Milbert Amplifiers

The Most Musical Amplifiers. Made in USA since 1986.

Musical News

  • Performer Magazine, September 2014, pp. 46-47

    GAGA, the Guitar Artists Guitar Amplifier, eliminates all traditional power and audio magnetics and uses advanced power conversion and other patented innovations (specifically not massively paralleled power tubes) to uniquely convey maximum tube tone and to attain what has previously been elusive: The verifiably purest-possible tube performance and a stunning "clarity of tone" that unleashes cleaner cleans, dirtier dirties, and a more natural, most-musical ecstasy. By removing all the audio-frequency magnetics from between tubes and speakers (and elsewhere), GAGA gets musicians closer to their magical, musical truth.

    Bias collapse and overload hangover vanishes; articulation, even if mired in total distortion, retains per-note responsiveness. Power tube and pre-amp tube overload characteristics are changeable and convey completely. This must not be misconstrued as "hi-fi," "overly analytical" or "sterile"; rather, GAGA amplifies a more faithful muse, conjuring truer tone from instrument and playing, ensuring tighter, fuller interactions among tubes, speakers, instruments and musicians - savoring not smothering the finest and most delicate nuances. All manner of sonic signatures and various overload and distortion flavors can be subsequently explored and added to taste.

    Made with top-quality components true to audiophile standards (per its esoteric pedigree) GAGA allows for thoroughly enjoying various tubes, instruments and playing. And, with well over 1.6 million possible "tube cocktail" combinations available by plug-n-play mixing a few dozen types of tubes, GAGA can be like getting a new amp, every day, for the next several thousand years. On many levels, in many ways, there is nothing else even remotely like GAGA.

    PDF synopsis of Tubes vs Transformers white paper

  • GAGA Tri-fold flyer, PDF
  • .

    Tube What Thou Wilt - Milbert GAGA

  • New Tube Tones Available -- GAGA D-15 now also supports EL-84 tubes, taking its possible tube tonal flavors to over 1.9 million, not counting the many preamp tube combinations also available. Ever played an EL-84 pushing against a 6550 pulling?
  • July 2014 -- GAGA D-15 introduced. 15 watts max power output, steps down to ~1/2 watt. Super light-weight. Same as GAGA 90, but lower power. Fully upgradeable - unprecedented in guitar power amplification. Press Release

    Milbert GAGA D-15 Tube Guitar Amp

  • July 2014 - GAGA and the Wet-Dry Rig, by Dave Garfinkle
    "Recently I wanted to join the ranks of those who play their effects signal separately from their main signal, the benefits include a better control of the volume of the two signals as well as a huge sound stage..."
  • Jan 2014 -- Rich Maloof review of GAGA in Vintage Guitar

    "Milbert Amplifiers has produced a genuinely revolutionary guitar amplifier in GAGA. Lightweight, exceptionally adaptable, and featuring an innovative transformerless design, GAGA may be unparalleled in matching versatility with supremely satisfying tube tone. ... GAGA could feasibly mimic most any tube amp. But well beyond the amp's capacity for emulation is an opportunity to discover entirely new timbres, and to nail a sound that otherwise exists only in a player's mind."

  • Jan 2014 -- NAMM Jan 2014 Anaheim, CA - booth 5935B
  • Sep 2013 -- The DC JuiceBox Power Converter quietly transforms 9V to 12V, 18V and more, to provide isolated, linearly regulated, filtered, high-current outputs. Fully P3-Ready™ and works with practically any 9V power source, including GAGA, P3, bricks, warts, etc. Escape the plasticky, noisy, China-made toys -- here is professional pedalboard power conversion for serious musicians.
  • David Garfinkle briefly explains GAGA's unique features (and the unlimited Tube Cocktail™ possibilities) to Andrew Garza of SkinnyMusic at NAMM 2013 in the P3 / Standback booth.
  • NAMM 2013 Show
  • GAGA BOX - stealth, traditional look, small headcase
  • October 2012 -- GAGA D-30 mentioned on, the, and on video by - thanks for helping get the word out!
  • October 2012 -- GAGA D-30 introduced. Based on GAGA 90. 30 Watts maximum power output. Lower weight. Domestic mains (120VAC or 240VAC). Upgradeable to GAGA D-60 or GAGA 90. Unprecedented in guitar power amplification. Future-proofs good investment. Press Release

    Milbert GAGA D-30 Tube Guitar Amp

  • Power-Chain -- The patented, segmented, extensible power cables for guitar effects pedals. Plugs together as you need, leaving exposed no ends to short out the entire rig and also allows easy replacement.

    Power-Chain pedal power cables

  • June 2012 -- Had a blast at the NY Amp Show -- Several pro and session players in our room (with Standback and P3) welcomed anyone to plug in and turn up with guitar, bass, drums and more.

    All amplification was via ever-changing combinations of GAGA and its younger sister, GAGA D-60, thru various speakers and cabinets, including the Jensen Tornado Neo. Lots of fresh clips are up or coming.

    Thank you David Diamond, Eric Warren, Andy Aledort, David Garfinkle, Jason Robling, Scott Lerner Music, Maurice Pringle, Andy Lackow, Bill Holter, Roger Hollard, and the many other excellent musicians who kindly jammed with us.

