Genelec Community Forum has been archived

Thank you for all the years of Community discussions and activity!

The time has come for us to retire the community forums, but we will keep everything available for reading. There is a lot of valuable content written over the years, and you'll be able to access all of that. However, no new posts can be written, or old posts modified.

If you have questions, we recommend you use the Support function on the bottom right corner to contact our Customer Support directly.

Alternatively, if you wish to engage in a community discussion with other people, there are many active forums available. There is also an active, fan managed GENELEC COMMUNITY in Facebook, and many Genelec employees are active in the discussions there.

We are sorry for any possible inconvenience this may cause you, but we hope to hear from you through the other channels mentioned above.

Genelec Support

Message Boards

1237A & 1238A harmonic distortion under 200Hz

petit-barde, modified 6 Years ago.

1237A & 1238A harmonic distortion under 200Hz

Youngling Posts: 2 Join Date: 6/20/16 Recent Posts
Hello,

reading the 1237/8A specs, I noticed that harmonic distortion at 95 dB of 1237A is less than 3%
while the 1238A exhibits a less than 1% HD.

Is that a typo or the use of a better LF driver in the 1238A (or used in more linear conditions, or else) ?

Regards,
Marc
ilkka-rissanen, modified 6 Years ago.

Re: 1237A & 1238A harmonic distortion under 200Hz

Yoda Posts: 2564 Join Date: 3/23/09 Recent Posts
Hi Marc,

It is not a typo. The LF driver is the same type on both but naturally a larger size (12" vs. 15") driver in a larger sized cabinet volume will produce lower distortion. It you would have 18" in even larger cabinet, it would produce even less distortion because the surface area of the driver is larger and hence it needs to move less to produce same SPL. Larger cabinet volume also brings up the sensitivity at the low frequencies which means that the system will need less power to produce the same SPL. In another words, bigger is better. 8-)
petit-barde, modified 6 Years ago.

Re: 1237A & 1238A harmonic distortion under 200Hz

Youngling Posts: 2 Join Date: 6/20/16 Recent Posts
Thank you for your answer !