AC Line Harmonizers

[MrMobodies]

AC Line Harmonizers to harmonize your audio and video of any system.

Nordost Qv2 AC LINE HARMONIZER

https://nordost.com/qrt/qv2-ac-line-harmonizer.php

The QVIBE, Qv2 is an AC Line Harmonizer that is designed to enhance the musical performance and picture quality of any audio or video system, delivering readily demonstrable benefits at an incredibly affordable price. It can be used as a “stand alone” product or to complement a full QRT system including QBASE-Mark II, Qx4, Qx2 and Qk1 units. The Qv2 works directly on the AC line, introducing a carefully calculated range of pulsed frequencies, clocked from the original 50 or 60Hz waveform. The result is a drop in noise floor, with a commensurate increase in image depth, dimensionality and presence, significantly increasing the realism of both musical and visual performance.

Like other QRT products, the benefits are cumulative and Qv2s are even more impressive when used en masse. The compact, “plug-top” construction of the Qv2’s mechanically tuned housing allows it to be inserted into any free socket on your system’s AC line – although adding directly to a QBASE-Mark II maximizes the benefits.

Qv2 units are available in either US (NEMA) or EU (Schuko) configurations, and compatible with 50/60Hz 100 – 240V supplies. However, standard adaptors can be used to employ the Qv2 in other markets. The Qv2 is housed in a mechanically tuned carbon fiber and has high quality gold plated connection pins. It is built entirely in the USA and carries a two-year warranty.

• Works directly on the AC line, actively introducing a precise range of pulsed frequencies
• Increases the depth and realism of the musical performance.
• Lower perceived background noise.
• Deeper, more dimensional and more vibrant picture on AV systems.
• Mechanically tuned carbon-fiber body
• Gold-plated NEMA or Schuko connector

https://nordost.com/products/power-distribution-systems/qv2/qv2-ac-line-harmonizer-spec.php

Specifications
Dimesions (WxHxD):
Qv2 (US) Qv2 (Eu)

Price
https://www.musicdirect.com/power/quantum-qv2-ac-line-harmonizer-ea
$349

Power distribution sockets to go with it:

https://nordost.com/products/power-distribution-systems/qrt-power-distribution.php

Cleaner, clearer and much more natural sound that puts you far closer to the original performers, far closer to their performance – because QRT puts your system closer to the original signal.

We live in a world where radiated pollution, instability and interference undermine AC line quality, seriously affecting the performance of electronic systems. QRT provides a unique and uncompromised approach to the treatment of AC mains power in critical signal applications. Our proprietary, modular solution delivers proven, measurable results without the negative effects that limit the performance of more conventional approaches.

The quality of the electricity reaching your system is critical to its performance, with EMF noise and waveform distortion all undermining the performance of those expensive hi-fi components you’ve invested in. While conventional filters can limit the destructive impact of these problems, they impose their own associated performance costs, raising the source impedance and reducing the peak current capabilities of the AC line. These limitations cause their own readily audible or visible side effects, limiting musical dynamics and robbing images of depth and color.

There’s an old saying – that prevention is better than cure: unfortunately, if the scale of the problem is simply too vast to deal with properly, then “curing” it can cause more damage than it prevents. QRT’s modular approach treats the symptoms of poor AC line quality, rather than trying to correct what is a global situation – and it does it without limiting the voltage swing or altering the all-important source impedance of the AC supply. Which makes the job of your hi-fi’s power supplies much, much easier – and that’s what you hear from your system or see on your screen.

Use QRT products and you’ll experience a lower noise floor, greater clarity and separation and increased dynamic range, qualities that are just as apparent (and measurable) when it comes to the color, definition and detail on your AV display.

https://nordost.com/products/power-distribution-systems/qbase/qbase-power-distribution-spec.php

Specifications

Dimesions (WxHxD): QB4 (US, EU and AUS) – 234 x 67 x 120mm
                               QB6 (UK 13A only) – 460 x 67 x 120mm
                               QB8 (US, EU and AUS) – 460 x 67 x 120mm

Input:                     C-14 IEC
Output:                   US, Schuko, Australian or 13A UK
Fuse:                      Yes

4 socket Price
https://executivestereo.com/products/nordost-qrt-qb4-qbase-mark-ii-power-conditioner
$1,139.99

8 socket Price
https://executivestereo.com/products/nordost-qrt-qb8-qbase-mark-ii-power-conditioner

Is it just a filtered PDU but for Audiophools?

[Cyberdragon]

Is there anything more in it than rocks and Chinese capacitors?

[Domagoj T]

The QVIBE, Qv2 is an AC Line Harmonizer that is designed to enhance the musical performance and picture quality of any audio or video system, delivering readily demonstrable benefits

I wonder if my non-audiophool ears would be entirely deaf to these benefits.

[MrMobodies]

When I click specifications it gives me just the dimensions.

They must think I am stupid and would only want that.

They are making out that all of the mains electricity supply is terrible and can damage things.

Well I got some old power supplies in some machines that still work but a few voltage rails are dipping.

Some were built in 2003 and they still work but they did cost a lot of money back then and I find them very reliable.

A few have got braiding on it but I don't hear much noise on it with audio or interference with the video.

Edit: Sorry missed out words.

[Electro Detective]

AC Line Harmonics Neutralizing Filters have always worked for me   

I think they used to be called... AC line isolation transformers. 

They do double duty as handy bookends and door stops when not deployed for hi-fi or bench use


Perhaps the AC LINE HARMONIZER designers will incorporate those added benefits in the next upgrade?   

[cdev]

Electronics literacy is important.

People don't know better when they read this stuff because they don't know the most basic things about electricity and how it works.

[richnormand]

"• Lower perceived background noise."

Does not say that it actually lowers the background noise, just the "perceived" background noise.
So measured reality or placebo effect?

Next statement seems more definite:
"• Deeper, more dimensional and more vibrant picture on AV systems."

OK how about some real measurements to prove that statement then? How do you measure deeper, dimensional and vibrancy (or is it black level, resolution and contrast.... mostly properties of your display)

[Halcyon]

OK how about some real measurements to prove that statement then?

Like with all audiophool products, real measurements don't exist (because they can't exist)

[MrMobodies]

"• Lower perceived background noise."

Does not say that it actually lowers the background noise, just the "perceived" background noise.
So measured reality or placebo effect?

That's a good point, perceived by whom?
Themselves or their phools.

OK how about some real measurements to prove that statement then?

Like with all audiophool products, real measurements don't exist (because they can't exist)

Instead they seek reassurance.