Mark Bass 121 R58

- Speaker: 1 x 12″ Markbass Neodymium Custom - Tweeter: Piezo - Speaker power rating (AES standard): 400W RMS - Frequency response: 45 Hz to 20 kHz - Speaker impedance: 8 Ohm - Efficiency dB SPL: 99 dB - Bass reflex: back - Output power amplifier: 500W RMS @ 4 Ohm, 300W RMS @ 8 Ohm Controls and switches: - GAIN - LINE OUT level control - PRE/POST EQ - MUTE switch - MASTER - GND switch - Tone control: LOW: level +/-16 dB ( freq. 68 Hz) - MID LOW: level +/-16 dB (freq. 360 Hz) - MID HIGH: level +/-16 dB (freq. 800 Hz) - HIGH MID: level +/-16 dB (freq. 1.4 KHz) - HIGH: level +/-16 dB (freq. 10 KHz) Filter and switch: - OLD SCHOOL FILTER - 3 WAY SWITCH: flat/scooped-mid/FSW Other: - LINE OUT - EFFECT SEND / RETURN - SPEAKER OUT: Speaker Twist, 2 x jack - BI-BAND LIMITER - foot switch (optional) for FLAT/SCOOPED-MID Dimensions: - Width: 14.96 inch / 38 cm - Height: 16.73 inch / 42.5 cm - Depth: 14.17 inch / 36 cm - Weight: 26.6 lbs / 12.1 kg