I can only add my voice to what has been said before, it's a great little speaker.
Even I, as someone below, run with a NAD D3020, and it seems to be a very successful combination.
Small appliances but a very big sound.
Had these for almost half a year. Sounds really good driven by a HK 3490th surprisingly big sound from the small speakers and can go loud without sounding bad or give ugly resonances Nice finish, real heavy and feels very solid and sturdy, reeks of quality. The tweeter is the best thing about them, though the midrange is really good. Pretty good punch in BSEN although the low bass feel in your chest is there why a sub is recommended if you listen very hard rock like me, but is not a basfreak can probably be satisfied without.
Previously held Dyna Vice magic F-6 EX and Dynavoice Challenger M-65 and switched me down to size in two steps because they were too big. I liked both these speakers, the big difference is the resolution in the upper frequencies where the Concept 20 is superior. With a comp tenet base, the result is really good, a joy to listen to.
Highly recommended if you want a good and affordable audio without having large furniture to speakers in the living room. A little pity that the optional stands looks like hell.
For 3990 kr I think that it is nearly impossible to find a pair better bookshelf speaker in this size. Have had my pair for about 2 months and it is always a joy to listen to them, what music you throw at. Have tried a few different combinations of amplifiers and speakers in conjunction with a couple of trial listening occasions and have not been disappointed in my Concept 20. At one point (in the home), so we put them head-to-head with a pair of Kef R100 (7990 SEK) and a pair of Kef Q300 (4990), this was the Concept 20 those who emerged victorious from the battle, they lost it in base against the combatants, they won in the balance and joy. Kef R100 sounds super in the right environment, but is not quite easy to install, they require quite a lot of space from the wall so as not to be hit over the base and degrade the overall impression.
Have since tested (in the home) my Concept 20 against a pair of B & W CM1 and a pair of B & W DM685, this time together with an NAD D3020 and a Naim Nait 5i. Both B & W speakers have a larger soundstage (more bass), but does not feel nearly as accurate in the reproduction of music. I understand that many fall for this type of speaker, but in the long run prefer anyway my ear how the music is presented by Concept 20.
That I think is the speaker's strongest card is the open great soundstage and how easy to place these are, I have mine in a shelving system by about 20 cm to the back wall and never ever think that basreflexen cause problems.
For the money, Concept 20:01 bargains, I'm not the only one to think this. In addition to the reviews above, so there is a wealth, indeed a plethora, super positive reviews for this speaker where reviewers marvel at these little blighters and in many cases, comparing them to much more expensive options.
Right out of the box, you would think that there is no deep bass, but as they are recorded so they grow slowly but surely into the role of a complete speaker.
The construction is solid and substantial, in my opinion, stylish and finish, you can not complain at all.
Looks nothing negative with these, in the price / size / sound. I myself have a NAD D3020 and this is a super nice combination, whether you're listening to Spotify / Wimp or, for example vinyl records.
Edit: Have now supplemented with a sub when a certain music became very clear that the deeper frequencies are not there. No real surprise, are still very happy with the speakers, but 10th in some dank, 9th feels more fair.
Now I've had my Concept 20 in a month!
I am a satisfied grunt and venture to say that they are easily the most affordable speakers you can find in relation to sound. With the right type of amplifier and at least 30-40 hours of recording, I could say that they can compete with speakers of the same size, for 7-10 000 / class.
Can admit that at first I was a bit disappointed! They were anything but bad, but it was as if something was missing. But suddenly one day, it was as if they opened up, as if someone remove a veil. At first I thought it was a placebo effect :) but then also said my partner and two pals same thing without me asking them. After some research, I understand that others who bought these had a similar experience. We need about 30-40 hours of recording.
Lets start with the negatives;
- Need recorded at least 40 hours. Which feels a bit slow but is nothing unique about a new pair of speakers.
- Perhaps they are "somewhat" thin in the deep bass. But after recording it will be a significant difference, which means that they are fully approved. With a good sub, they are probably the best 2.1 system you can get for the money.
+ Extremely cheap in relation to cost
+ Plays extremely "crisp" / clean
+ Extremely good control
+ In my opinion, the music becomes very high resolution
+ Very crisp and controlling bass, but at the same time, it has an authorized depth. Especially after they are recorded.
+ With the right amp, the sound is very airy, and they separate intrusmenten really good.
+ Even though the exhaust sitting in the back, they are very easy to place. This may be due Gel Core construction, which means they are built into a cabinet that sits further into a cabinet which makes the resonance is minimal. Lets just say that unlike my old B & W cm1's like night and day.
+ Easy run
+ In my opinion, very good looking and slightly smaller than most in its class.
Trivia: In order to get the full potential they need matched with good amplifier. Self I run a Naim nait 5i and it sounds like I said more than very good.