AMP-F2: Reviews & Feedback

Opinions about 2 x F 2 are on this forum and others. Need to search a bit and read.

 

I have 2 of these amps, for me they works really well. I use them to drive 4 atmos speakers.

I did a lot of listening before I bought them, this was I setup as monos in bridge mode, I really liked the sound, clean and nice details, nice imagin and soundstage, for the price I think they are really good.

I would recommend them without blinking.

Best regards Kim

 

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I had XTZ A2 400 and NC252 Audiophonics for trial , XTZ sounds simply better to me, soundstage is better and amp better drives my Magnepans (with 2X420W@4 ohm and dedicated 1000W power supply). It is dead silent, no humming, no mechanical buzzing etc...
Also gain control is excellent feature + auto-sense, it got clipping indicator, case is elegant and properly sized industrial design, match nice with my DMP A6. THD is low enough, <0,01 %. I'd like to remind all ASR evangelists that THD below 0.1% is officially inaudible for humans. Now XTZ A2 400 price is 635,00 Eur with 5 years warranty, so I'l keep it.

 

Hi all,
I’m new here so please be patient with my simple question….
Im thinking about getting a pair of F2 amps for a mono setup (bi-amp) with my Cambridge Audio EVO150.
Now, my EVO150 has the option to run as a pre amp an I’m lookin for better sound through two mono amps which could deliver more power than the claimed 150 watts my EVO should be capable to deliver.
My question is - would a pair of F2 amps be an upgrade, something similar to what I already have or a downgrade of the quality my EVO150 already is delivering (sound wise)?
Thanks for your feedback

 

There will be certainly no sound degradation. In mono mode with two F2 amplifiers, 45 w is obtained on one channel - 2x 190 w at 8 Ohm. I think the sound will be better. It would be best to test this configuration with your EVO150
before purchasing. If there is any option for that.

 

so? Good game?

 

The only red flag here is for your wrong comment that BurnIn is a scam. Search a bit on google to find the explanation why electronic parts change slightly in the beginning of use.

 

Is this anyway near 200, or 300, or 400 hours? mIf you are talking about 15 minutes, or about warming up (some components do indeed benefit of getting warmer), I may, to some extent, agree.

 

Hello folks,

I also treated myself to the F2.
Firstly because my Restek MINT (which is now for sale in Germany together with the CD MPLA+) does not provide enough power for my new speakers.
And because after 10 years I just wanted something different.
My children are 9 & 10 years old. I like to dance and my wife also dances and likes to listen loudly and that was also my goal to get the three of them off the echo dot.
Together with the D6 Master, this is a very good combination and also looks very good on the shelf in the small room.

At the beginning I had a bit of difficulty because my ears were used to a completely different sound. In the linear setting, the bass sounded a bit flat and the ribbon tweeter sounded very sharp.
Thanks to the equalizer I was able to throttle it down very well.
I switched from RCA Cinch (which I had on the Restek for years) to XLR (in-acoustic).
And that's when the first real wow effect came.
Nicely loud, clean and nice details from the middle and high frequencies. Powerfully full soundstage and depth. The men's voices are deep and clear and the women are nice and high
And depending on the recording, they are really nice and central betweenthe speakers.
I already miss the warmth of the music. Maybe you can do this with another XLR cable.
But the dynamics are great.
You can feel the dry deep bass and the desire to sing along with the singers.
It's fun and my family likes it too. I would say goal achieved.

What really strikes me is that when I connect another RCA cable I get immediate feedback.
I had a really old wide one these days
6N OCC Ribbon 99,999 copper cable connected out of curiosity that I found in a box in the basement, the sound was very neutral without EQ and with my setting there was more bass, more in the middle and less in the treble range.
Wow, that's really great, the sound, everything was clearer, but pleasant so that it wasn't annoying. On the other hand, the depth was no longer quite as great as I would have liked. It doesn't really bother me because I listen to music while standing anyway, or I sit around the corner at the dining table. But the spaciousness thanks to the ribbon tweeter has remained. Perfect I think.
A friend came to visit and brought me an Eff-i XLR cable from Supra.
I tried it out after an hour and bahh! what was that? Terrible.
I turned off the EQ and the whole thing sounded pretty good.
So if your setup sounds dark and boring and feels like it needs a little more clarity and introspection, the Supra EFF I might be the right cable, but not on mine.
So again the oldie RCA cable is connected to the EQ on and off. Clear purchase recommendation from me.

