SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ SET Asylum ]

---

[ Alert Moderator ]

---

What I do...

Posted by Triode_Kingdom (A) on January 7, 2016 at 18:51:43

In Reply to: Pondering DHTs for headphone use posted by KG4NEL on January 5, 2016 at 06:06:24:

I run 32 ohm phones from a SE 6V6 amp, roughly 4.5W/ch, using the 8 ohm output. To match the amplifier, I have a 9.1 ohm resistor in parallel with the output and a 150 ohm resistor in series with the phones (Grado). This creates a load of 8.7 ohms for the amplifier, and volume is sufficient to deafen me. Maximum available voltage at the phones is slightly more than 1V RMS, or 35 mW. Based on the manufacturer's sensitivity rating for my phones, that calculates to 115 dB SPL. It seems much higher in practice, but those are the numbers. If I were to wire 250 ohm phones directly across the output of the amplifier, the equivalent load with the parallel 9.1 ohm resistor would be 8.8 ohms. Maximum available voltage at the phones would be 6V RMS, or 144 mW. I'm pretty sure that will be well beyond the threshold of pain with any headphones you're likely to use.

This post is made possible by the generous support of people like you and our sponsors:

Parts Connexion

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---