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tall skinny speakers
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<blockquote data-quote="Timo Ulkuniemi" data-source="post: 125819" data-attributes="member: 1978"><p>Re: tall skinny speakers</p><p></p><p>Hello</p><p></p><p></p><p>I wrote to Ivan on 01 23 2014 about this thread - unfortunately he never answered - but while tis is a VERY interesting topic, which many of us must have experienced, I will put a copy of my message here for everybody to see - I am planning to build some "column-speakers" of the parts sitting on the shelves...</p><p></p><p>Hopefully new fuel to discussion.</p><p></p><p>Ivan - sorry - perhaps you never received my private message...</p><p></p><p></p><p></p><p></p><p> [h=2]Speaker radiation angle vs instrument radiation angle[/h] <p style="margin-left: 20px"> Hello from Finland</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">I might have written you before - I am in Finland and we have Servodrive speakers including ContraBass. Tom found replacement motors on eBay for us and I bought them - problem solved.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">I was reading the thread of tall skinny speakers last night. You were asking about how the high-frequency control was achieved - so far nobody has answered.</p> <p style="margin-left: 20px">I share your notion, that with that kind of design the high frequencies must be a cardioid ( round pyramid ) that gets wider towards lower frequencies - thus no pattern control at all.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">However the guy having used them on his gigs was really pleased with his speakers after using them for months.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">So I came to think about properties of instruments - we have direct sound of i.e. a cello and reflected sound of the room. Now the reflected sound obviously depends of at lest two factors - radiation pattern of cello and reflection properties of the room. If the sum of all parts is pleasing to listener, we have a winner...</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">Same must apply for different sound systems - I am familiar with Danley Synergy horn - I have heard some home-made and even considered building some myself ( reason being I have hundreds of speaker-elements on shelve and have to figure a way to get rid of them ). Anyway - synergy horn must be great for aiming music on certain area with minimum spill outside and maximum fidelity inside. If we are happy with just maximum fidelity inside and do not care about the sound in the outside area, we might well get along i.e. "tall skinny" - or if the reflections in the room HAPPEN to be favorable for that kind speaker system.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">For my gigs - there seems to be people hanging around on most gigs, that could not care less for what´s going on on stage - they are there because their buddies are there - kind of social event - they hang on edges of area and make their own noise..... Do they care about how it sounds ?</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">When I started some 30 years ago I had a system with dual 15 JBL 2225H woofer and four 8 JBL 2118J in line for mids plus JBL 2445J with 2380 horn for highs. It sounded fairly good in most places although the pattern control on that must have been more or less haywire also. Band was happy - audience was happy and I was happy - still after more then twenty years people pop up now and then and tell me how good it was back then.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">To finish this long jargon I quote late finnish inventor Tapio Köykkä ( ortoperspekta - TIM - etc ) - he wrote some fifty years ago : "If measurements are good but it does not sound good we either do not measure enough many things or we are measuring wrong things." ( My free translation.... ) I also used to work at Studer in Switzerland 1972-73 and I do know the importance of measuring things to build quality products like we did way back then.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">Thank you for your time.</p> <p style="margin-left: 20px"></p> <p style="margin-left: 20px">Nuuska </p></blockquote><p></p>
[QUOTE="Timo Ulkuniemi, post: 125819, member: 1978"] Re: tall skinny speakers Hello I wrote to Ivan on 01 23 2014 about this thread - unfortunately he never answered - but while tis is a VERY interesting topic, which many of us must have experienced, I will put a copy of my message here for everybody to see - I am planning to build some "column-speakers" of the parts sitting on the shelves... Hopefully new fuel to discussion. Ivan - sorry - perhaps you never received my private message... [h=2]Speaker radiation angle vs instrument radiation angle[/h] [INDENT] Hello from Finland I might have written you before - I am in Finland and we have Servodrive speakers including ContraBass. Tom found replacement motors on eBay for us and I bought them - problem solved. I was reading the thread of tall skinny speakers last night. You were asking about how the high-frequency control was achieved - so far nobody has answered. I share your notion, that with that kind of design the high frequencies must be a cardioid ( round pyramid ) that gets wider towards lower frequencies - thus no pattern control at all. However the guy having used them on his gigs was really pleased with his speakers after using them for months. So I came to think about properties of instruments - we have direct sound of i.e. a cello and reflected sound of the room. Now the reflected sound obviously depends of at lest two factors - radiation pattern of cello and reflection properties of the room. If the sum of all parts is pleasing to listener, we have a winner... Same must apply for different sound systems - I am familiar with Danley Synergy horn - I have heard some home-made and even considered building some myself ( reason being I have hundreds of speaker-elements on shelve and have to figure a way to get rid of them ). Anyway - synergy horn must be great for aiming music on certain area with minimum spill outside and maximum fidelity inside. If we are happy with just maximum fidelity inside and do not care about the sound in the outside area, we might well get along i.e. "tall skinny" - or if the reflections in the room HAPPEN to be favorable for that kind speaker system. For my gigs - there seems to be people hanging around on most gigs, that could not care less for what´s going on on stage - they are there because their buddies are there - kind of social event - they hang on edges of area and make their own noise..... Do they care about how it sounds ? When I started some 30 years ago I had a system with dual 15 JBL 2225H woofer and four 8 JBL 2118J in line for mids plus JBL 2445J with 2380 horn for highs. It sounded fairly good in most places although the pattern control on that must have been more or less haywire also. Band was happy - audience was happy and I was happy - still after more then twenty years people pop up now and then and tell me how good it was back then. To finish this long jargon I quote late finnish inventor Tapio Köykkä ( ortoperspekta - TIM - etc ) - he wrote some fifty years ago : "If measurements are good but it does not sound good we either do not measure enough many things or we are measuring wrong things." ( My free translation.... ) I also used to work at Studer in Switzerland 1972-73 and I do know the importance of measuring things to build quality products like we did way back then. Thank you for your time. Nuuska [/INDENT] [/QUOTE]
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