National EAS-20PL22

Commentary

20 cm diameter cone type woofer unit.

At the time of sale, there were 2 types of variations, 8 Ω and 16 Ω.
Since the EAS-20PL22NA was an 8 ohm specification, the 16 ohm specification was probably the model number EAS-20PL22NB. The 16 ohm specification model ended relatively early and the EAS-20PL22NA was sold as EAS-20PL22.

Model Rating

Type	20 cm cone type woofer unit
Allowable input	10W
V. C impedance	8 Ω (EAS-20PL22NA) 16 Ω (EAS-20PL22NB)
Frequency characteristic	35 Hz to 5 kHz
Lowest resonance frequency	40 Hz to 50 Hz
Output sound pressure level	98dB
Magnetic flux density	10,000gauss
Weight	0.88kg