Source of data and citations
AudioScienceReview aka ASR: it is a fantastic source of speakers data thanks to amirm@. They also have a lot of data about DACs that you may found useful. There is little correlation between price and quality in the audio world and this data gives some objective criteria to decide what to buy. You can support ASR.
ErinsAudioCorner aka EAC: Hardis is a motivated person reviewing speakers and doing an outstanging job at it. He also has a Youtube channel. You can also support him.
speakerdata2034 is a blog with a collection of spinorama from various sources. Index of measurements is available.
A number of companies provides data usually in the form of a GLL file which is format developped by AFMG. This format is very often used for live sound or tour speakers.
Here is a partial list of vendors providing data:
- Alcons Audio
- Axiom
- BiAmp
- Coda
- D&B Technik
- DAS
- Danley
- FBT
- Fulcrum Acoustics
- Genelec
- Highlite
- Idea
- JBL
- K-Array
- KME Sound
- KV2 Audio
- Kling Freitag
- LD Systems
- Martin Audio
- Meyer Sound
- Neumann
- Nexo
- Presonus
- QSC
- RCF
- SE Audiotechnik
- Seeburg
- Soundvision
- Turbosound
- Wharfedale Pro
- Yamaha
- dB Technogies