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  • Pass Labs INT-250 integrated

    I'm curious if anyone owns the Pass Labs INT-250 integrated amp and how they feel about its performance. Please include the speakers you are using. If you were using a separate preamp and amp prior to the Pass, did you feel that your system remained as good with separates or if you took a step backward.

    Thanks!
    TW Acustic TT with Ref motor & controller; Tri-Planar Arm; Transfiguration Proteus Cart; Arcam R Phono Preamp; Bluesound Vault-2 Music Server & Streamer; VTL 6.5 preamp, Pass Labs 150.8 Amp; Piega C711 Loudspeakers; Symposium Osiris Rack; Symposium Platforms and Roller Blocks plus grade 2.5 Balls; Shunyata Hydra 8; Shunyata AC Cords; Synergistic Research Atmosphere Excite Level 2X AC Cord & Level 3 HC AC Cord , Audio Art Ref balanced ICs, MIT Oracle IC and Magnum Speaker Cables; Schiitt Headphone Amp; Sennheiser HD700 Headphones; KLAudio Ultrasonic Record Cleaner

  • #2
    Are you using Pass separates currently?
    Hugh Nguyen
    ACA

    Comment


    • #3
      Originally posted by Hugh View Post
      Are you using Pass separates currently?
      No Hugh. Currently Hovland HP-100 and Threshold T-200. That's the Threshold after Nelson Pass.
      TW Acustic TT with Ref motor & controller; Tri-Planar Arm; Transfiguration Proteus Cart; Arcam R Phono Preamp; Bluesound Vault-2 Music Server & Streamer; VTL 6.5 preamp, Pass Labs 150.8 Amp; Piega C711 Loudspeakers; Symposium Osiris Rack; Symposium Platforms and Roller Blocks plus grade 2.5 Balls; Shunyata Hydra 8; Shunyata AC Cords; Synergistic Research Atmosphere Excite Level 2X AC Cord & Level 3 HC AC Cord , Audio Art Ref balanced ICs, MIT Oracle IC and Magnum Speaker Cables; Schiitt Headphone Amp; Sennheiser HD700 Headphones; KLAudio Ultrasonic Record Cleaner

      Comment


      • #4
        Originally posted by 1morerecord2clean View Post

        No Hugh. Currently Hovland HP-100 and Threshold T-200. That's the Threshold after Nelson Pass.
        l

        I see.

        I am not sure about the current offerings from Pass but, personally, I found their older models a little dry for my taste.
        We have had a few customers who sold their Pass Pre & Monos and got our Melody Integrated, be it AN300B or AN211 or AN845.
        Case in point: http://hometheaterreview.com/melody-...fier-reviewed/
        Hugh Nguyen
        ACA

        Comment


        • #5
          what is the INT-250? a 125WPC stereo class A/B integrated amp?
          Magnepan 1.6 QR Loudspeakers, Amherst A-2000 MOSFET 150 WPC Amp, Conrad Johnson PV-10A Modded Tube Line & Phono Stage, Electrocompaniet MC II Class A Head Amp, Shelter 501 Mark II Cart (St) , Graham Engineering 2.2 Tonearm (St) , VPI Aries-1 Turntable (St) , VPI Clamp, Denon DL-102 Cart, (M) , Luxman Tonearm (M) , Kenwood KD-500 Turntable (M) , Michell Clamp, Marantz 20B Analog FM Tuner, Pioneer SACD, Onkyo DX-6800 CD Transport, DIY 24B/192K DAC, Sennheiser HD-300 Headphones, Headroom Max Balanced Headphone Amp, DIY Silver Interconnects

          Comment


          • #6
            Originally posted by JCOConnell View Post
            what is the INT-250? a 125WPC stereo class A/B integrated amp?
            It's the latest in their .8 series integrated 250w channel. Neil Gader gave it a fantastic review this month.
            TW Acustic TT with Ref motor & controller; Tri-Planar Arm; Transfiguration Proteus Cart; Arcam R Phono Preamp; Bluesound Vault-2 Music Server & Streamer; VTL 6.5 preamp, Pass Labs 150.8 Amp; Piega C711 Loudspeakers; Symposium Osiris Rack; Symposium Platforms and Roller Blocks plus grade 2.5 Balls; Shunyata Hydra 8; Shunyata AC Cords; Synergistic Research Atmosphere Excite Level 2X AC Cord & Level 3 HC AC Cord , Audio Art Ref balanced ICs, MIT Oracle IC and Magnum Speaker Cables; Schiitt Headphone Amp; Sennheiser HD700 Headphones; KLAudio Ultrasonic Record Cleaner

