21NLW9001 Driver 21inch Neodymium 1800W 4/8Ω 18 Sound - Call price

Product code: 21NLW9001 4 OHM      1,251,933     
4.6/5 in 16 times 
18  Sound
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  • Price only applicable for overseas
  • Technical Support
  • Term of shipment: Ex-Works
  • Pick up at Hoang Bao Khoa LTD company
  • All shipping costs and risks, including export/import procedures, duty and others are on buyer’s account (Incoterm 2020)

Features

Made in Italy
95 dB SPL 1W / 1m average sensitivity
135 mm (5.3 in) Interleaved Sandwich Voice coil (ISV)
3600W program power handling
60mm peak to peak excursion
Ultra linear dual magnet motor design
Single Demodulating Ring (SDR) for lower distortion
Composite reinforced straight ribbed cone
Optimized high grade ferrite magnet assembly
Recommended for subwoofer usage in compact vented enclosures
The 21NLW9001 is an ultra low frequency 21 inch neodymium high performance transducer. The transducer is the evolution of the 21NLW9000 subwoofer, and has been optimized for direct radiation and bandpass subwoofer cabinet designs. For optimum results recommended amplifier should be able to deliver 3600 Watt program power without clipping. At the heart of the updated design stays the improved double silicon spider based on DSS technology, letting the 21NLW9001 being able to control the moving mass with high linearity, showing an exceptional stability of mechanical parameter values in the long term.

Shipping informations

Length
57.5 cm
Width
57.5 cm
Height
29.5 cm
Weight
15.81 kg

Official Distributor Certificate

The transducer design features include a high performance large displacement suspension system for improved cone control at very high level of SPL matching. Eighteen Sound engineers have obtained the best possible results with today's available materials in terms of clean and undistorted LF reproduction at a ultra high SPL, with the lowest possible power compression figure. The state-of-the-art 5,3" diameter ISV copper voice coil is an inside-outside split winding, four layers design, enabling the 21NLW9001 to handle up to 3600W program power. Bl force factor, as well as all other electro-dynamic parameters, are linear within the working range. The high excursion design (70mm before damage, ±14mm linear Xmax) makes the The 21NLW9001 capable of amazing SPL in direct radiation enclosures and its motor has been developed after intense FEA and fluidodynamics simulation and testing, focusing on dissipating the heat generated by the powerful 5.3" coil. Special attention was given to the optimization of air flow into the gap without introducing audible noise. A special low density material air diffractor placed into the backplate acts as a cooling system, increasing the power handling capability and lowering the power compression figure. The low distortion and sound quality are further improved by an aluminum demodulating ring (SDR technology) that flatten impedance and phase with a constant power transfer. The carbon fiber reinforced, straight ribbed cone shows a proprietary resin treatment for extra pulp strength and water repellent properties. A special coating applied to both the top and back plates makes the transducer far more resistant to the corrosive effects of salts and oxidization.

Driver diagram


Driver chart


Specifications

thông số kỹ thuật
1. 2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
2. Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
3. Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.

  • Price only applicable for overseas
  • Technical Support
  • Term of shipment: Ex-Works
  • Pick up at Hoang Bao Khoa LTD company
  • All shipping costs and risks, including export/import procedures, duty and others are on buyer’s account (Incoterm 2020)

Contact

Business hours

Monday 7:30 AM - 5:00 PM
Tuesday 7:30 AM - 5:00 PM
Wednesday    7:30 AM - 5:00 PM
Thursday 7:30 AM - 5:00 PM
Friday 7:30 AM - 5:00 PM
Saturday 7:30 AM - 5:00 PM

FAQs

Does the company offer free shipping?

Free shipping for local order over $22. Oversea buyers will pay for shipping cost under Ex-work term.

21NLW9001 4 OHM has a discount?

This price is the best to you now.

Which brand does 21NLW9001 4 OHM belongs to?

21NLW9001 4 OHM belongs to 18 Sound. Eighteen Sound is a leading designer and manufacturer of high quality professional audio loudspeakers, developing state-of-the-art transducer technologies and using the most advanced production techniques, located in Reggio Emilia, Italy.

How long is the warranty of 21NLW9001 4 OHM?

21NLW9001 4 OHM is 0 months of warranty.

Does HoangBaoKhoa support for installment?

Yes, installment payment via credit card.