Eminence Delta Pro-8B 8" Midrange 16 Ohm

Brand:| Model: Delta Pro-8B
Eminence's Eminence Delta Pro-8B 8" 16 ohm speaker features a large 59 oz. ferrite magnet and thermally efficient cast aluminum basket, making it a top choice for pro audio loudspeakers, including line arrays.
  • Die-cast aluminum basket
  • High power handling and efficiency
  • Massive 59 oz. ceramic ferrite magnet
Part # 
Weight: 11 lbs.  
Your Price
Part # 290-508
Qty:  EA
Available Payment Methods

Product Details

Eminence Delta Pro-8B 8" Midrange 16 Ohm

The Eminence Delta Pro-8B 8" 16 Ohm Midrange/Midbass driver is optimized for professional audio or MI (musical instrument) speaker system applications. Its truncated cast aluminum basket is great for stacking in a line array. The heat sink-style fins between the frame and magnet provide critical cooling to the voice coil, thereby reducing power compression and increasing wattage capacity.

Product Specifications
  • Nominal Diameter8"
  • Power Handling (RMS)225 Watts
  • Power Handling (max)450 Watts
  • Impedance16 ohms
  • Frequency Response100 to 5,000 Hz
  • Sensitivity99 dB 1W/1m
  • Voice Coil Diameter2"
  • Magnet Weight59 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)71.4 Hz
  • DC Resistance (Re)10.5 ohms
  • Voice Coil Inductance (Le)0.9 mH
  • Mechanical Q (Qms)7.47
  • Electromagnetic Q (Qes)0.27
  • Total Q (Qts)0.27
  • Compliance Equivalent Volume (Vas)0.65 ft.³
  • Mechanical Compliance of Suspension (Cms)0.27 mm/N
  • BL Product (BL)17.6 Tm
  • Diaphragm Mass Inc. Airload (Mms)18.1g
  • Maximum Linear Excursion (Xmax)3 mm
  • Surface Area of Cone (Sd)218.9 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter8.02"
  • Baffle Cutout Diameter7.36"
  • Depth3.75"
  • # Mounting Holes4
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.07 ft.³
  • Sealed F3219 Hz
  • Vented Volume0.14 ft.³
  • Vented F3142 Hz
Eminence Delta Pro-8B 8" Midrange 16 Ohm
  • BrandEminence Speaker
  • ModelDelta Pro-8B
  • Part Number290-508
  • UPC876358001620
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Weight11 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.

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Eminence Delta Pro-8B 8" Midrange 16 Ohm
Eminence Delta Pro-8B 8" Midrange 16 Ohm is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Great productI was looking for 16 ohm mid range drivers to replace the mid range speakers in a vintage pair of 3 way Jensen speaker systems from the the late 1950's. The horn tweeter and woofer were in good shape for their age and design but I felt the mid range performance was lacking. The Eminance Delta Pro-8B was selected after a lot of research.These speakers are very nicely made and finished and were a good physical fit with the other drivers. The sound improvement was what I was looking for and I am sure will improve slightly as they are used more. More definition and musicality from the midrange now contributing to a much better and improved sounding system.Parts Express provided their usual great service and were helpful when I called the tech before finalizing my order.Very satisfied customer here!
Date published: 2012-06-02

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Eminence Delta Pro-8B 8" Midrange 16 Ohm

What is the dimension on its narrow side?

Asked by: Benphysics
The distance across the flat edges is 8".
Answered by: MattP
Date published: 2014-04-25

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