4971759172452352Unison Research Unico 90 Integrated Amplifier - 100w ECC81 Unico 90 is a class AB hybrid integrated amplifier with zero feedback, as the most precious valve amplifiers uses only two stages. The heart of th Product #: luenhingelectricalhk-Unison Research Unico 90 Integrated Amplifierhttps://www.luenhinghifi.store/i/RqcnjYgAA2024-05-28 Regular price: $HKD$34800.0 Available from: Luen Hing Electrical(HK)LimitedIn stock