            Comment


            • #7
              250WPC? Ive never heard of that much power in an integrated. It's usually not done because of all the heat affecting the preamp section.
              Magnepan 1.6 QR Loudspeakers, Amherst A-2000 MOSFET 150 WPC Amp, Conrad Johnson PV-10A Modded Tube Line & Phono Stage, Electrocompaniet MC II Class A Head Amp, Shelter 501 Mark II Cart (St) , Graham Engineering 2.2 Tonearm (St) , VPI Aries-1 Turntable (St) , VPI Clamp, Denon DL-102 Cart, (M) , Luxman Tonearm (M) , Kenwood KD-500 Turntable (M) , Michell Clamp, Marantz 20B Analog FM Tuner, Pioneer SACD, Onkyo DX-6800 CD Transport, DIY 24B/192K DAC, Sennheiser HD-300 Headphones, Headroom Max Balanced Headphone Amp, DIY Silver Interconnects

              Comment


              • #8
                Originally posted by 1morerecord2clean View Post

                It's the latest in their .8 series integrated 250w channel. Neil Gader gave it a fantastic review this month.
                does he write for a magazine, and if so, which one?
                Magnepan 1.6 QR Loudspeakers, Amherst A-2000 MOSFET 150 WPC Amp, Conrad Johnson PV-10A Modded Tube Line & Phono Stage, Electrocompaniet MC II Class A Head Amp, Shelter 501 Mark II Cart (St) , Graham Engineering 2.2 Tonearm (St) , VPI Aries-1 Turntable (St) , VPI Clamp, Denon DL-102 Cart, (M) , Luxman Tonearm (M) , Kenwood KD-500 Turntable (M) , Michell Clamp, Marantz 20B Analog FM Tuner, Pioneer SACD, Onkyo DX-6800 CD Transport, DIY 24B/192K DAC, Sennheiser HD-300 Headphones, Headroom Max Balanced Headphone Amp, DIY Silver Interconnects

                Comment


                • #9
                  Originally posted by JCOConnell View Post

                  does he write for a magazine, and if so, which one?


                  TAS. Pass Labs has been around a very long time. This is a SS design, no tubes. It only runs class A for the first 15w than goes to B for cooler operation.
                  TW Acustic TT with Ref motor & controller; Tri-Planar Arm; Transfiguration Proteus Cart; Arcam R Phono Preamp; Bluesound Vault-2 Music Server & Streamer; VTL 6.5 preamp, Pass Labs 150.8 Amp; Piega C711 Loudspeakers; Symposium Osiris Rack; Symposium Platforms and Roller Blocks plus grade 2.5 Balls; Shunyata Hydra 8; Shunyata AC Cords; Synergistic Research Atmosphere Excite Level 2X AC Cord & Level 3 HC AC Cord , Audio Art Ref balanced ICs, MIT Oracle IC and Magnum Speaker Cables; Schiitt Headphone Amp; Sennheiser HD700 Headphones; KLAudio Ultrasonic Record Cleaner

                  Comment


                  • #10
                    I don't care how long Pass has been around, if I planned to get any power out of that 250 wpc amp, I want it as a separate, not an integrated for heat reasons alone. Even SS amps can get hot when pushed a little. Plus an AB amp that runs warm or hot with no signal is generally biased more into class A which is good. Even if warm doesn't affect performance of the preamp section, higher tempertures mean shorter lifetimes of the circuit components.
                    Magnepan 1.6 QR Loudspeakers, Amherst A-2000 MOSFET 150 WPC Amp, Conrad Johnson PV-10A Modded Tube Line & Phono Stage, Electrocompaniet MC II Class A Head Amp, Shelter 501 Mark II Cart (St) , Graham Engineering 2.2 Tonearm (St) , VPI Aries-1 Turntable (St) , VPI Clamp, Denon DL-102 Cart, (M) , Luxman Tonearm (M) , Kenwood KD-500 Turntable (M) , Michell Clamp, Marantz 20B Analog FM Tuner, Pioneer SACD, Onkyo DX-6800 CD Transport, DIY 24B/192K DAC, Sennheiser HD-300 Headphones, Headroom Max Balanced Headphone Amp, DIY Silver Interconnects

                    Comment


                    • #11
                      Originally posted by JCOConnell View Post

                      does he write for a magazine, and if so, which one?
                      Neil is a long time contributor to TAS and a good reviewer .
                      Myles B. Astor, PhD, Administrator
                      Senior Editor, Positive-Feedback.com
                      ________________________________________

