Eminence Delta 15A 15" Speaker Passive (Unpowered) Speakers the 550A remains the standard

the 550A remains the standard against which other EQs are measured

broadcasting

But we got over it

Good for most applications including rock

Eminence Delta 15A 15" Speaker Passive (Unpowered) Speakers the 550A remains the standardEminence Delta 15A 15 Inch Speaker SPECIFICATION Nominal Basket Diameter 15", 381mm Nominal Impedance* 16 ohms Power Rating** Watts 400W Music Program 800W Resonance 45Hz Usable Frequency Range 64Hz 4kHz Sensitivity*** 100dB Magnet Weight 56 oz. Gap Height 0. 37", 9. 53mm Voice Coil Diameter 2. 5", 63. 5mm THIELE & SMALL PARAMETERS Resonant Frequency (fs) 45Hz DC Resistance (Re) 11. 3 Coil Inductance (Le) 1. 35mH Mechanical Q (Qms) 6. 54