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Vifa NE265W-08 10" Subwoofer Speaker
What Size box ported/tuned, and sealed do you recommend?
Ported: 1.8 cubic feet with a 3" diameter port that is 11" long for a tuning of 30 Hz.Sealed: 0.6 cubic feet for an F3 of 61 Hz.
Date published: 2013-07-20
OK for live bass?
I'm in the process of designing a 2x10" cabinet for live 4 string electric bass performance. The cabinet will be driven by a class D bass amp that delivers 250W into a 4 ohm load. One of the design goals is to have the cabinet be able to achieve a -3dB of 40hz (roughly the fundamental frequency for the low E string on a 4 string bass). Typical live bass drivers aren't up to the task, so I'm considering using one of these to augment an 8 ohm Eminence basslite 10".Using an NE265W-08 along with the Basslite 10" will bring the -3db to 40hz in a 1ft3 box tuned to 35hz, or 55hz in a sealed enclosure. Both are far better than 70hz -3db achievable with a single basslite 10" in a 1ft3 box or the 67hz -3db that can be done with two basslite 10".So, my question is: should I realistically expect years of solid performance from this driver in a live sound situation - either in a ported or sealed box? Thanks!
The power will be achieved well in total at 125 W each driver, although when using two different drivers each will use the power differently. One will invariably be louder than the other, but may not be noticeable.A 1 cf box for two subs is way too small, IMO. Expect to use up to 1.25 cu ft for this sub after accounting for vent displacement.As for years of solid live performance?: this driver isn't marketed as a pro driver, so you're on your own when it comes to durability in extreme conditions. But listen, for the sale price it would certainly be worth the gamble. I love the tone of this speaker and can imagine that it would do justice to your bass guitar.
Date published: 2013-09-14
Used with 70 watt Amplifier?
I have a Old Mitsubishi m10 Downfiring Sub. 1.1cu. ft with built in 70 watt amplifier which was the first Box that I veneered and need a 10 "sub" driver to preform well with the 70 watt amp. 6 ohm min. any suggestions?
Determine if a replacement driver is suitable for downfiring application by using this sag factor formula:Percentage of Sag = 24,849 / ( Xmax * Fs²)If Sag% < 5%, the driver may be mounted down (or up) firing. (Xmax must be in milimeters.)With this VifaNE265W-08, the sag percentage comes out to 5% which is at the greatest allowable limit. I would feel more comfortable using a lower sag factor driver in a downfiring cabinet if I were you.Is the cabinet sealed or vented? Use that to help you find the best replacement driver. A little trick you can do is to use the driver's specs to help determine if it might be better suited for one alignment or the other. Divide the Fs by Qes to find EBP. 50 or below is suited for sealed, 90 or greater is suited for vented, with a gray area in between. This Vifa's EBP is 74, and I think that puts it well into "best as vented".The available power, at 70 watts, is not as important as the other factors I pointed out. But I found this driver to be much for efficient than the original I replaced in my situation and now have a subwoofer with deeper and more robust response. I would think that your available power is enough.
Date published: 2013-09-22
Sealed for Car Audio?
I'm putting together a subwoofer system for my car and I was thinking of using two of the Vifa NE265W-08 10" Subwoofers in a 1.5 ft3 sealed enclosure.I was wondering if that would work well with cabin gain in a mid-sized sedan or if I'd be better off using the 12" version or another driver all together?My goal is sound quality not spl so as long as it can play cleanly to around 110 db @30hz I'll be happy.
I really admire the quality of this sub, used in my living room in a reloaded box. It outperforms the original driver by miles. Sound quality is the first thing you think when you hear it, so it's a good idea to look at this driver for your project plans.I modeled your project in WinISD (as I did before making my own buying decision), and it models pretty well as a two-driver in 1.5 cu ft sealed. You'll definitely get the SQ you desire, with a QTC of 0.713, but I think no amount of cabin gain is going to push SPL levels up to 110 db at 30Hz. Limit the amplifier power to 200 W (actual RMS) so that the drivers don't overexcurt above 30Hz, but instead will be safe down to inaudible.At 50 to 60 Hz you'll have your 110 db achievement.
Date published: 2013-10-08
Peerless or Vifa?
The manual linked in the resources is about a Peerless branded driver - that looks exactly like the one on the photo.Which one is it?
Vifa, Peerless and Scan-Speak are all owned by the parent company Tymphany. The actual brand that is listed on the stock we have is Vifa, although the only difference in specs will be the name associated with them.
Date published: 2013-02-27
What is the effective volume of the driver
I've been looking through the specs for the driver and have not been able to locate the effective volume of the driver for calculating the actual required box volume. Do you have that information available?Thanks.
The effective volume of the driver is 0.051 cubic feet.
Date published: 2013-09-29