Exactly, the Eversolo cannot work with the F2 without EQ.


♩✧♪●♩○♬☆♩✧♪●♩○♬☆♩✧♪●♩○♬☆

I still have one question.
If I have the D6 with RCA on the F2, can I also connect an XLR cable to the two devices at the same time to test cables better?!? (I always have to flip the toggle switches, right?!)

Many greetings from Hamburg

 

Please explain to me technical and physical how cables can "sound". I would like to understand it. Thank you.

 

A cable is a connection between an output and an input. A cable is not only a resistor, but also has capacitive and induktive elements. The material of the cable decides the resistance , the cover of the copper or silver makes a capacitor between PVC or Teflon and Copperor silver. The transport of signal is a electric and magnetic wave at the surface of the wire. These waves are influenced by immission from outside ( aka WiFi, Magnetic field of transformer or alike) . So there are many reasons why the transport on a cable can be influenced by wire, isolation, solid core or strands, even plugs . AND digital signals on a wire are actually analog changes of voltage between ground and lets say 5V . The issue is the moment of change between 0 and 1 . Immissions, noise and more can interfere where the point of switching between 0 and 1 is . You can call that Jitter , if this point differs over time . So it is only logical that even USB - and ethernet cables can be of influence on the sound. Presumed that your hifi- system is capable of revealing fine details.
And the good news is , you need no measuring instruments , just use your ears , again and again, and you will start hearing the different "sounds" of cables.

 

Count me in... I am very anxious too...

 

You know we are talking about a few centimeters to a coupole of meters cable, right?
All (well... almost...) you say is true, but for cables of a certain gauge (or as we say in Europe, square section) it becomes measurable (and somehow could become audible to some youngster ears too...) with cable lengths of about a couple of kilometers... now, this is totally possible; although I doubt it may be the case in a home audio setup...

P.S.
Anyway, if you want to at least be taken seriously, avoid (strictly avoid) making statements regarding USB and network cables being capable of influencing the sound... nope: this is not how data-packets work. Please. Don't.

 

Good morning sleepyhead ! You have missed a couple of things happening lately. First of all we dont talk about data transfer , we talk about streaming music. My recommendation is to watch Hans Beekhyzens video about the influence of digital cables and ethernet switches on sound . . Maybe you get it then . And if not just use a printer USB cable and then an audiophile one for connecting your computer to the DAC and then listen. OOpsi , there is a different sound . How comes if your packet theory would be right in terms of streaming?

 

What`s about the "internet cables" outside my home? I don`t know if they have buried audiophile cables down under our street. My music comes from Quoboz or Tidal and I don`t know where they store them and the exact way it comes to my home audio entertainment system.
May be there ist a lot of sound lost in the earth before the data reach my "high end audiophile network with wonder cables?

 

It is so tiring to discuss with naysayers , that I am stopping here. Do what you like , try it or not. And go walking in the sun. That may help your personal issues.

 

I'm completely serious. What good would "high-end cabling" do me in my house if the data comes from "outside" and has traveled endless miles on "normal cable routes"? Will the data suddenly be better in my house than outside? Will I hear something different or better in my house than if I were tapping into the line outside? Seriously. I don't understand it...

And what`s about wireless? Will you then need some magic air to get audiophile sound?

It`s raining...

I have no issues.
I'm sane.

May be you need more sunshine than me.

 

Hello my friend!
Decency and class are not your thing - I remember!

 

And a music stream is not DATA PACKETS from the internet, right?
OK.
You know what we say in my country...?
"It's useless to try educating a donkey: first, you waste your time, and second, you annoy the animal."