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  • #16
    https://www.nxp.com/docs/en/data-sheet/TDA1517.pdf
    Or if I need more gain:
    https://www.nxp.com/docs/en/data-sheet/TDA1519_CNV.pdf

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    • #17
      Let's make this interesting. For those with multiple amps, do your amps have 'flavors' and do you mate them with certain speakers/genre of music because of this?
      http://techtalk.parts-express.com/fo...khanspires-but
      http://techtalk.parts-express.com/fo...pico-neo-build
      http://techtalk.parts-express.com/fo...ensation-build

      Comment


      • #18
        ...Not really. I don't try to match the amps to the speakers. To me, they either do their job or they don't, I want my amps to be invisible. The NCores are my preference because they do it the best on whatever is plugged into them. It doesn't hurt that they are the highest power amps I have either. ...And they run cold.

        I tend to not listen to things on the PE APA, as I THINK (haven't measured) I hear more distortion on that amp than the others, whether I'm pushing it or not. That's the only amp that has a defined purpose - measuring/testing speakers

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        • #19
          Primary: Crown Drivecore XLS1500 x 2, XLS1000, XLS2000
          Garage: Sonance Sonamp 275SE
          Computer: DTA100
          InDIYana event: Crown Drivecore XLS2000

          The Crowns are clean and powerful, no flavor involved.

          Later,
          Wolf
          "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
          "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
          "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
          "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith

          *InDIYana event website*

          Photobucket pages:
          https://app.photobucket.com/u/wolf_teeth_speaker

          My blog/writeups/thoughts here at PE:
          http://techtalk.parts-express.com/blog.php?u=4102

          Comment


          • Wolf
            Wolf commented
            Editing a comment
            No, the Drivecores are not Ncore based. It is a proprietary integrated circuit chip pioneered by Harman International.
            https://www.youtube.com/watch?v=GrIKOWJnlqM

            To my knowledge, the Purifi, Ncore, Pascal, ICEpower, and Drivecore are the only Class D amps immune to high frequency variance due to load differences.

          • Blenton
            Blenton commented
            Editing a comment
            Do you run those XLS1500's as bridged mono-blocks? I'm told that's all the rage in some circles as it virtually eliminates cross-talk on the output stage but I've never tried it.

          • Wolf
            Wolf commented
            Editing a comment
            I can try it that way, dual bridged monos, as I have speakon speaker cables made to do it. I ran them this way at InDIYana 2017. I normally use them as left front/left surround, and right front/right surround. That way the left and right are always separate once they leave the preamp.

        • #20
          Main amp: Home built Nelson Pass, Firstwatt diyAudio F6. Fed by a B1Korg Nutube preamp, or Motu M4.
          (If you don't think amps make much of a difference - listen to a good class A amp - some of my friends were astonished. )
          Shop amp: 3eAudio TPA3251 board, fed by Khadas Tone Board thru Shitt Vali preamp.

          Comment


          • #21
            QSC RMX850 for the woofers - lots of power. Used up to 150Hz
            Parasound Halo A21 for the mids - lots of power, very clean midrange. Used 150 to 800Hz
            First Watt J2 for the horns - Class A, no crossover distortion, only 25W, but who needs power for a horn. Used from 800Hz up

            None of the amps have flavors; wasn't what I was going for. It is important to avoid crossover distortion when feeding a horn, it's not a pretty sound.
            Francis

            Comment


            • #22
              Originally posted by Kornbread View Post
              Let's make this interesting. For those with multiple amps, do your amps have 'flavors' and do you mate them with certain speakers/genre of music because of this?
              Yup, for sure. I like my Fisher tubes with my sensitive speakers (klipsch fortes) and they definitely have a tube flavor to them. Great detail and what I would call a "full bodied" sound (like a good red wine;) at moderate volume. Love it with acoustic music especially. I use the Yammy for when I want to crank some ac/dc. Plays very clean and accurate with little color to the sound. I find the Marantz a little too boomy in the bottom end with big speakers but it seems to do well with the Classix iis. Matches well with their theme as a fun rockin speaker.
              Carbon13

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              • #23
                The ARC D52b sure sounds different than any of my others. It has noticeably more low end punch and is a little warmer/fuller than the others. I've always credited that with the secret Analog Modules they use in many of their products. It may run in Class A up to a point because it sure runs hot even at very low volume. It's great for small monitors that might be a little on the lean side.

                I can't wait to get my Pass DIY build running. Just need to hunt down some PS caps and thermistors.
                Co-conspirator in the development of the "CR Gnarly Fidelity Reduction Unit" - Registered Trademark, Patent Pending.

                Comment


                • #24
                  Originally posted by mlwebb View Post
                  Main amp: Home built Nelson Pass, Firstwatt diyAudio F6. Fed by a B1Korg Nutube preamp, or Motu M4.
                  (If you don't think amps make much of a difference - listen to a good class A amp - some of my friends were astonished. )
                  Shop amp: 3eAudio TPA3251 board, fed by Khadas Tone Board thru Shitt Vali preamp.
                  Been eyeing the nutube for a while. How do you like the nutube pre? Get the microphonics under control? DIY or manufactured? Cost?
                  http://techtalk.parts-express.com/fo...khanspires-but
                  http://techtalk.parts-express.com/fo...pico-neo-build
                  http://techtalk.parts-express.com/fo...ensation-build

                  Comment


                  • #25
                    Re nutube, sounds very good. Mine will ring a little if tapped, but soon quits - my diy enclosure is quite heavy, which I suspect helps.

                    Re: Cost - I am very good at hiding the cost of my audio projects from myself, could not tell you with any accuracy (: I did replace some of the caps with better ones (per ClaudeG's recommendation in the B1K thread).
                    Attached Files

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                    • #26
                      Ht room- Denon X4000, handful of QSC CX amps for front stage and subs
                      Garage- Old pioneer from late 90's
                      Living room/backyard - Marantz NR1603. I love this thing.
                      Shed - chip amp
                      Master bath- Sonic T-amp of old.
                      Master bedroom - some kind of 2.1 chip amp
                      Builds - C-Killa - Speedsters - LithMTM - Talking Sticks - Pocket Rockets - Khanspires - Dayton RS Center - RS225/28A - Kairos - Adelphos - SEOS TD12X - Dayton 8 - Needles - 871S - eD6c - Overnight Sensations - Tritrix (ported) - Lineup F4 - Stentorians - The Cheapies - Tub Thumpers - Barbells - Tuba HT - Numerous subwoofers - probably missing a few...... :p

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                      • #27
                        I forgot to mention that before I bought my Wyred4Sound ST-500 power amp, I had a Quad 909 for many years and loved it (people who like their tubed amp's midrange would like the 909, too, or its current successor). I thought it had become defective in one channel and replaced it with the ST-500. Turned out the 909 was fine, but I really liked the additional headroom of the ST-500, so I sold the 909.
                        Paul

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                        • #28
                          Nothing too fancy here - Dayton APA150, an 80's Kenwood receiver, and a Lepai 2.1 plate for the garage.
                          See my projects on Instagram and Facebook

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                          • #29
                            There are so many neat different solutions. One thing that struck me as funny reading these is that we all seem to have garage systems

                            Comment


                            • #30
                              Originally posted by stephenmarklay View Post
                              There are so many neat different solutions. One thing that struck me as funny reading these is that we all seem to have garage systems
                              Ha, lol, forgot that, 90s JVC prologic receiver running stereo in the garage

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