  • 19 Apr 2012 -- Germantown, MD USA -- Milbert announces availability of GAGA D-60 tube guitar amp. Based on the premier GAGA 90 and offering similar features and functions, the domestic model GAGA D-60 provides 60 Watts power output, slightly lower weight, and domestic mains input (120VAC or 240VAC). GAGA D-60 may be upgraded to the international model GAGA-90. Full info
  • 17 Dec 2011 -- Germantown, MD USA -- Milbert is now shipping the GAGA-90 tube guitar amp. Years in development and having an award-winning pedigree in both demanding mobile and high-end audio, GAGA offers serious advancements in guitar, bass and instrument amplification. Full information at

  • 1 Dec 2011 - GAGA begins shipping.
  • Nov 2011, from email: "...I enjoyed all the subsidiary links... solfeggio, et. al. You guys are scientists and spiritual seekers. Very cool. All the best..."
  • 25 Sep 2011 - GAGA production underway. Shipping soon, backorders first. Watch your email if you joined the list.
  • 25 Sep 2011 -- Milbert announces production of GAGA, a 90 Watt, evenly-balanced 12-pound tube guitar amp in a sturdy, 1/8" aircraft-aluminum "small head" chassis with stainless hardware and removable features. Power is front-panel steppable down to milliwatts. 4 power tube sockets accept 2, 3 or 4 of over 30 types of power tubes, allowing for mix-and-match to achieve any tone desired from classic 4x 6L6 to 4x EL34 and beyond, even way beyond beyond (example: 6550 push and 6V6 + 6K6 pull). Auto-Everything(TM) provides auto-bias, auto-standby, auto-impedance, and Universal Power. Blow-Proof(TM) parallel outputs drive any speaker cabinets via any cables. Bypassable rumble, tone-stack and buffered loop accompany front-panel mute and flip switches. Advanced power supplies ultrasonically maintain energy reserves and greatly extend tube life. P3 Phantom Power for pedals and pickups. Surge suppression, line filtering and active Power Factor Correction allow plug-and-play anywhere on Earth. Limited editions made in USA.
  • PRS on holy grail of guitar amps.
  • GAGA @ Nashville Amp Expo, August 2011

    Milbert GAGA Tube Guitar Amplifier

  • GAGA @ Amp Show, June 2011, near NYC. 2011-06
  • It's rare for technologies used in guitar, bass or instrument amplifiers to earn mention in top audio journals. David Berning's ZH-230, a 30-watt amplifier that shares technologies with GAGA, has won Editors Choice Award 2011 and has been called "the anointed new king" in The Absolute Sound Magazine. Previously, Berning's Quadrature Z (also sharing technologies with GAGA) was named Product of the Year by HiFi+ Magazine. GAGA brings to the musical realm something truly fresh and sonically special, and it's not just us saying so. 2011-05
  • Analog War Cry calls the P3 Phantom Power for Pedals system "a pedal junky's best friend". Among its many firsts, GAGA-50 is also the world's first guitar amp to offer P3 Technology as a standard feature.

  • Power-Chain - segmented, extensible power cables for all guitar pedals.
  • Visit us at the NAMM show in Anaheim, California, January, 2010, Booth #5935 in Hall B. We'll be in the booth with Standback and P3 Technology.
  • David Berning's $30,000 Quadrature Z power amplifier, which is based on the patented ZOTL technology that the Milbert GAGA-50 is also based on, won Hi-Fi+ Magazine's "Power Amplifier of the Year" award for 2009.
  • Nashville Summer 2009 NAMM Show: The GAGA-50 engineering prototype breezed four days of full power jamming, oblivious to frequent tube changes, dead shorts and purposely opened outputs. Nobody could kill it, accidentally or on purpose.
  • Milbert and Berning have teamed up again to produce a new kind of guitar amplifier, the GAGA-50.
  • Introduced at the winter 2009 NAMM show in Las Vegas, P3 is a unique phantom power system for guitar effects pedals, being produced by The DC Voltage Company. Please see for more information.
  • is an official mirror of Frank Philipse's extensive tube datasheet and information archive
  • Tubes Vs. Transistors - Is There An Audible Difference? HTML updated with tables & graphics | PDF scanned original
  • Transistors Vs. Tubes - Feature Comparison HTML adapted from IEEE & Eric Barbour

Mobile News

  • Apr 2024 - Mike Michne rebuilding Earl Zausmer’s Red BMW (@PrecisionMike). Mike Michne is rebuilding Eark Zausmer’s world famous Red BMW 5 series. Milbert Tube Amplifiers, Zapco solid state amplifiers, Sony Radio, processor, CD Changers, B&W home audio speakers. Infamous and classic car audio.
  • Mar 2024 - CarMiZa - MasterTech Expo Visitors with Earl Zausmer (@PrecisionMike). The MasterTech Expo is this week in Mesa AZ, and many car audio people are in town. A few guys came over to the house to check out the progress on CarMiZa and hear some legendary old school car audio stories from the man himself, Earl Zausmer. Enjoy!

