Views 28,771 Hagerman Tuba is a very pragmatic Tube Based Amplifier, priced at 650 USD. It is designed to drive Grado and Sennheiser but also Audeze and Beyerdynamic, and it has a 5 or 35 OHM Output impedance making it work less well with IEMs than with headphones. There’s a good …
Sweetness Of The Analogue Sound – Hagerman Tuba Amplifier Review
![](https://www.audiophile-heaven.com/wp-content/uploads/2020/06/Hagerman-Tuba-Tube-Void-Amplifier-Headphone-OTL-Audiophile-Heaven-Review-45.webp)