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  • Big Tube Amp Eye Candy

    I just recently learned of the existence of the 833C monster tube. Check it out!

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  • #2
    Here is a push-pull 833C monoblock in action.

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    • #3
      A little smaller, single ended 833C power amp.

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      • #4
        Wow are they nice
        analog stuff.
        otari mtr 10 2 track 1/4 made new by soren
        otari mtr 10 2 track 1/4 1/2 combo made new by soren
        sota sapphire used eminent tech ver 2 arm
        new sota nova table has magnetic levitation platter and full speed control and latest motor same arm as above
        thorens td124 sme ver 2 arm
        thorens td125 sme ver 2 arm
        kenwood direct drive sme ver 2 arm
        phono preamp Ml no 25 all re capped
        speakers cust infinity IRS V , new caps and LPS , magnets etc.
        mark levivson pre no 26 amps no 33
        digital three cust servers , win ser 2016 , AO
        Dacs lampi various

        Comment


        • #5
          Peter Cheon's tube amps (Klaudio).
          Click image for larger version

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          Speakers/Amps: Genesis G2.2 Jr with Powered Servo-Sub Bass, Genesis GR1440 Mono Amps, 5,000 watts total power
          Preamp: SMc Audio VRE-1C Preamp (fully balanced inputs and output)
          Phono 1: VPI Prime Signature Belt-Drive Turntable with 10” 3D Printed Uni-pivot Arm and Ortofon MC Windfeld Ti Phono Cartridge driving Lehmann Decade Phono Preamp
          Phono 2: VPI HW-40 Direct-Drive Turntable with 12” 3D Printed Fat Boy Gimbal Arm and Ortofon MC Anna Diamond Phono Cartridge driving Genesis Gold Phono Preamp
          R2R Tape: Studer A810 with Bridge Console
          Digital: Battery Powered Laptop running software on SSD, Music Files on USB SSD, and playback by JRMC. USB interface to M2Tech Young DAC
          Cables: Genesis Advanced Technologies/Absolute Fidelity Interface Interconnects, Speaker, Phono and Power
          Power: Audio-Ultra Power System, IsoTek Super Titan Passive Power Conditioning for Amplifiers
          Accessories: Custom Acrylic Equipment Stands, Klaudio Ultrasonic RCM

          Comment


          • #6
            Click image for larger version

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            Speakers/Amps: Genesis G2.2 Jr with Powered Servo-Sub Bass, Genesis GR1440 Mono Amps, 5,000 watts total power
            Preamp: SMc Audio VRE-1C Preamp (fully balanced inputs and output)
            Phono 1: VPI Prime Signature Belt-Drive Turntable with 10” 3D Printed Uni-pivot Arm and Ortofon MC Windfeld Ti Phono Cartridge driving Lehmann Decade Phono Preamp
            Phono 2: VPI HW-40 Direct-Drive Turntable with 12” 3D Printed Fat Boy Gimbal Arm and Ortofon MC Anna Diamond Phono Cartridge driving Genesis Gold Phono Preamp
            R2R Tape: Studer A810 with Bridge Console
            Digital: Battery Powered Laptop running software on SSD, Music Files on USB SSD, and playback by JRMC. USB interface to M2Tech Young DAC
            Cables: Genesis Advanced Technologies/Absolute Fidelity Interface Interconnects, Speaker, Phono and Power
            Power: Audio-Ultra Power System, IsoTek Super Titan Passive Power Conditioning for Amplifiers
            Accessories: Custom Acrylic Equipment Stands, Klaudio Ultrasonic RCM

            Comment


            • #7
              Nice! That 212E tube is a real beast.

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              • #8
                The 6AS7G tubes aren't much bigger than a 6550, but they make up in quantity (42/channel) what that lack in largeness. (pardon to the nominalists)



                That's a pair of Atma-Sphere MA-3s. I'd love to try these in my room .... in winter.

                Comment


                • JCOConnell
                  JCOConnell commented
                  Editing a comment
                  those amps must be pretty heavy

                • Guest's Avatar
                  Guest commented
                  Editing a comment
                  Only 80 lbs per chassis - why so light? No output transformers!

                • JCOConnell
                  JCOConnell commented
                  Editing a comment
                  If you try them now (summer) better crank up the A/C first!

              • #9
                There are these Wavac amplifiers from Japan that use 833 tubes. One of, if not the most powerful SE amplifiers I know of. 150 wpc. Had them on the cover of my magazine back in the '90s. Can be magical on the right speaker.

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                Myles B. Astor, PhD, Administrator
                Senior Editor, Positive-Feedback.com
                ________________________________________

                -Magico S5 Mk.2 speakers with SPod feet
                -Goldmund Telos 280 stereo amp
                -Goldmund Mimesis 37S Nextgen 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 Lambda, Fuuga, vdh Colibri Master Signature, MutechHayabusa, 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, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble 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


                • RonR
                  RonR commented
                  Editing a comment
                  Hi Myles!

                  Do you remember what speakers you heard driven by the Wavac 833?

              • #10
                There was Shoreline amplifiers in the 2000s. Think they used radio transmitting tubes and we're rated at about 800 wpc. Price was north of 100k.

