Insight 2024 – Hybrid FET/tube preamp

Insight is the best preamplifier designed by Audiozen. But we were able to improve it, equipping it with a hybrid circuitry that includes low-noise FETs and NOS tubes, along with many stunning details that make the Insight the perfect line preamplifier for Audiozen

Insight is the preamplifier that has remained in the Audiozen catalog the longest: since 2018 it has received just minor updates in the power supply section, but the design has never been revised or replaced.
There is a reason why: since its introduction Insight has been enthusiastically welcomed by audio enthusiasts and trade press alike, especially for its sonic skills and amazing value for money. The feedback received consistently over the years has made the Insight a real masterpiece for Audiozen.

There was therefore almost fear in removing from Audiozen’ catalog a preamplifier with such a curriculum acquired over time, but in the meantime excitement for something new was advancing inexorably.
Determined then to say something different, but fearful of doing wrong to a highly successful creation, we decided to leave the name (new layout is again an Insight of the designer) and to change the rest, at least internally.

No longer a totally tube circuit, but a different design: FETs in the preamp section and tubes on the output. A hybrid circuit that encompasses the best of both worlds: in each channel a pair of selected FETs preamplifies the audio signal and transfers it to the NOS tube that lowers its impedance.

Insight is a preamplifier consisting of two cabinets: the main unit and the power supply stage. This choice, certainly more expensive, allows excellent performance, both in sonic terms and in reliability.

The main unit houses two circuits: although only the NOS tubes circuit board (shielded and equipped with metallized through-holes) is visible from the transparent perspex Insight cover, underneath that board is placed the FETs stage equipped with 4 low-noise FETs (2 x channel) for the audio signal preamplification.
Tubes provide for lowering the impedance of the audio signal: this is an important step to allow the best interconnection with the power amp to which the Insight will be connected. Tube section includes two constant current generators for ideal operating stability.
For the best audio signal decoupling, Audiozen chose the CSA series by ClarityCap, objectively excellent polypropylene capacitors. The CSA Series incorporates unique CopperConnect technology that reduces signal path resistance and capacitor ESR to achieve new levels of audio performance.

The separate power supply unit is equipped with a pair of toroidal transformers, rectification is performed by a pair of metal-bodied bridge rectifiers, normally used for power amps. Innovative high efficiency, low drop-out integrated circuits are used together with large sized capacitors to stabilize voltage for FETs and tubes.

Four pairs high impedance inputs, one pair line output, one pair monitor out and a 30 Amperes power supply connector with golden pins are located on the Insight rear panel.

Volume control is managed by an excellent motorized ALPS potentiometer; Insight is supplied with a remote control for volume management.

8 mm thick solid wood sides, transparent perspex cover, solid machined aluminum knobs, 10 mm thick aluminum front panel, first class RCA connectors: all of that complete an Audiozen creation conceived without compromise.

Exceeding in listening the milestones achieved over the years was not easy, at least according to our idea of sound, but the Insight 2024 version proved that something was still perfectible: greater dynamics, solidity, transparency.
Listening experience is enriched with an extreme feeling of naturalness, musical event is sharpened with space between the instruments and the sound stage is perfectly focused, with a warm and transparent timbre.

Insight delivers a level of resolution, refinement and control that improves dramatically in every sense listening enjoyment.

A moment’s insight is sometimes worth a life’s experience – Oliver Wendell Holmes, Sr.

Audiozen Insight 2024 - Hybrid FET/tube preamp equipped with separate power supply unit
Il risultato della combinazione dell'Insight con il resto del mio set up mi rende felicissimo. E poter avere un po’ d’italianità nell'impianto lo fa ancora più speciale!
Walter
Switzerland
L'accoppiata Insight e P-Stone ti riconcilia col mondo dell'high-end. Macchine costruite con cura certosina, non tolgono o aggiungono nulla alle registrazioni. Il basso eletrico è asciutto, potente, controllato, non sbava assolutamente. Le voci sono piene di tutte le sfumature incise sul disco. I fiati, ti accarezzano quando devono (chet Baker ti si materializza davanti, con eleganza), ma sanno anche graffiarti. La dinamica ti sorprende, i pienissimo e i fortissimo vengono riprodotti senza che sia necessario muovere la manopola del volume, che già ad un quarto della sua corsa ti riempie l'ambiente d'ascolto. Grazie Audiozen
Paolo
Italy
Everything that I have from Audiozen is sounding spectacular. The combination of the Insight and P-Stone has made my speakers sound amazing. I cannot say enough good things about what you have built! Audiozen is truly a gem in my music system.
Doug
USA

Audiozen Insight 2024

hybrid FET/tube preamp
3600
  • NOS tubes: 2 x ECC82
  • Semiconductors: 4 x low noise FETs
  • Input impedance: 100 KΩ
  • Output impedance: < 400 Ω
  • Line inputs: 4 x RCA
  • Main output: 1 x RCA - Monitor out: 1 x RCA
  • Gain: 14 dB
  • Remote control: included
  • Available finishes: silver & black
  • Main unit dimensions and weight: 348x138x245mm (WxHxD) – 4,2 Kg.
  • PSU dimensions and weight: 340x98x245mm (WxHxD) – 6 Kg.
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