Midrange:

Vifa XT Line XG18WH00 Glass fiber 6.5"

Spectral contamination:    (9vrms 100% AM modulation at 10% F.)

100 hz 200 hz 300 hz 400 hz
500 hz 700 hz 1000 hz 1500 hz

Stored Energy

200 hz  burst 400 hz  burst 800 hz  burst 1200 hz burst
1400 hz burst 1600 hz burst 2000 hz burst 2800 hz burst

 

Scanspeak 21W/8554  vs. Peerless HDS-205

Spectral contamination.

Scanspeak 21w/8554      
100 hz 800 hz 1000 hz 1600 hz
Peerless HDS-205      
100 hz 800 hz 1000 hz 1600 hz

Stored Energy.

Scanspeak 21w/8554      
no data currently available I will post it later.    
Peerless HDS-205      
600 hz  burst 800 hz  burst 1400 hz  burst 2000 hz  burst

Dayton 2" Dome

500 hz 1000 hz 2000 hz 3000 hz

More midrange data to come...