inverters, pure sine vs modified sine?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=93906
Printed Date: May 06, 2024 at 10:43 AM
Topic: inverters, pure sine vs modified sine?
Posted By: Dragorus
Subject: inverters, pure sine vs modified sine?
Date Posted: May 14, 2007 at 6:31 PM
Hey all....Just wondering if anyone knows the difference?...I am needing an inverter for 3 game consoles, 37" lcd and a 23 inch LCD tv for my tahoe project....I wanted to get a Vector Maxx SST 2000-3000 watt inverter, however come to find out that they use modified sine wave technology and I am hearing rumors about lines on peoples tv's and consoles in their vehicles from this.....Now I saw a post here about PURE SINE technology and supposedly it solves this issue....I don't want noise in my audio system at all.......So some professional advice here would be awsome cause I know the PURE SINE inverters are like twice the price...but I dont care cause I want whats better but I dont want to go overkil if I dont have to...Also is 3000 watt tooo much for what I'm doing??....Thanx
Replies:
Posted By: haemphyst
Date Posted: May 14, 2007 at 7:06 PM
Ture sine wave will assure as noise- and trouble- free an installation as possinle, ESPECIALLY with the video devices. IF the inverter is a higher quality MSW, then you might be able to use it still. If the output is a single step MSW, look elsewhere. Some manufacturers will tell you how many steps their outputs are, the more the better, and will likely still be a bit less expensive than true sine wave.
True sine will cost significantly more, especially in the power ranges that you are looking for, probably 50 to 100% more.
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It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."
Posted By: Dragorus
Date Posted: May 14, 2007 at 7:19 PM
haemphyst wrote:
Ture sine wave will assure as noise- and trouble- free an installation as possinle, ESPECIALLY with the video devices. IF the inverter is a higher quality MSW, then you might be able to use it still. If the output is a single step MSW, look elsewhere. Some manufacturers will tell you how many steps their outputs are, the more the better, and will likely still be a bit less expensive than true sine wave.
True sine will cost significantly more, especially in the power ranges that you are looking for, probably 50 to 100% more.
So how many watts would you recommend for my setup?
Posted By: Ween
Date Posted: May 14, 2007 at 8:15 PM
hi, do you have the product/pieces you are installing? read on the nameplates or owners manuals how much each piece draws, should be in watts(W) or volt-amperes(VA). then add all them up and add say 25%-50% for surges and additional equipment. if no product, then search on manufacturers website for owners manuals. hope this helps mark
Posted By: audiocableguy
Date Posted: May 14, 2007 at 10:48 PM
Spend the money on the Sine. MSW are good for hand tools and non-electronic devices. Xantra makes a Prosine 1000 or 1800 that is very cool. Be prepared to deal with the inefficency of an invertor. The 1800W (aprox. 15 Amps AC) requires a 250 Amp fuse! You sould consider a H/0 alternator before you get to far into your project.
https://www.invertersrus.com/prosine1800.html
Page down and you will find the install manual for the unit. Great info.
Posted By: Dragorus
Date Posted: May 15, 2007 at 1:30 PM
audiocableguy wrote:
Spend the money on the Sine. MSW are good for hand tools and non-electronic devices. Xantra makes a Prosine 1000 or 1800 that is very cool. Be prepared to deal with the inefficency of an invertor. The 1800W (aprox. 15 Amps AC) requires a 250 Amp fuse! You sould consider a H/0 alternator before you get to far into your project.
https://www.invertersrus.com/prosine1800.html
Page down and you will find the install manual for the unit. Great info.
I have a Custom 5 alternator setup on my tahoe and also have 6 x 1700 amp batteries...4 x Batcaps and a 35 farad Digital Cap.
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