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 email@example.com
for a prompt reply.
HiVi M8a 8" Aluminum/Magnesium Woofer
How this woofer work in 1.4 cubic feet vented cabinet with a three ways design (Midwoofer and tweeter in separate cabinet), the crossover 500 / 2,500 Hz. What is the port dimension?
I would recommend a 2.5" diameter, 8.5" long port for this which will tune to 30 Hz. A good option for this is below.http://www.parts-express.com/speaker-cabinet-port-tube-2-1-2-id-x-8-1-2-l-flared--260-478
Date published: 2015-10-26
what tweeter and crossover setup should i use with this speaker for my cabinet speakers?
You may want to search the forums, as this can be trick to use in a two way setup. I have them in a .65ft^3 sealed box with a Dayton "silky" tweeter. Crossed @ 1600/6db. I had to use some heavy EQ to get them to sound what I considered good. I am now building a vented cabinet with a three way design including a Tang Band W4-1320sif mid range and a Dayton 500/4000hz crossover.For info on a 2-way read this:http://techtalk.parts-express.com/showthread.php?217277-M8a-DC28F-combohope this helps,Jazz
Date published: 2015-03-31
I am planning to cross this over at 1800hz in a 2-way system, implementing a zobel network. Is the Le you mentioned in the previous comment (1.35mH @1khz) still what I should use? I'm new to crossover design and I'm trying to understand it all.
Using the Le from 1kHz will work fine for this design.
Date published: 2015-03-16
Is the Le value known for this driver? I am interested in trying it as an upgrade to some Dayton classic 8s I have in a 3 way vented 1.5 cu ft box crossed at 300hz. I would like to implement a zobel.
The Le on this driver at 1kHz is 1.35 mH.
Date published: 2015-01-19
Very small sealed cabinet?
How would this woofer fare in a very small sealed cabinet (.25 cubic ft)? I plan to do a 5.1 speaker setup, building all the speakers into the wall so I no longer have towers infront, shelves for the rear, and a large cube sitting in the corner all taking up space. I would like to use a pair of these 8" woofers as my subs, but having them built into the wall seriously limits the size of the cabinet.I'm not an "audiophile", and the speakers this would be replacing is a decent Sony setup with a 12" 180 watt sub that sounds just fine to me, and I've never even really pushed it. So I'm not trying to rattle any windows or anything with them. I would just like them to fairly accurately reproduce low notes and make me feel some shaking when the Death Star blows up and such.As a final thought, the reason this woofer is tops on my list as a sub is because of how visually attractive it is. I would be using either the 4" or 5" version as my mids all around, so having a matching "sub" would make for an attractive setup even when not using it. But I just don't want to spend all this money and time building enclosures inside my walls, to end up with a beautiful looking system that has a low end of 60hz.Anyone have any thoughts on this?
Hi,That size box and type will not produce low end to your liking. The F3 is 74Hz in that size closed box. Even the optimum sealed enclosure isn't going to produce Subwoofer deep bass. This is a woofer designed for 2 or 3-way speaker systems, not subwoofer duty.So, I'd strongly suggest you look for something else for your application. To be honest, you're going to be hard pressed to find anything that is going to produce the type of low end you are desiring in that size enclosure in a typical living room.A lot of car audio subwoofers are designed for smaller enclosures, but even then, sealed designs that small are going to generally require small drivers. Also, they have the cabin gain of the typical car to make up for their lack of output or low end extension in those small boxes. The living room doesn't have the same advantageous transfer function.You might want to think about an infinite baffle setup and look for subwoofers designed for that application instead.Hope this helps.
Date published: 2014-03-09
Recommendations for two woofers in a 2.6 ft3 enclosure
Looking to use either these or the Hi-Vi F8's in tower speaker with dual woofer configuration. Exsisting enclosure has just under 2.6 Ft3. Not sure if this is too large of volume when compaired to the Vas. of driver. Also looking to use P.E. Dayton 2Khz. 2-way X-over part# 260-140. ave not yet made a decision on Tweeters to be used...Any recommendations would be helpful.
Using a pair of the HiVi M8a 8" Aluminum/Magnesium Woofers in a tower with 2.6 cu. ft. may be a little less than optimum for these speakers, however you could compensate by adding a tuned port.The mid upper frequency is at 3khz. Any mid - tweeter that has the sound characteristics you desire should work well. These woofers will be tight and not real deep however their transient responce will be very dynamic and pure.Good Luck
Date published: 2011-09-10