K 28 WP - 50 OHM,SPEAKER 50OHM 1W TOP PORT 76DB
K 28 WP - 8 OHM,SPEAKER 8OHM 1W TOP PORT 76DB
K 28 WP, 50 ohm,
K 28 WP, 8 ohm,
K 28 WPC - 50 OHM,SPEAKER 50OHM 1W TOP PORT 75DB
K 28 WPC - 8 OHM,SPEAKER 8OHM 1W TOP PORT 75DB
K 28 WPC BL - 8 OHM,SPEAKER 8OHM 1W TOP PORT 75DB
K 28.40 - 8 OHM,SPEAKER 8OHM 2W TOP PORT 79DB