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                Myles B. Astor, PhD, Administrator
                Senior Editor, Positive-Feedback.com
                ________________________________________

                -Magico S5 Mk.2 speakers with SPod feet
                -Goldmund Telos 280 stereo amp
                -Goldmund Mimesis 37S Nextgen 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 Lambda, Fuuga, vdh Colibri Master Signature, MutechHayabusa, 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, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble 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


                • #11
                  Then there are the Tube Research GT800s. One channel of course. Someone on another forum ordered them and waited five years for delivery. I think he died before ever getting them.

                  Click image for larger version

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                  Myles B. Astor, PhD, Administrator
                  Senior Editor, Positive-Feedback.com
                  ________________________________________

                  -Magico S5 Mk.2 speakers with SPod feet
                  -Goldmund Telos 280 stereo amp
                  -Goldmund Mimesis 37S Nextgen 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 Lambda, Fuuga, vdh Colibri Master Signature, MutechHayabusa, 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, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble 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
                    Asside from heat they look wonderful. I have a friend who has a set of CARY amps the use 300 b to drive some larger output tubes. Mono blocks that look really nice and sounded very good on his setup. I love the way tube amps look always did.
                    analog stuff.
                    otari mtr 10 2 track 1/4 made new by soren
                    otari mtr 10 2 track 1/4 1/2 combo made new by soren
                    sota sapphire used eminent tech ver 2 arm
                    new sota nova table has magnetic levitation platter and full speed control and latest motor same arm as above
                    thorens td124 sme ver 2 arm
                    thorens td125 sme ver 2 arm
                    kenwood direct drive sme ver 2 arm
                    phono preamp Ml no 25 all re capped
                    speakers cust infinity IRS V , new caps and LPS , magnets etc.
                    mark levivson pre no 26 amps no 33
                    digital three cust servers , win ser 2016 , AO
                    Dacs lampi various

                    Comment


                    • #13
                      Then there's Audio Research's monstrous Ref. 750SE with KT150 tubes. 750 wpc. One concern with these forrests of output tubes. What happens to those tubes in the middle? Do they because of all that heat age at the same rate?

                      Haven't heard the new SE but years ago when Bill Peugh was with Sumiko, they had the original 750s driving the SF Fenices. The 750s weren't quite optimized that day at CES but the sound was glorious. Some of the best sound I've ever heard at CES. Oh yes the front end was an SME table/arm and the Palos Santos cartridge. (A cartridge that often gets overlooked because of the price.) One half of course.

                      Click image for larger version  Name:	IMG_3827.JPG Views:	1 Size:	52.5 KB ID:	58270
                      Myles B. Astor, PhD, Administrator
                      Senior Editor, Positive-Feedback.com
                      ________________________________________

                      -Magico S5 Mk.2 speakers with SPod feet
                      -Goldmund Telos 280 stereo amp
                      -Goldmund Mimesis 37S Nextgen 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 Lambda, Fuuga, vdh Colibri Master Signature, MutechHayabusa, 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, Skogrand, Viero, Kubala-Sosna, Audience Au24SX, Genesis Advanced Technologies and Ensemble 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


                      • #14
                        Originally posted by MylesBAstor View Post
                        Oh yes the front end was an SME table/arm and the Palio's Santos cartridge. (A cartridge that often gets overlooked because of the price.)
                        Because the price is too low or too high?

                        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, Audio Technica AT-OC9XML Cart (Stereo) , Graham Engineering 2.2 Tonearm (Stereo) , VPI Aries-1 Turntable (Stereo) , VPI Clamp, Denon DL-102 Cart, (Mono) , Luxman Tonearm (Mono) , Kenwood KD-500 Turntable (Mpmp) , 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


                      • #15
                        Originally posted by MylesBAstor View Post
                        There are these Wavac amplifiers from Japan that use 833 tubes. One of, if not the most powerful SE amplifiers I know of. 150 wpc. Had them on the cover of my magazine back in the '90s. Can be magical on the right speaker.

                        Click image for larger version  Name:	IMG_3819.JPG Views:	1 Size:	73.5 KB ID:	58208Click image for larger version  Name:	IMG_3820.JPG Views:	1 Size:	108.0 KB ID:	58209
                        I heard the WAVAC 833s at Brian Ackerman's house when he lived in So Cal back in the late '90s. i believe he was the US importer at the time. they were driving Cabasse Baltics with the tri-axial drivers in the 'eye ball' enclosures. The experience was sublime and one of those audio memories you don't soon forget. Def worth seeking out if you have the 'right' speaker.
                        Simon Yorke + Zyx + B.M.C .> Soulution > Boulder > Magico

                        "Listening to Analogue music is an act of rebellion in a digital gulag" - Simon Yorke

                        Comment


                        • MylesBAstor
                          MylesBAstor commented
                          Editing a comment
                          Jim Ricketts at tmh-audio carried WAVAC when Ultimate Audio did the review. Jack English reviewed them with the ProAc IVs IIRC.

                          First time I heard the WAVAC amps was many years ago at CES at the now gone Sahara Hotel. The amps were paired with some JBL speakers I never heard of (turns out that JBL made stuff that was never exported and these speakers were one of these products!) and the sound was magical. I remember Joe Harley sitting next to me and we were both very impressed. Incredible mids and a wrap around dimensionality. After all they are SE TRIODES amps. Just luscious sounding in an era of hyperdetailing and hardness.
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