Eico

Eico 666

Vacuum tubes

€319 vs last month median 2026

Estimated used-market median, refreshed monthly

View listings on HiFiShark ↗

More from Eico

All vacuum tubes →

Eico 377 Vacuum tubes Eico 625 Vacuum tubes Eico 628 Vacuum tubes Eico 635 Vacuum tubes Eico 667 Vacuum tubes Eico HF-89 Vacuum tubes Eico ST70 Vacuum tubes €663 median Eico 1064 Power supplies Eico 1064S Power supplies Eico 2510 Power supplies Eico HF-87 Remote controls €738 median Eico 2536 Integrated amplifiers €385 median