechnik here in germany
they have all the stuff for speaker building (even cabinet- and xover-calculator).
have fun
A.
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Old 11th September 2017, 03:28 PM   #13
Charles Darwin is offline Charles Darwin  United Kingdom
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I've ordered from Strassacker before without any problems whatever but their international postage prices are a bit high unless you order a lot.

Within the UK I've used Lean Business and Falcon Acoustics both of whom are excellent but I have no idea how they are internationally.
Lean Business - Outstanding Audio, Guitar Speakers and PA Speakers specialist

Falcon Acoustics | The Leading DIY Speaker Parts and Kit Supplier since 1972
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Old 11th September 2017, 05:26 PM   #14
ExponentFlame11 is offline ExponentFlame11  Finland
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Originally Posted by Attila I View Post
hi ExponentFlame11,

you might have a look at the pages from iris strassacker or intertechnik here in germany
they have all the stuff for speaker building (even cabinet- and xover-calculator).
have fun
A.
Okay thanks! ^_^ Gonna check it out(:


I really like treble of my Klipsch RF-52II even though they are too harsh for some ears and bass is really good for 5.25 inchers, if I was to build horn based speakers someday in the future would it need more or better resistors to get loudness even between the woofer and tweeter.

Are there any big differences between say 50 8" drivers vs 150 it terms of quality of bass reproduction considering they are in equally good enclosures and about same frequency response?
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Old 11th September 2017, 06:43 PM   #15
planet10 is online now planet10  Canada
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Need some guidance and suggestions for first DIY speaker project
Quote:
RMS wattage
Somthing to be pretty much ignored, as usually a waste of time.

dance
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Old 11th September 2017, 08:19 PM   #16
ExponentFlame11 is offline ExponentFlame11  Finland
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Originally Posted by planet10 View Post
Somthing to be pretty much ignored, as usually a waste of time.

dance
Okay, so is it just inductor coil's size? (bigger size = more cooling area = lower resistance = better wattage before overheating)?
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Old 11th September 2017, 08:27 PM   #17
planet10 is online now planet10  Canada
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Need some guidance and suggestions for first DIY speaker project
Inductor coil size is mostly associated with the coils DCR (resistance). The wire can handle any input power you are likely to feed them

dave
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Old 11th September 2017, 08:37 PM   #18
ExponentFlame11 is offline ExponentFlame11  Finland
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Originally Posted by planet10 View Post
Inductor coil size is mostly associated with the coils DCR (resistance). The wire can handle any input power you are likely to feed them

dave
Alrighty thanks! Good to know
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Old 12th September 2017, 03:43 AM   #19
keilau is offline keilau  United States
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Originally Posted by Charles Darwin View Post
I've ordered from Strassacker before without any problems whatever but their international postage prices are a bit high unless you order a lot.

Within the UK I've used Lean Business and Falcon Acoustics both of whom are excellent but I have no idea how they are internationally.
Lean Business - Outstanding Audio, Guitar Speakers and PA Speakers specialist

Falcon Acoustics | The Leading DIY Speaker Parts and Kit Supplier since 1972
For loudspeaker project, I will stick with regional sellers. Shipping overseas is not practical because of the weight and the resultant cost.

Falcon Acoustics is a well respected vendor who can help its customer technically some times. I am in the US, my experiences with Falcon and Wilmslow were positive, but limited to crossover and parts.
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Old 12th September 2017, 04:24 PM   #20
keilau is offline keilau  United States
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Originally Posted by ExponentFlame11 View Post
Okay, so is it just inductor coil's size? (bigger size = more cooling area = lower resistance = better wattage before overheating)?
Inductor larger than 0.5 mH is not going to be cheap. But "1.50mH 0.210ohm inductor is over 50" is too excessive. So go shop in UK.

For even moderate inductance (1-5 mH for crossover) range, air coil inductor will be expensive, bulky and heavy. DC resistance can be high except for very large magnetic wire gauge (14 or smaller#). Avoid Chinese sellers on eEbay because they often use ridiculously small gauge wires.

The European speaker builder prefers Ferrite core inductor. In the US, laminated iron core is more popular for high end. They are not cheap, but still affordable if you want good sound.

The problem of higher wattage inductor is NOT about overheating. inductor with ferrite or iron core can saturate (the current induced magnetic flux) at high power making the inductor become non-linear, thus, the sound distorted. For my project, I use "15 AWG Sledgehammer Steel Laminate Inductors" from Madisound and am very happy with the sound. The Sledgehammer inductor can handle over 500 watts before I start worrying about saturation.

Don't worry about trying different component and trust you ears. Other's experience are helpful to you. But you are the ultimate judge.
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