GLOBAL OPT verification: Fully tested. The exact cosmetic condition and included accessories are shown and described in this listing.
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Technical Info:
Model: Unison Research EL84 PP ultra-linear
Device type: Tube Amplifier
Power / Voltage: 84V
Amplifier topology: push-pull, ultra-linear
Output tubes: EL84 x4
Driver tubes: ECC81 (12AT7) x2
Output power: 2 x 9.2 W
Inputs: 2 x RCA with selector
Included accessory: amplifier, all tubes
This is a hand-built tube amplifier with point-to-point wiring and a distinctive blue gloss finish. The front carries the āT.A.ā stamp, and the source description identifies it as an author-built piece by Andriy Tesliukevych, dated 2025.
Time That Still Sounds Alive
This kind of amplifier is about more than playback. It brings back the ritual of real listening: warm-up time, visible tubes, physical input selection, and the tactile presence that makes a vintage-style audio system feel personal and alive.
If you are reading this, you probably understand
You are looking at a tube amplifier built around the classic EL84 push-pull formula in ultra-linear operation. Combined with ECC81 driver tubes, this layout is widely appreciated for musical flow, engaging midrange, and an honest analog presentation in a compact power range.
What you get beyond the sound
You get a pure analog amplifier without digital extras, suited to speakers and systems where musicality, visual presence, and hands-on ownership matter most. Two RCA inputs make it easy to integrate into a vinyl or source-based setup.
The blue gloss chassis and central protective transformer housing give it strong visual identity as an audio object in the room, not just another black box. It can be the centrepiece of a small to mid-size listening system built around efficient speakers.
Product Description
The first image is an AI-generated promotional visual and may differ from the actual item.
All subsequent photos are part of the description and show the actual item and its condition.
Demonstration tapes, reels, records, or accessories shown for demonstration purposes are not included unless explicitly stated.
Please check the voltage requirements in your area; Adapter not included.
š Customer Care and Service
You will receive a product and packaging inspection video before shipping.
Repairs, maintenance, and extended Customer Care options are available upon request.
š¦ Shipping
Shipping within 2-3 business days after payment.
A tracking number will be provided.
Items are shipped from the USA, Poland, or Ukraine. Standard shipping takes approximately 10 business days.
Import duties, taxes, and customs fees are the responsibility of the buyer.
š Worldwide Shipping
I have 20 years of experience shipping delicate vintage audio equipment worldwide.
If your country is not listed, please contact me for shipping options.
š Exchange Options
Equipment purchased from us can be exchanged.
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ā Igor ORT
