motokok Member Joined 2019 2022-09-01 10:47 pm #1 2022-09-01 10:47 pm #1 The Audax PR240Z0 woofer looks strange cause the impedance plot in the datasheet shows a negative impedance plot from 50-1,500hz? Am I reading it wrong? Attachments PR240Z0-8.pdf PR240Z0-8.pdf 220.4 KB · Views: 87 D Davey Account Closed Joined 2001 2022-09-01 10:54 pm #2 2022-09-01 10:54 pm #2 Somebody added some incorrect labeling to the right side of that graph. Dave. Reactions: GM AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:08 pm #3 2022-09-01 11:08 pm #3 It looks like labelling for phase. D Davey Account Closed Joined 2001 2022-09-01 11:45 pm #4 2022-09-01 11:45 pm #4 AllenB said: It looks like labelling for phase. Click to expand... Except there's no phase info on that plot. As I said, the labeling is incorrect. Dave. Reactions: AllenB AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:54 pm #5 2022-09-01 11:54 pm #5 Indeed. Here's the PR240M0. In case it might give some insight into the scale. motokok Member Joined 2019 2022-09-02 1:35 am #6 2022-09-02 1:35 am #6 Thanks - thought I was going mad - I'll try to correct the scale. motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB You must log in or register to reply here. Share: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link Home Loudspeakers Multi-Way Negative impedance from Audax datasheet? PR240Z0 10"
The Audax PR240Z0 woofer looks strange cause the impedance plot in the datasheet shows a negative impedance plot from 50-1,500hz? Am I reading it wrong?
D Davey Account Closed Joined 2001 2022-09-01 10:54 pm #2 2022-09-01 10:54 pm #2 Somebody added some incorrect labeling to the right side of that graph. Dave. Reactions: GM AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:08 pm #3 2022-09-01 11:08 pm #3 It looks like labelling for phase. D Davey Account Closed Joined 2001 2022-09-01 11:45 pm #4 2022-09-01 11:45 pm #4 AllenB said: It looks like labelling for phase. Click to expand... Except there's no phase info on that plot. As I said, the labeling is incorrect. Dave. Reactions: AllenB AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:54 pm #5 2022-09-01 11:54 pm #5 Indeed. Here's the PR240M0. In case it might give some insight into the scale. motokok Member Joined 2019 2022-09-02 1:35 am #6 2022-09-02 1:35 am #6 Thanks - thought I was going mad - I'll try to correct the scale. motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB You must log in or register to reply here. Share: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link
AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:08 pm #3 2022-09-01 11:08 pm #3 It looks like labelling for phase. D Davey Account Closed Joined 2001 2022-09-01 11:45 pm #4 2022-09-01 11:45 pm #4 AllenB said: It looks like labelling for phase. Click to expand... Except there's no phase info on that plot. As I said, the labeling is incorrect. Dave. Reactions: AllenB AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:54 pm #5 2022-09-01 11:54 pm #5 Indeed. Here's the PR240M0. In case it might give some insight into the scale. motokok Member Joined 2019 2022-09-02 1:35 am #6 2022-09-02 1:35 am #6 Thanks - thought I was going mad - I'll try to correct the scale. motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB You must log in or register to reply here. Share: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link
D Davey Account Closed Joined 2001 2022-09-01 11:45 pm #4 2022-09-01 11:45 pm #4 AllenB said: It looks like labelling for phase. Click to expand... Except there's no phase info on that plot. As I said, the labeling is incorrect. Dave. Reactions: AllenB AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:54 pm #5 2022-09-01 11:54 pm #5 Indeed. Here's the PR240M0. In case it might give some insight into the scale. motokok Member Joined 2019 2022-09-02 1:35 am #6 2022-09-02 1:35 am #6 Thanks - thought I was going mad - I'll try to correct the scale. motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB You must log in or register to reply here. Share: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link
AllenB said: It looks like labelling for phase. Click to expand... Except there's no phase info on that plot. As I said, the labeling is incorrect. Dave.
AllenB Moderator Joined 2008 Paid Member 2022-09-01 11:54 pm #5 2022-09-01 11:54 pm #5 Indeed. Here's the PR240M0. In case it might give some insight into the scale. motokok Member Joined 2019 2022-09-02 1:35 am #6 2022-09-02 1:35 am #6 Thanks - thought I was going mad - I'll try to correct the scale. motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB You must log in or register to reply here. Share: Facebook X (Twitter) LinkedIn Reddit Pinterest Tumblr WhatsApp Email Link
motokok Member Joined 2019 2022-09-02 1:35 am #6 2022-09-02 1:35 am #6 Thanks - thought I was going mad - I'll try to correct the scale. motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB You must log in or register to reply here.
motokok Member Joined 2019 2022-09-02 2:26 am #7 2022-09-02 2:26 am #7 Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms. Reactions: AllenB
Think I figured it out from the datasheet of the HM210Z10 where 105db = 40ohms and the bar beneath lowest amplitude = 4ohms.
