Clearance Item

RCF L12/854K 12" Midbass Speaker

Brand:| Model: L12/854K
Rugged and efficient cast frame pro driver. Linear response past 3 kHz makes it a good solution for high quality two or three way systems.
  • High efficiency midbass driver
  • 2-1/2" copper voice coil on a polyimide former
  • 700 watt continuous program power handling
  • Very high sensitivity and low distortion
  • M-roll surround, light moving mass, and exponential cone geometry
Part # 
Weight: 14 lbs.  
This Product Is No Longer Available
Comparable Items Can Be Found Here:
Available Payment Methods

Product Details

RCF L12/854K 12" Midbass Speaker

Rugged and efficient cast frame pro driver. Linear response past 3 kHz makes it a good solution for high quality two or three way systems. Crossover networks can be designed easily thanks to the speaker's refined performance, and the L12/854K delivers exceptional results when used in conjunction with 1" compression drivers.

Product Specifications
  • Nominal Diameter12"
  • Power Handling (RMS)250 Watts
  • Power Handling (max)700 Watts
  • Impedance8 ohms
  • Frequency Response50 to 3,000 Hz
  • Sensitivity98 dB 2.83V/1m
  • Voice Coil Diameter2.5"
Thiele-Small Parameters
  • Resonant Frequency (Fs)67 Hz
  • DC Resistance (Re)5 ohms
  • Voice Coil Inductance (Le)1.1 mH
  • Mechanical Q (Qms)3.4
  • Electromagnetic Q (Qes)0.43
  • Total Q (Qts)0.38
  • Compliance Equivalent Volume (Vas)2.05 ft.³
  • BL Product (BL)13.7 Tm
  • Diaphragm Mass Inc. Airload (Mms)38g
  • Maximum Linear Excursion (Xmax)3 mm
  • Surface Area of Cone (Sd)530 cm²
Materials of Construction
  • Cone MaterialPaper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerKapton® / Polyimide
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter12.6"
  • Baffle Cutout Diameter11.3"
  • Depth5.4"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume0.47 ft.³
  • Sealed F3151 Hz
  • Vented Volume1.32 ft.³
  • Vented F386 Hz
RCF L12/854K 12" Midbass Speaker
  • BrandRCF USA
  • ModelL12/854K
  • Part Number294-840
  • UPC844632090011
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Weight14 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.

Similar Products

View similar products to the RCF L12/854K 12" Midbass Speaker
in the Woofers, Subwoofers & Midrange Speakers product category.


RCF L12/854K 12" Midbass Speaker

Product Q&A

Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email  for a prompt reply.
RCF L12/854K 12" Midbass Speaker

Customer Projects

Customer projects that include: RCF L12/854K 12" Midbass Speaker

If you built a project using this product, post it in the Parts Express Project Gallery.

Customer Discussions

If you would like to start a discussion about this product, post a thread in the TechTalk Customer Forum.

Recently Viewed Products

Part # 294-840
Get Deals
emailed to you every week.

Be the first to hear about new and exciting products,special pricing and incredible deals!

See This Week's "GET DEALS" Email
Parts Express
725 Pleasant Valley Dr.Springboro,OH 45066USA

© 1996-2015 Parts Express, All Rights Reserved

Live Chat Software