Speaker RCF LF21N451, 8 ohm, 21.54 inch

Brand 
RCF
Model 
LF21N451
SKU 
LF21N451-8
Manufacturer code 
11100043
Product type 
Cone driver
Sales packaging 
Sold by piece
Brand
RCF
Model
LF21N451
TLHP code
LF21N451-8
Manufacturer code
11100043
Product type 
Cone driver
Sales packaging 
Sold by Piece
Recommended retail price
€742.00
TLHP selling price
552.00IT/piece
excluding delivery service
Save
26%

Simulate shipping costs and VAT
In stock: >4 pieces

If you want to purchase more than the quantity in stock, have a look at the supply time below :

Indicative average supply lead time: 3 weeks
90 days to change your mind !
learn more
Qty

  • The LF21N451 is a very high power handling and efficiency transducer specially designed to provide powerful and accurate sub-bass frequencies with low distortion and low power compression.

    Features :
    4,5 - inch Inside/Outside copper voice coil
    3000 Watt continuous program power handling
    98.5 dB Sensitivity
    30 Hz - 1 kHz Frequency range
    Dual-forced air ventilation for minimum power compression
    Dual spider designed with silicon based damping control
    BL of 34.5 Txm to provide a faster and accurate low frequenc

    The height of the voice coil has been specifically designed to improve the excursion and linearity at very low frequencies.
    The LF21N451 uses a special RCF developed carbon fibre + nylon + cellulose composite pulp which reinforces and improves the rigidity of the cone structure.
    The new pulp and the large triple roll surround along double silicon spider system ensure excellent control and makes the cone resistant to deformation caused by very large displacements and pressure created by the transducer's high excursion behaviour.
    A fully optimised T-pole design generate the minimum amount of flux modulation. The dual-forced air venting system provides a very efficient voice coil ventilation to minimize the power compression.

    Applications :
    The LF21N451 is ideal in applications where light weight,very high BL and power handling are required.
    It's especially used for tourimg,perfect for powerful lows in horn loaded sub bass system or reflex designs.

General

Product type Cone driver
Brand RCF
Reference LF21N451
Product code 11100043

Informations

Nominal impedance 8 ohm
Dimensional category 21 inch
Frequency coverage type Sub, Low
Manufacturer sensitivity 98 dB
Calculated sensitivity 97.59 dB
Nominal power handling 1500 W
Bandwidth 30÷1000 Hz

Fundamental parameters

Sd 1700 cm²
Mms 315 gr
Le 3 mH
Re 5.6 ohm
BL 34.5 T.m

Small signal parameters

Fs 30 Hz
Qes 0.27
Qms 6.1
Qts 0.26
Vas 375 L

Datas

Xmax ±13 mm
Calculated Xmax ±14.5 mm
EBP 111 Hz
Zmin 7 ohm
Fs / Qts 115 Hz
Vas * Qts² 25.35 L
Efficiency 4 %
Calculated efficiency 3.6 %
Weight ~13.3 kg

Dimensions

Voice coil diameter 4.5 inch
Winding depth 34 mm
Gap height 15 mm
Outside diameter 547 mm
Baffle cutout diameter 508 mm
Front thickness 15 mm
Depth after front 234 mm
Diamètre aimant (mm) 148 mm

Shape & Materials

Front chape Cylindrical
Magnet type Neodymium
Basket masterial Aluminium
Winding material Copper
Surround material Cloth


Question about RCF LF21N451-8

Ask a new question!

This system is only available for technical questions. For questions of prices, availability of products and deadline thank you to send your request by the contact page.


With RCF LF21N451-8, customers has also bought

Informations RCF LF21N451-8

The LF21N451 is a very high power handling and efficiency transducer specially designed to provide powerful and accurate sub-bass frequencies with low distortion and low power compression.

Features :
4,5 - inch Inside/Outside copper voice coil
3000 Watt continuous program power handling
98.5 dB Sensitivity
30 Hz - 1 kHz Frequency range
Dual-forced air ventilation for minimum power compression
Dual spider designed with silicon based damping control
BL of 34.5 Txm to provide a faster and accurate low frequenc

The height of the voice coil has been specifically designed to improve the excursion and linearity at very low frequencies.
The LF21N451 uses a special RCF developed carbon fibre + nylon + cellulose composite pulp which reinforces and improves the rigidity of the cone structure.
The new pulp and the large triple roll surround along double silicon spider system ensure excellent control and makes the cone resistant to deformation caused by very large displacements and pressure created by the transducer's high excursion behaviour.
A fully optimised T-pole design generate the minimum amount of flux modulation. The dual-forced air venting system provides a very efficient voice coil ventilation to minimize the power compression.

Applications :
The LF21N451 is ideal in applications where light weight,very high BL and power handling are required.
It's especially used for tourimg,perfect for powerful lows in horn loaded sub bass system or reflex designs.
Manufacturer RCF
Name Speaker RCF LF21N451, 8 ohm, 21.54 inch
SKU LF21N451-8
Impedance 8 Ohm
Seller TLHP
Price 552.00 460
Availability In stock


All or a part of the characteristics displayed on this page are provided by the manufacturer, it is possible that some pieces of information are unavailable or wrong. In addition, the manufacturer may need to change the product specifications without notice at any time in order to improve the product, or to adapt his offer to the manufacturing and supply constraints.. We suggest you to contact us if you need further information, if you observe a mistake or if you wish to have confirmation about information.

Measures/Schemes RCF LF21N451-8

SPL measure

Image spl measure cone driver RCF Speaker RCF LF21N451, 8 ohm, 21.54 inch

Dimensions

Image Drawing & Mounting cone driver RCF Speaker RCF LF21N451, 8 ohm, 21.54 inch

Garantie

This product is under manufacturer's warranty. This warranty protect you for the manufacturing defaults. The warranty does not protect for abnormal use of the product.

This site uses cookies. By continuing to browse this site you are agreeing to our use of cookies. Find out more here.
x
This site uses cookies. By continuing to browse this site you are agreeing to our use of cookies. Find out more here.
x