labs

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I guess you're right they probably could have done better with something like the HD 15s for midbass and have those play down to 80 Hz, then have the Lab horns take over.. I admit, the labs are quite capable of being punchy though.... I do like that...

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
da_audio_don Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 24 November 2007 Location: United States Status: Offline Points: 90	Post Options Post Reply Quote da_audio_don Report Post Thanks(0) Quote Reply Posted: 30 November 2007 at 3:17pm
	I guess you're right they probably could have done better with something like the HD 15s for midbass and have those play down to 80 Hz, then have the Lab horns take over.. I admit, the labs are quite capable of being punchy though.... I do like that...

_djk_ Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 5992	Post Options Post Reply Quote _djk_ Report Post Thanks(0) Quote Reply Posted: 01 December 2007 at 12:10am
	"or did i understand this wrong???" You got it exactly right. You need to be one wavelength away to make the transition from sound pressure (which you can measure) to velocity (which you can hear). For mids and highs this is a very short distance, for bass it is not.
	djk

Mark James Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 January 2006 Location: rig side Status: Offline Points: 5306	Post Options Post Reply Quote Mark James Report Post Thanks(0) Quote Reply Posted: 01 December 2007 at 12:13am
	nice for once i read something and actualy vaguely understood it, i take it thats a rule of sound, ie doesnt only aply to horns and not even just speakers. if you stand too close to any sound source, say a falling brick that just happens to have a very low frequency sound when it hits the floor [not likely but stay with me a second] you technicaly wouldnt hear the fundamental if it was too low a frequency and you were too close.
	insert silly sentence here

_djk_ Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 23 November 2004 Location: United States Status: Offline Points: 5992	Post Options Post Reply Quote _djk_ Report Post Thanks(0) Quote Reply Posted: 01 December 2007 at 10:29am
	Actually, it applies to horns only. A horn is a transformer. It transforms pressure in the throat to velocity at the mouth. Direct radiators just beat the air with velocity, that's why they have bass up close. Unless you have a straight truck and a ramp, real bass horns are not practical. These days I use direct radiators below 150hz.
	djk

Mark James Members Profile Send Private Message Find Members Posts Add to Buddy List Old Croc Joined: 15 January 2006 Location: rig side Status: Offline Points: 5306	Post Options Post Reply Quote Mark James Report Post Thanks(0) Quote Reply Posted: 01 December 2007 at 12:39pm
	aha, see i didnt fuly understand it then. thanks i do now lol.
	insert silly sentence here