@vijaya prabhu Voight pipe quarter wavelength design for a full range speaker is a good preposition.

Following is amazon.in link for Fredo Frd8.8OCNB Full Range monitor we are currently having a discussion about.

https://www.amazon.in/dp/B07T1DHJD3/ref=smop_skuctr_view

Q mechanical = 3.53

Q elec = 0.76

Leading to Total Q = 0.63

Which theoretically fulfills TPQT requirement of Qts between 0.2 to 0.7, though it marginally misses the BEST recommended range between 0.4 to 0.5

It will be an excellent mid range for Studio Monitoring effect. Giving you a linear/Powerful mid range between 200Hz to 8KHz

Later on when you want to experiment with a bigger, more powerful mid range, do have a look at Fredo 12 or 15inch Stage monitor. It will blow your senses and beat any Hi-Fidelity mid range Stage Monitor available in market.

Following is the link for Fredo 12 inch Stage monitor

https://www.fredo.in/product-page/fredo-12-inch-stage-monitor