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  • Great Measurement Amp on Fantastic Sale...

    Maybe preaching to the choir a little bit, but the 'Franklin' version of the Dayton APA150 amp is on a blowout sale for $99. https://www.parts-express.com/frankl...ifier--315-144

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    This is a really good amp for doing measurements on speakers in my experience, and for a few reasons...

    * It has enough power to do measurements and really test the output on most speakers as you get farther along during crossover prototyping,

    * It is pretty durable, with short circuit protection, I can vouch for that myself. After a short on mine while prototyping a crossover, it clicked and went on fan-protect mode with a red light on the front. After finding the short and removing, an off/on cycle set things back to normal,

    * It is also a subwoofer amp with switchable low-pass crossover, so it's good for messing with subwoofers for experimenting. I've used that feature on a normal speaker to find an air leak on a woofer, (so the rest of the mid/upper frequencies wouldn't mask where the noise was coming from,)

    * Along with the sub amp feature, it will auto-on if you want,

    * It is small enough to fit in smaller spaces... though it is heavy.

    * It can be bridged for 150'ish watts into 8 ohms... though I've used it bridged here and there with a 4 ohm sub without the fan even coming on.

    * It's old school transistor driven, and non-switching power supplied for less possible issues with noise.


    Not to sound like a cheerleader or anything, but if you've been waiting to pick up a good measurement amp, I really like this one for that purpose... and $99 it just a fantastic deal. It feels like one of those old-school beefy and heavy amps that seems like it will last for 20-30 years.

    If I didn't already have two...

    TomZ
    Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
    *Part 2 *Gluing multiple curved laminations of HDF

  • #2
    Yeah, i'm sitting in the choir with 2 right now. I bought them back when they were 93 dollars I think. The price went up to 100 plus, glad to see they reduced the price again. One of them was working great with my TV while testing. I did have problems with ground loop noise that was not present with my Yamaha receiver, but I figured it out.

    It has taken restraint not to fill my closet with them, they are so versatile.

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    • #3
      Thanks Tom
      I was trying to restrain myself, but really, I've smoked several Class D amps during crossover prototyping and the old vintage Class A/B amps that i have are way big. This fe!low hits good specs and nice size.

      I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
      "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

      High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
      SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
      My Voxel min sub Yet-another-Voxel-build

      Tangband W6-sub

      Comment


      • #4
        You guys get what I'm talking about.

        And I forgot one of the best parts... that nice warm "transistory" smell once it gets up to temp!
        šŸ˜
        Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
        *Part 2 *Gluing multiple curved laminations of HDF

        Comment


        • #5
          I've got a Lepai 2020A+ powering a pair of Overnight Sensations TM's in my kitchen and I've been thinking of upgrading to a better amp. I was looking at the Dayton APA150 a while ago but didn't buy one. With this price, I may have to buy this Franklin version. Do you guys think it would be a worth while improvement? Or, is the Lepai good enough?

          Comment


          • #6
            To bad the shipping cost to sweden make the price close to list price in sweden.

            regards//lasse
            Perry Mason talking to his dentist:

            "Do you swear to take the tooth, the whole tooth and nothing but the tooth, so help you God?"

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            • #7
              And apparently, Iā€™m now seasoned!! šŸ˜
              Perry Mason talking to his dentist:

              "Do you swear to take the tooth, the whole tooth and nothing but the tooth, so help you God?"

              Comment


              • #8
                And idea what the difference is from the Dayton? I bought one a while ago. Just bought an open box special, and may buy another at this price. I am going to play with active setup in the future.

                Comment


                • #9
                  Originally posted by tmhutson View Post
                  And idea what the difference is from the Dayton? I bought one a while ago. Just bought an open box special, and may buy another at this price. I am going to play with active setup in the future.
                  Shouldn't be any difference. Someone posted about Franklin a while back, and PE explained that Franklin is PE's brand for installers.
                  It is estimated that one percent of the general population are psychopaths - New Criminologist: Understanding Psychopaths

                  Comment


                  • #10
                    Originally posted by mattk View Post

                    Shouldn't be any difference. Someone posted about Franklin a while back, and PE explained that Franklin is PE's brand for installers.
                    I think I saw different low pass filters listed. The reviews on the PE version made me uncomfortable about purchasing one. (Not that I need one anyway.)

                    Comment


                    • #11
                      Pulled the trigger on one. Maybe in Nov grab another.

                      I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
                      "As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara

                      High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
                      SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
                      My Voxel min sub Yet-another-Voxel-build

                      Tangband W6-sub

                      Comment


                      • #12
                        Originally posted by rpb View Post

                        I think I saw different low pass filters listed. The reviews on the PE version made me uncomfortable about purchasing one. (Not that I need one anyway.)
                        Really? What did you see in the reviews for the Dayton version that concerned you? I'm considering buying one and would like to know before I buy. I thought the reviews looked good...

                        Comment


                        • #13
                          Originally posted by Jeff F. View Post
                          I've got a Lepai 2020A+ powering a pair of Overnight Sensations TM's in my kitchen and I've been thinking of upgrading to a better amp. I was looking at the Dayton APA150 a while ago but didn't buy one. With this price, I may have to buy this Franklin version. Do you guys think it would be a worth while improvement? Or, is the Lepai good enough?
                          This Franklin amp will be a huge step up.

                          Dan
                          _____________________________
                          Tall Boys
                          NRNP Computer Sub
                          The Boxers
                          The Hurricanes
                          The Baronettes
                          Conneccentric
                          UX3

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                          • #14
                            Hmmm, the slope of the Franklin is listed at 18 db/octave and the Dayton at 12 db/octave... both 50-150 adjustable. I'm guessing that's a typo... can't imagine they would be different, but who knows.
                            RPB, good see!
                            jeff, if you often crank it up, the Franklin might be a good step up. Plus it could live on for other uses over the years too. But don't let me spend your dough. šŸ˜
                            TomZ
                            Zarbo Audio Projects Youtube Channel: https://www.youtube.com/channel/UCEZ...aFQSTl6NdOwgxQ * 320-641 Amp Review Youtube: https://youtu.be/ugjfcI5p6m0 *Veneering curves, seams, using heat-lock iron on method *Trimming veneer & tips *Curved Sides glue-up video
                            *Part 2 *Gluing multiple curved laminations of HDF

                            Comment


                            • #15
                              Originally posted by Jeff F. View Post

                              Really? What did you see in the reviews for the Dayton version that concerned you? I'm considering buying one and would like to know before I buy. I thought the reviews looked good...
                              It probably is fine for what you have in mind. I read the reviews that were two or three stars. Sometimes reviews make it harder to decide on a purchase, because some consumers may be unlucky, or may have caused an issue with a product. I have several 5, or 6 channel amps, and really have no use for more. I measure in my HT room/ man cave with the same amp that I use for the system.

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