5 out of 5
Eminence Delta 15LF-4 15" Driver 4 Ohm
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Product Description
Manufacturer Part Number: Delta 15LF-4
The 4 ohm Eminence Delta 15LF-4 15" woofer provides excellent performance for high power low frequency in sound reinforcement systems, bass guitar combos, DJ speakers, and stage monitors.
Key Features:
Overview:
Eminence Delta 15LF-4 15" Driver 4 Ohm
The Eminence Delta 15LF-4 15" 4 ohm speaker is ideal for high power, low frequency performance in sound reinforcement systems, bass guitar combos, club music systems, and stage monitors. Eminence LF models are designed with extended excursion to deliver more bass than standard models and provide smooth mid-band frequency response for three-way applications. Made in the USA. 7-year manufacturer's warranty!
Specification:
Manuals & Resources:
The 4 ohm Eminence Delta 15LF-4 15" woofer provides excellent performance for high power low frequency in sound reinforcement systems, bass guitar combos, DJ speakers, and stage monitors.
Key Features:
- Polyimide voice coil former for high power handling
- Vented and extended pole piece improves heat dissipation
- Reinforced stamped steel frame takes the abuse of pro sound
- High excursion, high efficiency for impressive output capabilities
Overview:
Eminence Delta 15LF-4 15" Driver 4 Ohm
The Eminence Delta 15LF-4 15" 4 ohm speaker is ideal for high power, low frequency performance in sound reinforcement systems, bass guitar combos, club music systems, and stage monitors. Eminence LF models are designed with extended excursion to deliver more bass than standard models and provide smooth mid-band frequency response for three-way applications. Made in the USA. 7-year manufacturer's warranty!
Specification:
Product Details | |
|---|---|
| Brand | Eminence Speaker |
| Model | Delta 15LF-4 |
| Part Number | 290-4504 |
| UPC | 876358002627 |
| Unit of Measure | Each |
| Weight | 14.15 |
Product Specifications | |
|---|---|
| Nominal Diameter | 15" |
| Bolt Circle Diameter | 14.56 |
| Power Handling (RMS) | 600 Watts |
| Power Handling (MAX) | 1200 Watts |
| Impedance | 4Ω |
| Frequency Response | 40 to 2,200Hz |
| Sensitivity | 95dB 2.83V/1m |
| Voice Coil Diameter | 2.5" |
Thiele-Small Parameters | |
|---|---|
| Resonant Frequency (Fs) | 40Hz |
| DC Resistance (Re) | 3.37Ω |
| Voice Coil Inductance (Le) | 0.76mH |
| Mechanical Q (Qms) | 6.22 |
| Electromagnetic Q (Qes) | 0.53 |
| Total Q (Qts) | 0.49 |
| Compliance Equivalent Volume (Vas) | 8.97ft³ |
| Mechanical Compliance of Suspension (Cms) | 0.24mm/N |
| BL Product (BL) | 10.32T·m |
| Diaphragm Mass Inc. Airload (Mms) | 66g |
| Maximum Linear Excursion (Xmax) | 6mm |
| Surface Area of Cone (Sd) | 873cm² |
Materials of Construction | |
|---|---|
| Cone Material | Paper |
| Surround Material | Cloth |
| Voice Coil Wire Material | Copper |
| Voice Coil Former | Kapton® / Polyimide |
| Basket / Frame Material | Steel |
| Magnet Material | Ferrite |
Mounting Information | |
|---|---|
| Overall Outside Diameter | 15.15" |
| Baffle Cutout Diameter | 13.87" |
| Depth | 6.3" |
| # Mounting Holes | 8 |
Parts Express Staff Recommended Enclosure Volume | |
|---|---|
| Sealed Volume | 3ft³ |
| Sealed F3 | 77Hz |
| Vented Volume | 4.5ft³ |
| Vented F3 | 52Hz |
Manuals & Resources:
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
By Alix
Date: September 15, 2025
I loaded the Delta 15LF4 in a samson speaker sub cabinet that had the driver blow out and WOW!! What a difference!! I never got so much clean kick before, I wish the speaker had blown out sooner.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Paul
Date: July 17, 2024
Delta 15LF4 is powerful and clear. I put one in a $50.00 sub-woofer cabinet, hooked up my Fender Rumble and will compare it to a $500.00 bass cabinet.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Garal Kelley
Date: August 11, 2022
I purchased this speaker for several reasons: 1) I needed a bass speaker that could with stand at least 500 watts of power that my amp produced. This speaker is rated at 600 watts of RMS power - 1200 watts peak power. 2) It has an aluminum voice coil that can dissipate the heat that the amplifier creates. My Fender Rumble 500 runs in a bridged mode. The original 1534; probably was using a copper voice coil. That made the amp run 'HOT'. The eternal bus fan was running from the beginning. Now - the amp runs cool. If you want a good 4 ohm speaker - this is the one to get!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
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