Home Theater

Re: Ask a THX Technician - Home Theater Questions

Certified THX Technician — Fri, 25 Jul 2008 02:03:36 GMT

lakedmb:
DrWho:
So what does becomming a certified technician actually entail?
\

I was wondering the same thing......

It entails spending some cash and taking a 3 day course on THX, all their technologies, how and why they work etc....a lot of it is hands on calibration, testing etc...and a lot of it is theory and calculations ...people on the course range from home theater installers who want to learn how to do things a "better" way, manufacturing engineers from speaker and receiver companies, sales guys ...you name it ....

then you have to write a test and pass with a certain grade to become certified. Then you have to re-write the test every 2 years or so to keep your certification current and valid.

Re: Ask a THX Technician - Home Theater Questions

lakedmb — Tue, 22 Jul 2008 18:27:15 GMT

DrWho:
So what does becomming a certified technician actually entail?

\

I was wondering the same thing......

Re: Ask a THX Technician - Home Theater Questions

Tim_in_NC — Tue, 22 Jul 2008 14:34:26 GMT

THX Tech ... Hopefully you can help me out here: http://forums.klipsch.com/forums/p/107153/1080833.aspx#1080833

Re: Ask a THX Technician - Home Theater Questions

fini — Tue, 22 Jul 2008 13:35:10 GMT

Dang, I wish I had a question!

Re: Ask a THX Technician - Home Theater Questions

DrWho — Tue, 22 Jul 2008 09:41:32 GMT

So what does becomming a certified technician actually entail?

Re: Ask a THX Technician - Home Theater Questions

autumnwillow — Tue, 22 Jul 2008 07:03:51 GMT

Well, right now im just sitting in front of my laptop.

I do have plans on buying a TV or a projector, that would be my next project after I setup my sound system.

I want a surround sound all over the room even though im only watching on a laptop.

I will also use the sound system for music.

I listen more compared to watching. Not too loud though as I only live in an apartment for now.

Re: Ask a THX Technician - Home Theater Questions

Certified THX Technician — Mon, 21 Jul 2008 17:47:30 GMT

are you pumping the video out as well to a TV or projector and want the surround sound to fill the room? or are you just sitting watching it on your laptop and want surround sound around you in front of your laptop?

Re: Ask a THX Technician - Home Theater Questions

autumnwillow — Mon, 21 Jul 2008 10:12:52 GMT

Yes they are all computer speaker systems.

Not sure with the room size though, I have plans on moving somewhere else by December. But I think I'd still fall for the 10x10 room.

Yes my laptop has optical out. But i'm buying this express card.

http://us.creative.com/products/product.asp?category=1&subcategory=208&product=16642&nav=1

http://us.creative.com/products/product.asp?product=16741&dcs.acsF_P=Sound%20Blaster%20X-Fi%20Xtreme%20Audio%20Notebook&dcs.acsF_A=Surround%20Sound%20upgrade%20kit%20for%20ExpressCard%20Sound%20Blaster&dcs.acsF_X=Product%20Img

Or am I better off buying the USB set?

http://us.creative.com/products/product.asp?category=1&subcategory=208&product=17751&nav=1

Here's my laptop specs, think you might need it.

Sony VAIO AR94US - Owner Made.

Intel® Centrino® Duo Mobile Technology
Intel® Core?2 Duo Processor
T7700
(2.4GHz, 4Mb L2, 800MHz FSB)
Intel® 965PM Express Chipset
Intel® Pro-Wireless 3945 a/b/g Card
17in. WUXGA (1920 x 1200)
TFT colour display
(Clear Bright High Colour LCD)
Camera embedded (Motion Eye)
Nvidia GeForce Go 8600M GT 256MB
Dual display 3D GFX acceleration
Blu-ray Disc Drive
2.0Gb DDR2 667MHz Memory
400Gb 7200rpm SATA HDD
Built-in 10/100/1000 Gigabit LAN
. . . On board 56Kb Modem
Memory Stick Slots / Bluetooth

I haven't bought anything yet though. I just want to get out of this 3d stereo my laptop has and upgrade it to a good 5.1/7.1 system.

Re: Ask a THX Technician - Home Theater Questions

samson — Mon, 21 Jul 2008 05:08:28 GMT

Yes, 15 is the rear wall, the listening position from the rear wall is about 6ft and the listening position(all seating) is 9ft give or take 1ft?

Re: Ask a THX Technician - Home Theater Questions

Certified THX Technician — Mon, 21 Jul 2008 05:01:34 GMT

samson:
15' x 20'

Is the 15' wall the rear?

How far back is the rear wall from the listening position and how wide is the listening position (all seating) in relation to the width of the back wall/room?

Re: Ask a THX Technician - Home Theater Questions

samson — Mon, 21 Jul 2008 04:27:00 GMT

15' x 20'

Re: Ask a THX Technician - Home Theater Questions

Certified THX Technician — Mon, 21 Jul 2008 04:10:14 GMT

samson:
THX, I was going to use 4 RS-3II's for my rear surrounds, would I be better off using my RB-51's for the SBL & SBR?

4 RS-3ii's for your rear's? How large is that back wall? 100 ft? You should only need 2 at most for an average large room. However....

Only the side surrounds should be bi-pole or di-pole, like the RS-3ii's....rear speakers should be front firing monopole speakers, like the RB-51. You don't need to disperse the rear sound field as you do on the sides ...tests have shown that it is much harder to localize sound from the rear than from the sides, which is why even just one rear (6.1 config) often will do the trick. Don't forget ...the dedicated rear surround track has very minimal content in most cases...most films barely have an actual single rear track let alone a dual rear track ...so not many speakers are needed to reproduce the sound that gets sent back there. And you would only use 2 surrounds on each side if you had 2 rows of seating or more.

So, if you are going with a full 7.1 setup, use 2 RB-51's across the back, approx. 2ft above the listeners ear position or 2m from the floor, spaced 1-2ft apart for THX ASA config, and 60 degrees apart (30 degrees from center on each side) for discrete 7.1 config. In a 6.1 setup, just use 1 RB-51 at the same height in the center of the wall.

What are the dimensions of your room?

Re: Ask a THX Technician - Home Theater Questions

Certified THX Technician — Mon, 21 Jul 2008 03:34:12 GMT

colterphoto1:
Welcome to the Madness THX!
Michael

Thanks ...I always liked the phrase "Klipschome" ....

Re: Ask a THX Technician - Home Theater Questions

samson — Mon, 21 Jul 2008 03:28:30 GMT

THX, I was going to use 4 RS-3II's for my rear surrounds, would I be better off using my RB-51's for the SBL & SBR?

Re: Ask a THX Technician - Home Theater Questions

colterphoto1 — Mon, 21 Jul 2008 03:15:59 GMT

Welcome to the Madness THX!

Michael