4 ohm parameters vs 8 ohm |
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studio45
Old Croc Joined: 16 October 2007 Location: United Kingdom Status: Offline Points: 3863 |
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Posted: 01 April 2019 at 2:56pm |
This may well have been asked before but the search isn't bringing anything up, so - Is there a way to infer or calculate the T/S parameters of the 4 ohm version of a given driver, from the parameters for the 8 ohm version?
Just been trying to work out if I should get 4 ohm bass drivers for the mobile rig - but having trouble doing any simulations, as only B+C seem to correctly list the specs of their 4 ohm offerings, whereas everyone else just copies and pastes the specs from the 8 ohm version! B+C being at the very top end of my possible budget... So can they be worked out, or would only the mfr know?
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Studio45 - Repairs & Building Commotion Soundsystem -Mobile PA
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DMorison
Old Croc Joined: 14 March 2007 Location: Aberdeen Status: Offline Points: 1647 |
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Best bet is to contact the manufacturer, as the process of changing the coil wire thickness/number of turns to change the nominal impedance may end up changing other parameters like moving mass and motor strength.
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Crashpc
Registered User Joined: 26 February 2008 Location: Czech Republic Status: Offline Points: 463 |
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no, it is not possible to count. Different impedance driver can be... Well, completely different...
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Nikon and Canon people should not be married to each other. Why did you let this happen?
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odc04r
Old Croc Joined: 12 July 2006 Location: Sarfampton Status: Offline Points: 5483 |
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As said, could be the same if engineered to be or could be completely different depending on how voicecoil wire is wound between driver versions.
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Elliot Thompson
Old Croc Joined: 02 April 2004 Location: United States Status: Offline Points: 5172 |
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If you already own the driver, you can measure it yourself using ARTA/LIMP or REW. Even published manufactures TS Parameters are subject to change based on the materials they upgrade to if the driver has a high failure rate in which, can be rectified. There is no reason to guess what the TS Parameters is any more when there a programs that will allow you measure them yourself. I might add, all drivers TS Parameters will change from the manufactures published specifications once the driver is broken in. Best Regards,
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Elliot Thompson
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