Recent content by DonH57

Agree that posts tend to be negative as that's what gets people riled up enough to post (case in point...) Can't ascribe it just to Christmas as that was the third time in the past 18 months or so and was at various times through the year. Each time was several emails/contact posts over 30~60...

Not recently, on my list, some other Life things came up. I think JBL lost their key guy for SDP/Trinnov product support so the only way is to contact your dealer and have him advocate to JBL for you. That usually works though did not last time; it was a couple of weeks before Christmas, not...

I have been unable to get support like HW/SW updates for my SDP-75 for over two years now. Emails and contact forms simply go unanswered. It took a dealer's intervention and escalation to get my last update and that was nearly three years ago. I'd be very hesitant to buy electronics (at least)...

I like Ralph a lot and we interact on several forums. I am not sure that article is relevant for this thread, however, as the Outlaw amplifiers and AVR in question are designed as voltage sources, and speakers mentioned are designed to be driven by voltage sources, as are most consumer amps and...

I'd leave it the way it is. The Outlaws have more power and as separate amps do not share power supplies so using them to drive the front three, which generally consume the most power and deliver the most sound, makes sense to me. Bi-amping with an AVR provides essentially no power benefit...

Four Rythmik F12s in a 13'3" x 17'7" room with one irregular (angled) wall controlled by a JBL SDP-75 (Trinnov Altitude 32 with JBL tweaks and badging). Four subs to help smooth the frequency response; output is more than enough. REW says -3 dB around 7 Hz though have a couple of nulls I could...

Awful news, very sorry for John's loss!

Nice cables, decent price for an active cable.

I would guess the amp will go before the speaker... The reason boosting a true null is a bad idea is that it is caused by the direct sound, D, being cancelled by the reflected sound, R, so you get D - R = 0. If you amplify by 10, it also amplifies the reflected power, so 10D - 10R = 0 (still)...

1. The life of any speaker is a function of many variables including driver construction and amplifier construction and components for an active speaker like a subwoofer. I have 12+ year old subs that are doing just fine, some 20+ year old speakers that still meet spec, and some that have...

After going through three high-end AVR/AVP units in about five years, the last somewhat a nightmare, I purchased a JBL Synthesis SDP-75 (Trinnov 32) 24-channel unit my dealer was able to get for me at a "good" (but still very expensive) price. Their support and upgrades should make this the last...

I did not say that. However, I do not trust my ears without reservation, either. And I am an engineer, so my science is applied, not just theoretical. Differences are readily measured, less readily heard, but certainly possible. IMO/IME.

Sorry, I meant to quote the OP, was not responding to your post. I usually have little interest in other listener's comparisons; too often too biased and all that jazz. And I am certainly in no position to afford a $90k DAC. As I said if he -- or you -- feel R2R sounds best then by all means go...

I am not sure what you mean by "build". I have "built" DACs in the sense that I designed DAC ICs (mostly, not many discrete designs) at the transistor level (albeit mostly well above audio frequencies). I am guessing you mean to buy the interface and DAC chips, and perhaps design and build your...

If all you want is to manage the subs, you could try an Anti-Mode: http://www.dspeaker.com/en/products/anti-mode-8033.shtml They also have full-range models: http://www.dspeaker.com/en/products.shtml HTH - Don