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© 2002 Directed Electronics, Inc
SPECIFICATIONS
Viper model 550.2 650.2 Tweeter
Fs (Hz) 71.1 51.7 1534.54
Vas (cu.ft.) 0.19 0.63 n/a
Vas (L)5.5 17.9 n/a
Qms 7.19 5.91 1.16
Qes 0.50 0.45 2.76
Qts 0.47 0.42 0.82
Re (ohms) 3.8 3.8 3.36
Z (ohms) 4 4 4
Le (mh) 0.49 0.483 0.01
SPL (dB 1w@1m) 87.86 89.29 91
XMAX (inches) 0.2 0.2 0.02
XMAX (mm) 4.8 4.8 0.5
Pe (watts) RMS 100 125 100
Pmax (peak / music power) 150 175 160
Mmd (grams) 8.35 10.52 0.21
Mms (grams) 8.77 11.30 0.22
Cms (mm/N) 571 839 49
Bl (Tesla-M) 5.46 5.565 1.6
EBP 142 115 556
Sd (sq. m.) 0.008 0.012 n/a
Sd (sq. in) 0.0013 0.0019 n/a
Sealed Box (cu. ft.) avg 0.25 0.35 n/a
Avg Box F3 (Hz) 106 87 n/a
Avg Box Fb (Hz) 100 86 n/a
Avg Box Q 0.7 0.7 n/a
Vented Box (cu.ft.) 0.334 0.785 n/a
Port Tuning Freq. (Hz) 59 47 n/a
Port Diameter Round (inches) 2 2.5 n/a
Port Square (inches) 3.14 4.91 n/a
Port Length (inches) 5.8 5.61 n/a
OOtthheerr PPaarraammeetteerrss 55..2255"" 66..7755"" 11""
Magnet Size (neodymium, oz.) 1.728 1.728 0.72
Magnet Dia. 25mm 25mm 25mm
Voice Coil Dia. (in.) 1 1 1
MMoouunnttiinngg DDeepptthh ((iinn..)) 22..7755 33..2255 11
MMoouunnttiinngg HHoollee DDiiaa.. ((iinn..)) 44..887755 55..7755 22..112255
Frame Dia. (in.) 6.25 7.25 2.5
FFrreeqquueennccyy RRaannggee ((HHzz)) 6655-55KK 5588-33KK 33KK-2255kk
SSyysstteemm FFrreeqquueennccyy RReessppoonnssee 6655-2255KK 5588-2255KK nn//aa
SSyysstteemm EEffffiicciieennccyy iinn ddBB 9900 9900 nn//aa