5 out of 5
Unison Research Unico 90 Integrated Amplifier
Free UK Delivery
Discontinued
Unison Research Unico 90 Integrated Amplifier
Unico 90 is a class AB hybrid integrated amplifier with zero feedback, as the most precious valve amplifiers use only two stages. The heart of the Unico 90 circuit is found in its hybrid structure. All of the gain, and subsequently the "character" of the amp, is determined by the only tube stage made with ECC83 and ECC 81in particular multiple-parallel-totem-pole. Unison Research-specific circuit to deliver a weighty, rich 160 watts per channel.
Who is Unison Research?
Unison Research, founded in 1987 by a group of audiophile technicians, is a prestigious Italian manufacturer of valve-based premium high fidelity audio components. Specialising in the design and construction of amplifiers, CD players, headphone amps and phono stages that boast not only impeccable, effortlessly rich sound but also an artistic visual design.
| Output power | 100+100 W RMS su 8Ω / 160+160 W RMS su 4Ω |
| Frequency response | -1dB @ 12Hz e 45kHz -3 dB |
| Input impedance | 21Kohm // 300pF |
| Input sensitivity | 860mV RMS |
| Input stage | Pure A class, double triode totem pole ECC83 and parallel totem pole ECC81 This single stage due to the particular circuitry is able to amplify the input signal and drive directly the power stage. |
| Output stage | Class AB thermostable, complementary Hexfet (3 pairs for channel) |
| Number of stages | 2, This amplifier due to the particular circuitry is realized by only two stages: input stage and output stage, and use only local feedback |
| Input | 6 line (3 unbalanced, 2 balanced, 1 “bypass” unbalanced) |
| Line Outputs | 1 tape, 1 sub (volume controlled) |
| Output connectors | 4 + 4 bi-wiring |
| Global Feedback factor | 0dB |
| THD | < 0.15% @ 1kHz, 1 W < 0.5% @ 1kHz, 10 W |
| Output resistance | <0.4 ohm, resistive on all audio frequencies |
| Power Consumption | 550 W (at max power on 8 ohm) |
| Dimensions | 43.5cm x 44 cm x 18 cm h |
| Net weight | 20kg |
UK Delivery
Providing your item is in stock, the order is usually dispatched within 24 hours. Postage and packing is completely free for orders over £99*. Out of stock items will be dispatched as soon as they become available, which can take between 4 to 21 days
UK Delivery orders are sent via our couriers' DPD Local on a next-day-delivery service and usually take between 1 and 3 days.
Local Delivery
Certain manufacturers disallow mail order for their products, however a local delivery may be possible.
We offer a local delivery service for a large number of our products. After your order has been placed, a member of the Hifi Gear team will contact you to arrange a convenient date and time for your local, personal delivery.
Click & Collect
We offer a free ‘Click & Collect’ service on all items. As soon as your order has been completed and is ready for collection a member of our team will be in contact with you. Orders can be collected from our store at 11 King Street, Hereford, HR4 9BW.
Please use this link to find more detailed delivery information or contact us for more details
