CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 9 minutes ago, Crankysoldermeister said: How much more sensitive is the tweeter to the other driver? Not sure. Measuring with my ears at this point. Quote Link to comment Share on other sites More sharing options...
Thaddeus Smith Posted January 15, 2022 Share Posted January 15, 2022 4 minutes ago, CECAA850 said: Not sure. Measuring with my ears at this point. Ah, so doomed from the start. 1 Quote Link to comment Share on other sites More sharing options...
Deang Posted January 15, 2022 Share Posted January 15, 2022 What do you know about the tweeter? What is it? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 4 minutes ago, Crankysoldermeister said: What do you know about the tweeter? What is it? EV DH1A driver on an EV horn. Quote Link to comment Share on other sites More sharing options...
Deang Posted January 15, 2022 Share Posted January 15, 2022 Two-way? https://www.fullcompass.com/common/files/17291-DH1ASpecSheets.pdf Compare the impedance plots. Notice how similar they look with the exception of where on the plot they are. Could be a nominal 8 ohm tweeter depending on where the crossover point is. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 23 minutes ago, Crankysoldermeister said: Two-way? https://www.fullcompass.com/common/files/17291-DH1ASpecSheets.pdf Compare the impedance plots. Notice how similar they look with the exception of where on the plot they are. Could be a nominal 8 ohm tweeter depending on where the crossover point is. Top horn assembly labeled 6 ohm, driver measures 4. Quote Link to comment Share on other sites More sharing options...
babadono Posted January 15, 2022 Share Posted January 15, 2022 so it looks like EV says its "nominal" 8 ohms? Or am I seeing/thinking wrong? Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 4 minutes ago, babadono said: so it looks like EV says its "nominal" 8 ohms? Or am I seeing/thinking wrong? Horn assembly says 6 ohm. Driver measures 4. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 5 minutes ago, babadono said: so it looks like EV says its "nominal" 8 ohms? Or am I seeing/thinking wrong? Maybe you're looking at the speaker as a whole? Quote Link to comment Share on other sites More sharing options...
babadono Posted January 15, 2022 Share Posted January 15, 2022 I was looking directly at the data Dean(Mr.Blowtorch) posted. Quote Link to comment Share on other sites More sharing options...
Curious_George Posted January 15, 2022 Share Posted January 15, 2022 What is your crossover point? Quote Link to comment Share on other sites More sharing options...
OO1 Posted January 15, 2022 Share Posted January 15, 2022 2 hours ago, CECAA850 said: That's the company in England I e mailed. Carl , ask them to quote you the shipping via Royal Mail /the rates are lower , Service is about 1 Week -10 days to the USA - Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 22 minutes ago, babadono said: I was looking directly at the data Dean(Mr.Blowtorch) posted. I csnt open it on my phone. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 11 minutes ago, Curious_George said: What is your crossover point? 500 hz 12db slope. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 18 minutes ago, RandyH said: Carl , ask them to quote you the shipping via Royal Mail /the rates are lower , Service is about 1 Week -10 days to the USA - Ok Quote Link to comment Share on other sites More sharing options...
Curious_George Posted January 15, 2022 Share Posted January 15, 2022 12 minutes ago, CECAA850 said: 500 hz 12db slope. Extrapolating data from the DH1A SPEC sheet, it looks like the impedance at 500Hz is @ 12 Ohms. However, the impedance may be different if you are using a horn that is not an HP9040. Assuming the impedance of your driver and horn is 12 Ohms the L-Pad chart I posted will not be valid. I’ll have to post another one for 12 Ohms. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 15, 2022 Author Share Posted January 15, 2022 4 minutes ago, Curious_George said: Extrapolating data from the DH1A SPEC sheet, it looks like the impedance at 500Hz is @ 12 Ohms. However, the impedance may be different if you are using a horn that is not an HP9040. Assuming the impedance of your driver and horn is 12 Ohms the L-Pad chart I posted will not be valid. I’ll have to post another one for 12 Ohms. I'm using the stock 9040. Quote Link to comment Share on other sites More sharing options...
CECAA850 Posted January 16, 2022 Author Share Posted January 16, 2022 2 hours ago, Thaddeus Smith said: Ah, so doomed from the start. Yes. I need to do a better job of learning to imagine how something sounds by looking at graphs. 1 Quote Link to comment Share on other sites More sharing options...
henry4841 Posted January 16, 2022 Share Posted January 16, 2022 From what I am reading here I would just purchase a pair of 8 ohm L-pads at Parts Express. Impedance of a speaker can vary a lot when in use. 2 Quote Link to comment Share on other sites More sharing options...
Curious_George Posted January 16, 2022 Share Posted January 16, 2022 Quote Link to comment Share on other sites More sharing options...
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