Atkinson TL Built by Jakob Speksnijder this page still under construction A design by P. Atkinson published in HiFi News & Record Review April 1976 using a Kef B139, a Kef B110, 2 Coles 3000, a Kef T27, and a Coles 4001K. Plans
Kef B139 SP1044   Sd 354 cm2 (55 in2)   Vas 164 liters   Cms 9.3 e-4 N/m   Mms 43.5 g   Fs 25 Hz   Bl 12.3 N/A   Re 6.6 Ohms   Qms 5.5   Qes 0.4   Qts 0.37   Pmax 100 Watts   Xmax 6 mm Line Configuration   Physical length ~9 ft   Physical fs at 1/4 wl 32 Hz   Begining cross section 66 in^2   Terminus section 26 in^2   Taper 1.2 : 0.47 Sd   Stuffing Long Fibre Wool
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