The ZOTL40 Reference+'s power @ 8ω is 46W against the ZOTL Ultralinear+'s 20W, its output impedance 1.6Ω against 1.2Ω, its input impedance 50000Ω against 47Ω, and its weight 6.8 kg (15 lbs) against 7.94 kg (18 lbs).
The ZH230's power @ 8ω is 30W against the ZOTL Ultralinear+'s 20W, its output impedance 1Ω against 1.2Ω, its input impedance 50Ω against 47Ω, and its weight 7 kg (15 lbs) against 7.94 kg (18 lbs).
The E-550's power @ 8ω is 30W against the ZOTL Ultralinear+'s 20W, its output impedance 50Ω against 1.2Ω, its input impedance 20000Ω against 47Ω, and its weight 23.9 kg (53 lbs) against 7.94 kg (18 lbs).
ZOTL Ultralinear+
- Power @ 8Ω
- 20W vs 20W
- Output impedance
- 2Ω vs 1.2Ω
Unison Research S6
- Power @ 8Ω
- 35W vs 20W
- Output impedance
- 6Ω vs 1.2Ω