March 24, 2023 / Dallas, TX
Miller Audio LLC ( https://milleraudiollc.com/ ) is re-introducing the Dyna-70 Ultimate Upgrade for the Dynaco ST-70 to the DIY audio community. Several years ago Erhard Audio introduced the Dyna-70 Ultimate Upgrade. In our testing and listening trials, we concluded that the Dyna-70 was the best of the ST-70 driver upgrades that are in production and available today. We built and integrated a number of Erhard Audio Dyna-70 Ultimate Upgrades for our ST-70 customers. The Dyna-70 sounds so good the kit sells itself once you hear one.
The Dyna-70 Ultimate Upgrade is different than most ST-70 driver updates offered today because it isn't just an audio driver upgrade, its also a power supply upgrade. In fact, the truth is a Dyna-70 is a more expensive upgrade than just replacing a driver CCA, and it provides the ST-70 something it has always needed- more power and filtering. The Rectifier tube and multi-section cap can have been replaced with on-board, solid-state rectification and a minimum of 2-3X of additional filtering capacitance. It also features an on-board in-rush current limiter (ICL) with a 2-stage warm-up cycle for the signal/preamp tubes to come up before the output tubes, minimizing warm up noise. The Dyna-70 Ultimate Upgrade now comes in two configurations at different price points: Automatic Bias or Manual Bias.
The Dyna-70 Ultimate Upgrade is now available and in production. Visit https://milleraudiollc.com/ for details and contact information. We offer a full selection of NOS 6SN7's, as well as a comprehensive selection of new production EL34 / 6CA7 tubes, and film coupling capacitor upgrades from Mundorf and Solen. We also offer the Dyna-70 bare PCB for DIY'ers in both auto-bias or manual bias configurations, allowing DIY'ers the ability to pick their own parts or experiment with various components.
Miller Audio LLC will be demonstrating the Dyna-70 Ultimate Upgrade at the Lone Star Audio Fest, June 2-4, 2023 in Dallas, TX at the Embassy Suites Hotel, Dallas Galleria,
14021 Noel Road, Dallas, Texas, 75240
For more info on the Lone Star Audio Fest (LSAF) visit: http://lonestaraudiofest.com/
We welcome everyone to stop by and listen to some of the best sounding ST-70's you'll ever hear.
Miller Audio LLC ( https://milleraudiollc.com/ ) is re-introducing the Dyna-70 Ultimate Upgrade for the Dynaco ST-70 to the DIY audio community. Several years ago Erhard Audio introduced the Dyna-70 Ultimate Upgrade. In our testing and listening trials, we concluded that the Dyna-70 was the best of the ST-70 driver upgrades that are in production and available today. We built and integrated a number of Erhard Audio Dyna-70 Ultimate Upgrades for our ST-70 customers. The Dyna-70 sounds so good the kit sells itself once you hear one.
Dyna-70 Ultimate Upgrade w/ Auto Bias (green LED's) | Dyna-70 Auto Bias CCA w/ optional Mundorf Coupling Caps |
The Dyna-70 Ultimate Upgrade is different than most ST-70 driver updates offered today because it isn't just an audio driver upgrade, its also a power supply upgrade. In fact, the truth is a Dyna-70 is a more expensive upgrade than just replacing a driver CCA, and it provides the ST-70 something it has always needed- more power and filtering. The Rectifier tube and multi-section cap can have been replaced with on-board, solid-state rectification and a minimum of 2-3X of additional filtering capacitance. It also features an on-board in-rush current limiter (ICL) with a 2-stage warm-up cycle for the signal/preamp tubes to come up before the output tubes, minimizing warm up noise. The Dyna-70 Ultimate Upgrade now comes in two configurations at different price points: Automatic Bias or Manual Bias.
| Bottom View Dyna-70 with Auto Bias Module |
The Dyna-70 Ultimate Upgrade is now available and in production. Visit https://milleraudiollc.com/ for details and contact information. We offer a full selection of NOS 6SN7's, as well as a comprehensive selection of new production EL34 / 6CA7 tubes, and film coupling capacitor upgrades from Mundorf and Solen. We also offer the Dyna-70 bare PCB for DIY'ers in both auto-bias or manual bias configurations, allowing DIY'ers the ability to pick their own parts or experiment with various components.
Miller Audio LLC will be demonstrating the Dyna-70 Ultimate Upgrade at the Lone Star Audio Fest, June 2-4, 2023 in Dallas, TX at the Embassy Suites Hotel, Dallas Galleria,
14021 Noel Road, Dallas, Texas, 75240
For more info on the Lone Star Audio Fest (LSAF) visit: http://lonestaraudiofest.com/
We welcome everyone to stop by and listen to some of the best sounding ST-70's you'll ever hear.
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