NORDOST Qvibe Qv2

MJ20.11.2014

Power conditioners

Qvibe aka Qv2 is a unit that is close to Quantum’s philosophy of “harmonizing” an audio system, whatever it means. It should improve the sense of space, colour, presence and life to an audio system. In result, the sound should be more natural, more lifelike.

 

Funkce a forma

100%
Ergonomie
50%
Zvuk
100%
Zpracování

To avoid any negligence I was burning in the pairs of Qk1s and Qv2s for four days in the respective power sockets, that is minimum of 100 hours before I tried to audition them. After that the beautifully finished Furutech-style carbon housings of the devices got quite hot on touch. The connecting parts of Schuko standard plugs are gold plated, the working status is indicated by tiny bright micro diodes – red for Qk1, blue for Qv2.

The device is supposed to be plugged in the same current path with your equipment. The effect should multiply with the number of additional QRT devices plugged in. Nordost recommends to start with a pair of each and this is how I approached the test.

 

Nízké frekvence

Váha
100
Výbušnost
100
Artikulace
100

I had several possibilities where to insert the QRT devices: into unused nests of the Nordost Thor unit that hosts my SACD player and preamplifier or into two free sockets next to the AC line outlet that feed the power amp. The next option was to use a standalone AC output on the other wall of the room that was part of the very same (dedicated) audio circuit.

Čistota rozlišení

Detail
100
Vzduch
100
Transparentnost
100

Tonální věrnost

Témbr
100
Dynamika
100
Časování
100

It was not until 2 Qv2s were hanged in parallel to the main AC line when I heard more profound difference. Surprisingly the highs did not get cleaner or more extended – it was the bottom end that benefited the most. The bass guitar around 4’ mark got more legible with Qv2s in place, more discernible from surrounding ambience. Yet, the most convincing result arrived with the Qv2s plugged in the power distributor. I was consistently getting more dynamic leading edges of attacks and longer decays.

Prostorovost

Trojrozměrnost
100
Šířka scény
100
Hloubka scény
100

On vocals, listening to Katie Melua’s Crawling Up a Hill (Call off the Search, Dramatico), I heard a little bit less of the digital edge and a little bit more of analog liquidity. Mozart’s Allegro Maestoso performed on solely percussive instruments by the All Star Percussion Ensemble (Super HDCD 24bit, FIMCD 017) did not lack anything from its big dynamic contrasts, quite opposite, it further bloomed showing more vivid colours and more relaxed sound. Precious (Depeche Mode, Playing The Angel, Mute SACD) benefited by the guitar line around 2’45” mark to be more palpable and Dave Gahan’s voice a tad bit three-dimensional.

Note: The DRS rating, 100%, means that the unit was absolutely transparent for all components that were reviewed with it. Thus the final effect cannot be quantified.

 

 

 

Cena v době recenze:8 500,- Kč

Doporučení prodejci

Gaia Connections, Praha, tel. +420 286 885 599

Připojené komponenty

  • Sources: Accuphase DP-700
  • Amplifiers: Accuphase A-70, Accuphase C-2410, Van Medevoort PAQ/CAQ/PSQ
  • Interconnects and speaker cables: Krautwire Fractal, Cardas Clear, Audioquest Redwood, TARA Labs RSC Air 1EX, Tara Labs ISM The 2EX
  • Loudspeakers:  Bowers & Wilkins 802 Diamond
  • Power conditioning: Nordost Valhalla, Block Audio Snakeblock, Nordost Thor (modified)

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