                      -Magico S5 Mk.2 speakers with SPod feet
                      -cj 40th Anniversary ART300 monoblock amplifiers
                      -Merrill Audio Elemente 116 monoblock amplifiers
                      -cj GAT preamplifier Series 2 preamplifier
                      -Doshi V3.0 phonostage
                      -VPI Vanquish direct-drive turntable
                      -VPI 12-inch 3D Fat Boy dual pivot tonearm, VPI 12-inch 3D Fat Boy gimballed and SAT LM-12 arm
                      -Lyra Atlas SL, Fuuga, vdh Colibri Master Signature, MOFI Master Tracker, Sumiko Songbird cartridges
                      -Technics RS1506 with Flux Magnetic heads, Doshi V3.0 tape stage (balanced)
                      -Assorted cables including Transparent XL Gen. 5, Allnic cables, Skogrand, Viero, Kubala-Sosna, MG Audio, Audience Au24SX, Genesis Advanced Technologies Power Cords
                      -Accessories including Stillpoint Aperture panels, Cathedral Sound panels, Furutech NCF Nano AC receptacles; Silver Circle Tchaik 6 PLC, Symposium ISIS and SRA Craz racks, Audiodharma Cable Cooker, Symposium Ultra and assorted SRA platforms.

                      Comment


                      • #12
                        Originally posted by JCOConnell View Post
                        I don't care how long Pass has been around, if I planned to get any power out of that 250 wpc amp, I want it as a separate, not an integrated for heat reasons alone. Even SS amps can get hot when pushed a little. Plus an AB amp that runs warm or hot with no signal is generally biased more into class A which is good. Even if warm doesn't affect performance of the preamp section, higher tempertures mean shorter lifetimes of the circuit components.
                        Valid point.

                        On the other hand, just may be, they have a better way to dissipate heat more efficient?
                        I just don't know.

                        Hugh Nguyen
                        ACA

                        Comment


                        • #13
                          Originally posted by Hugh View Post

                          Valid point.

                          On the other hand, just may be, they have a better way to dissipate heat more efficient?
                          I just don't know.
                          It looks like they have kept heat down two ways. 1. Less class A bias (only 15W) 2. Massive massive heat sinks (unit weighs 105 lbs). I don't like either solution. For a 500W amp, I would rather go with separates.
                          Magnepan 1.6 QR Loudspeakers, Amherst A-2000 MOSFET 150 WPC Amp, Conrad Johnson PV-10A Modded Tube Line & Phono Stage, Electrocompaniet MC II Class A Head Amp, Shelter 501 Mark II Cart (St) , Graham Engineering 2.2 Tonearm (St) , VPI Aries-1 Turntable (St) , VPI Clamp, Denon DL-102 Cart, (M) , Luxman Tonearm (M) , Kenwood KD-500 Turntable (M) , Michell Clamp, Marantz 20B Analog FM Tuner, Pioneer SACD, Onkyo DX-6800 CD Transport, DIY 24B/192K DAC, Sennheiser HD-300 Headphones, Headroom Max Balanced Headphone Amp, DIY Silver Interconnects

                          Comment


                          • #14
                            Originally posted by MylesBAstor View Post

                            Neil is a long time contributor to TAS and a good reviewer .
                            I have always thought so Myles. Actually he and I thru serendipity ended up in the lobby of the Flamingo at CES two years running at the same time last day. We stopped and chatted for a good half hour both times and spoke about our favorite rooms. Very down to earth and forthcoming era on I thought.
                            TW Acustic TT with Ref motor & controller; Tri-Planar Arm; Transfiguration Proteus Cart; Arcam R Phono Preamp; Bluesound Vault-2 Music Server & Streamer; VTL 6.5 preamp, Pass Labs 150.8 Amp; Piega C711 Loudspeakers; Symposium Osiris Rack; Symposium Platforms and Roller Blocks plus grade 2.5 Balls; Shunyata Hydra 8; Shunyata AC Cords; Synergistic Research Atmosphere Excite Level 2X AC Cord & Level 3 HC AC Cord , Audio Art Ref balanced ICs, MIT Oracle IC and Magnum Speaker Cables; Schiitt Headphone Amp; Sennheiser HD700 Headphones; KLAudio Ultrasonic Record Cleaner

                            Comment


                            • #15
                              Originally posted by JCOConnell View Post

                              It looks like they have kept heat down two ways. 1. Less class A bias (only 15W) 2. Massive massive heat sinks (unit weighs 105 lbs). I don't like either solution. For a 500W amp, I would rather go with separates.
                              I am with you on this.

                              On the other hand, I can also see a need for these with people where space is at a premium.
                              Hugh Nguyen
                              ACA

                              Comment

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