Hi-Fi Technics SB 7000a linear Phase speakers in Richmond, Ontario for sale

The best Technics ever made! hard to believe that once upon a time Technics made really good stuff. Really good dynamics, very punchy. and they seem to be way more efficient then there rating suggests!
Overplayed High rated speakers in same category I lately've had including B&W's 801's 802's 80's ., Yamaha M-1000, Focal 937's and many others.
The Technics SB-7000A speaker system has been designed to convert musical wave forms applied to the speaker to sound waves with extremely high fidelity, in other words, to make the transfer function of the speaker system is unity.
Even though musical wave forms are complex, they are merely a composition of various kinds of pitch components, each with it's own individual amplitude and phase characteristic.
Therefore, in order to have a faithful reproduction of the musical wave form applied to the speaker system, not only the amplitude (sound pressure level)/ frequency response of the speaker system, but also the phase/frequency response, must be flat.
Specifications
Type: 3-way, 3-speaker bass reflex system
Woofer: 350mm (14")cone type
Midrange: 120mm cone type
Tweeter: 32mm dome type
Input power: 150 watts,
Sound pressure level: 92.5dB at 1m
Crossover frequency: 700 Hz and 6 KHz
Frequency range: 35Hz to 22kHz
Dimensions: 480 x 845 x 410mm
6 ohms
75Lbs each
Upgraded with additional speaker terminals in the back for convenience(original on top still working as well) . Also extra braced and new foam installed inside of cabinets.
Look and sound fantastic, detailed, fast deep and tight bass.
Very rare, most owners just keep them unless in needs to sell. Unfortunately in current time these kind of speakers are not in production due to cost of parts and labour
In very good cosmetic and working condition.
Asking $650 as for market price, BUT for sound and build quality I would at least double numbers . Stands not included.
Consider trade.
Thks
Serge