rage3324
100+ Head-Fier
- Joined
- Jan 19, 2008
- Posts
- 432
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- 45
I use Hi-Z, but the reason I asked is because of the 1:8 ratio rule. The WA7 definitely has enough power to drive 300 ohm headphones using the lo-z setting. Anyways, judging from this review:
http://kenrockwell.com/audio/woo/wa7.htm#z
The output impedance does not change much between hi-z and low-z. It is mainly the gain that changes. Based on that and the specs of the HD800, the lo-z should work just fine. Although, the HD800 does have an impedance spike around 100hz.
As for 32 ohm Grado cans, theoretically the WA7 should not be a good match (like most tube amps), but they all seem to fair just fine.
I am curious what Woo thinks.
http://kenrockwell.com/audio/woo/wa7.htm#z
The output impedance does not change much between hi-z and low-z. It is mainly the gain that changes. Based on that and the specs of the HD800, the lo-z should work just fine. Although, the HD800 does have an impedance spike around 100hz.
As for 32 ohm Grado cans, theoretically the WA7 should not be a good match (like most tube amps), but they all seem to fair just fine.
I am curious what Woo thinks.