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It’s been a great year of deep discounts brought to you by Impact Acoustics but unfortunately all good things must come to an end eventually and they did. 20% Audioholics discount promotion on all of Impact Acoustics products is now a whopping 25% for the entire Month of December. If you are...

We use APC Power Conditioners in all of our reference systems for very good reasons: 1) They are some of the best on the market 2) They are UL/CSA Certified 3) They are snake oil free When our new labs are setup we will be doing some measurements on them to show the benefits of regulated...

SE/R's use Status Acoustics Drivers, including the venerable Scan Speak 9500 tweeter which IMO is one of the best tweeters ever made!

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We try to, which is why we include so many useful measurements which directly attribute to the sound quality of the amp such as SNR, Distortion, Output impedance, Frequency Response Uniformity,etc. Unfortunately most consumers are obsessed with a power rating and get instant gratification...

Not for nothing, but it looks like the Axiom driver was pasted into this photo :confused: At the very minimal it doesn't even look like its to scale. As per Mark Sanfilipo's Comments (our Loudspeaker Guru) The comparisons made between drivers by virtue of magnet size is a farse. There...

This diagram is priceless: http://www.audionut.com/pk4/store.pl?section=6 Gotta stop those pesky electrons from misfiring :) Hey they have to be good since they won Editors Choice Award from The Absolute Sound :p http://www.audionut.com/tas.html

We will have manufacturer input from as many of the major players that are interested. As for THD, I suggest reading up on the series of articles we did on human hearing perception as a starting point. http://www.audioholics.com/techtips/roomacoustics/HumanHearing.php Of course two...

Glancing at the forum discussions on subwoofers here, and at other forums, it is clear to us there is a cult following of sub enthusiasts much like there was with cables until we debunked most of it over the past two years. We will be releasing a subwoofer measurement guide soon that will...

Ikka; Some of your measurements look a bit odd, particularly the data after the xover points which should appear like a brickwall filter but don't. The noise floor is higher than what we see in your measurements below 20Hz which can affect your THD measurements. Examine my inroom and 4pi...

Victor; Thanks again for your feedback. I added a comment about the design in my review based on your discussion here. http://www.audioholics.com/productreviews/avhardware/IntegraResearchRDA71p4.html Raz; There are no DAC's in this amp so you should be all set now :D

And its comments like these why Cube speakers and so called high end audio thrive :rolleyes: Perhaps if Denon put a 2in metal faceplate on it with some side woodpanels and charged an extra 2K it would look nicer :D

I would opt for the PEQ of your sub over what Audyssey is doing for bass. So far our experience is it either does nothing below around 100Hz (original firmware loaded in our 5805 review unit) or causes more problems than in solves (latest firmware currently undertest). I will report more on...

Victor; Thanks for commenting on this issue. Its really odd since I ran into the President of ATI last year at CES and he mentioned it was an ATI designed amp. When I opened up my review unit I saw ATI markings on the transformers with very similar sized xformers of their 2007 series, and...

Weird that you are still hanging on to that notion after all of this time. Take the top off of both ATI and RDA-7.1 amp and you will see almost identicle power supplies, board layouts, back panel chassis layout and the fact that BAT doesn't produce a 7CH amp, especially with one common power...

Ilkaa; you did a nice job with your measurements. Talk about motivation. But there are some limitations to your testing methodology. We are putting the finishing touches on a subwoofer measurement guide which we are hopeful will quickly become an industry standard. Email me your email...

Personally I think if they do remaster the Lamb in SACD, they need to do away with some of the cheesy sound effects in some of the songs. While this is a great album, it could use some updating. The problem with most progressive rock in the 70's is they relied too much of keyboard sounds and...

Correct, which is why its usually better to run all speakers through bass management, and using up to 4 subs in a room to handle anything below 80Hz. This isn't new and has been touted by Toole and THX for years. Sadly, many recording engineers and a particular editor of a print magazine don't...

Extreme frequency response rolloff and increased distortion at high power levels much like you see in subs, but only worse. You rarely see loudspeaker manufacturers disclose frequency response charts at various power levels. As for sound, you can hear disproportionate and non linear bass...