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  1. Any difference in drivers?

    DIY Subwoofers - General Discussion
    I currently am using some Vienna Acousic Mozarts for my mains and a DIY Sealed Dayton Ultimax PR15 for my sub. I have it at about 40% volume on the 500 watt plate amp. I listen to 90% Home Theater in my living room. I have noticed with it's current location that the room nodes are pretty bad...
  2. Difference trace in the RTA

    REW Forum
    I may have just missed the button. Is it possible to get the live difference between the reference and the mic feed on the RTA?
  3. Difference in Measured SPL - Sub vs. Sub+Mains

    REW Forum
    Posted this question last month in the subwoofer forum and one suggestion was to post it here to see if this was something that could be solved in REW. Below are a couple of shots of 3 scans - just the sub; just the mains; and combined. The first with no smoothing, the second with 1/6 smoothing...
  4. Rookie question of the day: difference between SPL meter and room mic?

    SPL Meters | Mic's | Calibration | Sound Cards
    I'm looking to do a crossover and roomEQ with REW. Do I need a room mic and an SPL meter?
  5. The difference between a toroidal and I-E transformer in amps

    Home Theater Receivers | Processors | Amps
    So this discussion came up and I wanted to put some facts together about the differences between using the standard power supplies found in most amps/receivers and toroidal transformers. A toroidal uses a Doughnut shaped core & is much slimmer than a conventional (E-I) transformer allowing for...
  6. Difference between GTO 1514 vs GTO 1514D

    DIY Subwoofers - General Discussion
    Hi I just got a JBL GTO 1514 subwoofer driver, and I'm wondering is it just the exact same subwoofer as a JBO 1514D with just 1x voice coil disconnected? JBL 1514 Voice coil resistance: 3.8 ohm Total impedence: 4 ohm Voice coil size: 2" Sensitivity: 93 dB 350W RMS JBL GTO 1514D Voice coil...
  7. Difference; Internal Vs External Cal Sweep

    REW Forum
    Difference; Internal Vs External Cal Sweep: Maybe someone can help explain the source of an issue I have been struggling with. I need a wav file for both the REW 44kHz calibration sweep and the REW measurement sweep I use (12-20k). Background: I have noted for that SPL and phase responses...
  8. What is the physical difference between a car subwoofer box and a home theater subwoofer box/enclosure?

    DIY Subwoofers - General Discussion
    As far as materials, aren't they the same? If there were a place for a plate amp, wouldn't that be the same? This makes the big assumption the box has the correct cubic feet, but most were about 3^3ft that I saw. There are many out there, and some are pretty cheap used. Is the only difference...
  9. How much of a difference room treatment make?

    Home Audio Acoustics
    Hi all, Have you ever wondered how much of a difference room treatment can make ? Personally I understand what is the purpose of it. Unfortunately I've never experienced it. I live in apartment and for now I just don't have the money and space to setup a true theater room with proper EQ and...
  10. Ypao And Ypao R.s.c Difference And Advanced Configuration

    Audio Processing
    Hi guys, I've written a blog article about YPAO and YPAO R.S.C. if you're interested. There isn't a lot of information on the internet or forums about it and some of it is pretty misguided. Please read it, share it and comment if you like. I hope it will add value to those who are considering...
  11. Help! my room have a sweet spot -10db difference

    REW Forum
    Ok, I hope there is someone out there that want to help a beginner. I have the UMICK-1 for the measurements, and I have a (5 meter x 4 meter ?) room. I had (as on picture) 2x 12" sub that is not replaced with another SVS 13 ULTRA. was not happy with the sound from my SVS, so I got one more...
  12. Amp to speaker ohm difference?

    General Service and Technical Information
    I recently picked up a pair of MTX P215H speakers, 4ohm 300 watt RMS 1200 watt total power frequency response 36hz-20khz. My amp\receiver is a Pioneer Elite VSX 70, the manual says the unit supports speakers with a nominal impedance of 6 to 16 ohms. My question is will it hurt or effect my...
  13. Can the size of the power supply make a difference?

    Home Theater Receivers | Processors | Amps
    Here is some detailed factual information to backup statements that I have made for many years regarding receivers that have larger power supplies (heavier in weight) always do better with coming closer to actual specified power. It has been a subject of heated debate at times and I want to put...
  14. Does the high end stuff make a big difference?

    Home Theater System Recommendations
    Hello one and all! I am purchasing the following components for my home theater (questions to follow): LF & RF: Martin Logan Ethos Center:Martin Logan Stage X Subwoofer: Martin Logan Descent i SL, SR, RL, RR: Martin Logan Vanquish Now for the questions... 1. One of the authorized dealerships...
  15. Huge Volume difference???

    General Service and Technical Information
    Forgive me if this is another one of my stupid questions but I gotta know. Why depending on what movie or CD etc. that you are watching does it impact how high you must turn up the volume? Sometime I will be watching a movie or listing to a CD and be completely blown away at the imaging, crisp...
  16. Difference between 1080p and WXGA

    Home Theater Projectors
    Hiya people, This is my first post, so please feel free to move it t the appropriate forum. I currently use my DLP projector for flight simulation. I have an Optoma EW605ST short throw which i display at its native WXGA resolution. I view the projected image from 5 feet away from the screen...
  17. Difference between sonosub/box?

    DIY Subwoofers - General Discussion
    I have a question about sono tubes... The fact that they are cheaper, lighter in weight, take up less floor space, and overall simplicity makes me wonder why people build boxes more often? Is the sounds worse in a sono tube? Reason I ask is all this talk about ported being twice as powerful as a...
  18. Ports - Foward vs Floor vs Rear - Any difference?

    Ported Subwoofer Build Projects
    Hi Im starting to draft a ported enclosure for a single 15. Does it make any difference making the port fire forward, out the rear or out the bottom into the floor? Thanks
  19. Wooden blocks under amps... do they make a difference?

    Home Theater Receivers | Processors | Amps
    I was at my local "audiophile" HT shop and they had some beautiful looking equipment in there. But I noticed these wooden blocks underneath amps in the home theater rooms. They looked almost like butcher blocks. Big slaps of Maple underneath the amps. So you know I had to ask... "What are...
  20. New audio interface... what's the difference?

    Pro Audio
    Hello! This is my first post :) I was sent here because of the REW which I wish to use in my little home studio. I bought a dbx RTA-M omni directional mic for this purpose, still need to invest in the SPL meter. In any case, this wasn't the reason for the post. I'm an EDM producer and for...
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