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Eminence Delta Pro-12A 12" Cast Frame Driver

Brand:|Model: Delta Pro-12A|Part # 290-510
The Eminence Delta Pro-12A 12" cast frame speaker is recommended for professional audio in sealed, vented, and horn-loaded enclosures. Ideal for full-range, mid/hi, and monitor wedges. Extremely efficient through the midrange, but with a surprisingly strong bass kick as well.
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Eminence Baseball Cap
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Part # 290-510
  • Kapton coil former
  • Polyamide-imide coated copper voice coil
  • Die-cast aluminum frame
  • Ferrite magnet
  • Vented and extended pole piece
  • Paper cone
  • Cloth M-roll surround

Product Details

Eminence Delta Pro-12A 12" Cast Frame Driver

The Eminence Delta Pro-12A 12" cast frame speaker is recommended for professional audio in sealed, vented, and horn-loaded enclosures. Ideal for full-range, mid/hi, and monitor wedges. Extremely efficient through the midrange, but with a surprisingly strong bass kick as well. Made in the USA. 7-year manufacturer's warranty!

Product Specifications
  • Nominal Diameter12"
  • Power Handling (RMS)400 Watts
  • Power Handling (max)800 Watts
  • Impedance8 ohms
  • Frequency Response52 to 4,500 Hz
  • Sensitivity99.2 dB 1W/1m
  • Voice Coil Diameter2.5"
  • Magnet Weight80 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)51 Hz
  • DC Resistance (Re)5.71 ohms
  • Voice Coil Inductance (Le)0.84 mH
  • Mechanical Q (Qms)7.56
  • Electromagnetic Q (Qes)0.37
  • Total Q (Qts)0.35
  • Compliance Equivalent Volume (Vas)2.89 ft.³
  • Mechanical Compliance of Suspension (Cms)0.21 mm/N
  • BL Product (BL)15.3 Tm
  • Diaphragm Mass Inc. Airload (Mms)48g
  • Maximum Linear Excursion (Xmax)4.6 mm
  • Surface Area of Cone (Sd)532.4 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialAluminum
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter12.38"
  • Baffle Cutout Diameter11.07"
  • Depth6.22"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.54 ft.³
  • Sealed F3125 Hz
  • Vented Volume1.42 ft.³
  • Vented F374 Hz
Eminence Delta Pro-12A 12" Cast Frame Driver
  • BrandEminence Speaker
  • ModelDelta Pro-12A
  • Part Number290-510
  • UPC876358000333
  • Product CategoryPro Woofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (28 Reviews)
  • Weight17.9 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Eminence Delta Pro-12A 12" Cast Frame Driver
in the Pro Woofers, Subwoofers & Midrange Speakers product category.


