#1
Okay guys, 1 question here, its for those amp techs out here on UG
would these be okay for a 2x12 cab you think?







Nominal Basket Diameter

SPECS

12" / 304.8mm
Impedance 8 ohms
RMS Power Rating 150 Watts
Frequency Response 45Hz - 5kHz
Sensitivity (1W/1m) 98dB
Voice Coil Diameter 1.5" / 38.1mm
Max. Crossover Frequency 5kHz


Mounting Information

Overall Diameter 12.24" / 310.9mm
Bolt Circle Diameter 11.63" / 295.3mm
Baffle Cutout Diameter 11.04" / 280.4mm
No. Of Mounting Holes 8
Mounting Hole Diameter 0.275" / 7mm
Overall Depth 4.725" / 120mm
Magnet Weight 20 oz.
Shipping Weight 7.1 lbs. / 3.2kg.

Thiele-Small Parameters
Resonant Frequency (fs) 49 Hz
Impedance (Re) 6.3 ohms
Coil Inductance (Le) 0.79mH
Electromagnetic Q (Qes) .88
Mechanical Q (Qms) 6.53
Total Q (Qts) .77
Compliance Equivalent Vol. (Vas) 121.5 Liters/4.29cu. ft.
Voice Coil Overhang (Xmax) 2.4mm
Surface area of Cone (Sd) .05195m2

ALPHA-12A RESPONSE CURVE

#2
what the heck kind are they
I thought I was the only one... Dammit.
#3
Are they made for guitar? If they're not, they may not hold up too well. Raw guitar signals are pretty brutal on speakers.

The response curve looks pretty standard...
Got any more info on these speakers? How much do they cost? Try comparing the specs with some better known brands/models.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#5
Well, if that's your price range, look into some Eminences, they're very good for the price. Cheap, made in the US, 7 year warranty, etc...
Good stuff.
Sorry, I have no clue about those.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#7
^Oh...you never said that
You just said Alpha, they sounded familiar, but yeah. I thought Alpha was the brand.
They should work well.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.
#8
Alpha 12-A's are made by Eminence. As far as i know, they should work. I don't know the full dynamic range (in hertz) of a guitar, but i estimated.
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