    ~ 8:40 in Earl relates the importance of head-position, LASER-pointer, phasing, precision placement, near-field listening, soundstage. Interesting history of Dynamat, Optima Batteries, Mapleshade Recordings and more.
  • May 2023 -- CarMiZa - Earl Zausmer Listening Tests
  • "...and the Milberts, I'm so surprised, they sound exactly the way they used to, exactly the same." - Earl Zausmer, 00:15 in

    "...our cars, we can't listen to them for more than an hour, but this car [Earl] it sounds just as good now [10 hours later] as the moment we got in it." - Earl Zausmer, 3:10 in

  • May 2022 -- "CarMiza Introduction" by Mike Michne. An amazing amount of information about the car's and systems' history; also, an outline of the rebuild and plan forward.
  • April 2022 -- "One red car" -- Earl Zausmer interview by SQology
  • Aug 2020 -- "EZ" reincarnating as "MiZa". Follow along here with Mike Michne and Earl Zausmer as they rebuild this car audio legend from bottom to top, 25 years on. Ongoing, open-source, interactive project.

  • Jul 2019 -- Two BaM-235ab amplifiers in Mike Young's White Beetle. Best install MECCA; at IASCA / MECCA, West Virginia 2019-0727. Installation by Edric Taira, Audio Architechs.

  • Sep 2016 -- Still in-production in its basic form; still 100% American-made, the BaM mobile tube amp is 30 years old.

  • Sep 2015 -- Tech and Autofiles Interview (episode 35) with Earl Zausmer. Discussing audiophilia, car audio, his white BMW, his red BMW, headphones, iphone, tube amplification and more.
  • 2013 -- Sound Quality Round Table #1 with Earl Zausmer and others. " of the best-sounding cars of all time." - Larry Frederick, Phoenix Gold -- " performance that really involves you in the music..." -- "A must-watch video for the beginners ... in the SQ world."
  • Nov 2012 -- Introducing the Liquid mobile tube amplifier, new for 2013 -- 30 Watts, 2 channels, all-tube, based on BaM-230, smaller, lighter, lower price.

  • Jun 1-3, 2012 -- T.H.E. Show, Newport Beach, CA. - A stealth installation in a Bentley featured the Milbert BaM-235ab.

  • 25th anniversary of the BaM tube car amp, in continuous production since 1986.
  • Observers have noted that we are "the last American company making all [of our] car audio products in America", and that "everyone else has...gone overseas for production." If true that's amazing and spooky, and if false let us know. Just to be clear, 100% of all our products are 100% designed and 100% Made In USA. Milbert Amplifiers products offer unsurpassed sound quality and reliability. 2011-02
  • "The Holy Grail of Autosound"

  • Added Christian Korbel's Audi A3 article and pictures. 2011-01
  • is an official mirror of Frank Philipse's extensive tube datasheet and information archive
  • The 11 hottest tube amps you can buy
  • What car and audio system would you have if you were the owner of the biggest car audio chain in Japan?
  • Tone Audio Magazine ( writes that Milbert makes "the best sounding car amplifier on the face of the earth...[30] pure tube watts per channel."
  • BaM-235ab press releases appearing in 12volt News, Celebrity Car magazine, Enjoy The Music, 21 HiFi, and others as well as various sites and forums online.
  • Introducing the new BaM-235ab. Same great sound and design, now with autobias.
  • The Robb Report Collection, "Great Machines Special Issue," June, 2005 editorial review:
      "If musical accuracy is what you are seeking, the Milbert is most certainly the Holy Grail of auto sound."
  • Celebrity Car magazine Ad
  • Purchased Earl's Car
  • AutoStylin magazine Technical story

  • "The BaM-235ab coupled with audiophile gear and high efficiency speakers can be very revealing. It is not kind of, sort of, maybe sometimes, or slightly better, but the improvement is large and immediately apparent. Veils vanish and things not previously heard leap out from the music: The ambience, the many nuances and intricacies, the breaths, sighs and shimmers all become audibly apparent. And you feel the emotion.

    "Drumbeats that were perhaps homogenous thuds in SPL-competition systems are transformed, in that the type of drum sticks, the sticking or playing style, and even the drum head material itself becomes discernible. New layers are revealed. Duet voices become independently distinguishable and harmonious, instead of blurred. A woman's voice in a recording you've heard many times can suddenly make the hairs on the back of your neck stand on end. That's the kind of resolution, detail and emotional impact which you can routinely expect from the BaM-235. In any system, the BaM-235 helps you feel music, and that is priceless.

  • AutoStylin magazine Ads & Review PDF
  • Tubes Vs. Transistors - Is There An Audible Difference? HTML updated with tables & graphics | PDF scanned original
  • Transistors Vs. Tubes - Feature Comparison HTML adapted from IEEE & Eric Barbour

General News

Milbert Amplifiers, The Most Musical Amplifiers. Made in USA since 1986.
Milbert Amplifiers
The Most Musical Amplifiers
Made in USA since 1986

8051 Citation Drive #C
Gaithersburg, MD 20877 USA
phone 202-558-5502