Eminence Delta Pro-12A 12" Cast Frame Driver
Eminence Delta Pro-12A 12" Cast Frame Driver is rated 4.6786 out of 5 by 28.
Rated 5 out of 5 by from Smooth tone especially the mids. Very articulate.I have a Delta Pro-12A in my amp (D'Mars ODS). Keep in mind that this is a Marshallish preamp into a Dumblish OD, FX, LTPI, etc .... that is cathode biased. Probably about a 23 watt amp using 5881's.This speaker allows me to dial up more mids and the mids are smoother in tone then with the Cannabis Rex that I was using. I think maybe the highs in the Cannabis Rex are slightly smoother?Main differences that I hear are more sustain and more vowel tone with mids dialed up & the speaker seems to be amazingly touch sensitive especially on the clean setting. Playing softly, it is very clean/clear and when you dig in it hangs on that edge of break up. (this is without changing the dials on the amp).Whether single coil tone or dual coil tones, the clean channel sounds wonderful to me. I slightly prefer the single coil tones with this speaker when the amp is in the OD mode. This speaker sounds great to me with the OD.
Date published: 2014-09-15
Rated 5 out of 5 by from Top performerHi,just loaded 4 of these into some compact w-horns the sound is sensational !deep crisp & punchy with a real warmth through the low mids.Great economical & versatile driver.full marks to parts express 4 day from USA to Australia a great example of a company doing it right.
Date published: 2014-08-29
Rated 5 out of 5 by from Can't beat this speaker/ litteralyI bought one of these for a Reinhardt 18 combo and wow, what a difference in sound and volume. I sold my EV 12l's and now use these. I have an older ported Peavey 2x12 cabinet that I used for bass and loaded two 12A pro's in it and there was a big difference. I use at times an old Peavey Bandit 65 and it sings with this speaker. My pa rig consists of two JBL sr4732A cabinets, and one of the JBL 2206's blew and I had no time to order another or get a re-cone. I took one of my Delta 12A pro's and stuck it in the cabinet and although the speakers aren't matched, I and everyone else in the band thinks and sound is better than the 2206 speakers. Honestly, there seems to be more lows coming from that speaker or rather, the lows are more pronounced. I left it in. There's another 2206 starting to crackle and when I have to replace it, I'm putting 3 more 12A's in. The power handling will be lowered but the over all bass will be better, as with the other guitar and bass cabinets the uses them now. This is one great multi use speaker. I cross my top cabs over at 100 and 1,200 hz for the highs. These puppies sound beautiful with voice and music in general. Although the 4732A's are suppose to be tunes down to a usable 38hz, I only ever used them full range twice and they rock (of course not boosting any bass fpr "live" music). With recorded music?? No problem. I cut the lows off at 50Hz and there's plenty of bottom end.Hope this helps! These are a GREAT sounding speaker....very smooth and not too bright for guitar.
Date published: 2013-11-09
Rated 5 out of 5 by from What a beastThis is a great sounding speaker for a 2 way system. Its performance is outstanding to 2k+ and perfect for 2 way crossover points. In a sealed cabinet with proper dampening, it can kick out bass down to about 40hz.
Date published: 2013-06-13
Rated 5 out of 5 by from 65 watt, one-piece half-stack!After deciding that I'd lugged my last 4x12" half-stack without a roadie, I traded in my Fender FM100 half-stack for something more portable - a Fender FM65DSP.This amp is a 65watt modeling combo w/ a closed/ported 12". Because of the cabinet design, I figured it would deliver punch in a small package.I was never completely satisfied w/ the downsize - although my back loved it. I wondered whether a better speaker would make a difference.I was advised to contact Eminence and seek a solution. They recommended the Delta Pro 12A.The first rehearsal after installing it, jaws were dropping. My amp was a lot louder and punchier. Highs shimmer; mids are smooth; bass is tight. Because this speaker simply doesn't distort, I've been able to use more gain without turning to mush - giving me more volume headroom.I use a tubular steel amp stand. If not for that, this rig would shake the floor like a 4x12" cab. That aside, the experience is like standing in front of one.Responsiveness to playing dynamics is excellent. Even at high-gain settings, playing softly will clean the sound right up. I'm also noticing less hearing fatigue after playing at the same high volume levels - as though the smoother upper-mids are friendlier to the ear.I play classic hard rock in a 3-piece band and can now easily use this rig in small clubs where I'd normally only have confidence in a half-stack.
Date published: 2012-11-04
Rated 4 out of 5 by from nice clean speakerYes, it does remind me a bit of an EVM 12L, but, different treble response. I drive this with a 50W tube amp and it sounds nice. Still breaking it in, but so far, so good. A good speaker for the money, especially when compared to the EV price of over $200 for their EVM 12L "classic."
Date published: 2012-08-06
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Product Q&A

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Eminence Delta Pro-12A 12" Cast Frame Driver

I have a pair of Delta Pro 12a's that I have tried out for guitar and they seem to work fine. Am getting ready to do a permanent mounting in to two seperate cabinets, both with 3/4" plywood baffles. What mounting screws do I use?

Asked by: Captonron
You can use #10 x 32 screws and T-nuts for this driver.
Answered by: MattP
Date published: 2015-11-09

This is rated 400 watts RMS will my Crown XLS 1500 @ 300 watts 8 ohm be enough to get near the full potential from this speaker? I see in two reviews here there is 1 using a 23 watt amp another using 65 watt amp. smh

Asked by: Djohnmusic
That amount of power will be more than enough to drive this woofer to its mechanical limits.
Answered by: MattP
Date published: 2015-06-05

Can this speaker be used soly as midrange speaker from 100hz- 3khz? Looking for more midrange than midbass. Would this be more suitable or delta 12a

Asked by: mike2131
Of the two options, the Delta Pro 12 will have a much smoother midrange response above 2kHz, so this is the driver I would recommend.
Answered by: MattP
Date published: 2015-03-02

Cabinet internal volume for the Delta Pro12A

I'm in the process of building a a pair of cabinets for home use What would be the ideal internal volume and port size in order to obtain the deepest bass from the Delta Pro12A? Thanks
Asked by: gilaudio
Answered by: bigmike
Date published: 2014-02-14
  • 2016-02-11T07:27CST
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