Guestbook

Reply to Mr. Becker's entry of 29.5.2000. (STRONGLY SHARPENED VERSION) Dear H. Becker, you wrote that you were interested in the nuBox 360. Since you found out that its crossover is very complex, you no longer know whether it is worth listening to! You can only find that out IF YOU ACTUALLY LISTEN TO THEM. On pages 26 and 27 of our Technik Satt booklet you will find (in my opinion) quite impressive answers to the complexity of crossovers. The question of what constitutes good sound is not always easy to judge by ear. Nevertheless, the results are easily reproducible if the jury is experienced, well rested and critical. Your statement that every component distorts the sound is very strange. You could just as well say: every wheel increases the rolling resistance. - Who would think of changing from a bicycle to a ONE-WHEEL in order to reduce the rolling resistance?--When updating the nuBox 360/4 to 360/5, we proceeded as follows: experienced sound engineers evaluate speakers in elaborate listening tests (including various crossovers), and only then do we decide which model to build. - Sometimes, improvements that are clearly measurable do not result in a gain in sound quality. - In this case, the update is not carried out - in the case of the 360, we have driven 13 variants to (possible) absolute perfection - although no speaker with a 6 dB crossover has ever won, we are continuing to develop this type of crossover (in conjunction with all-pass filters). Order of the test:--PLACE 1: DSP active speaker with delay in the treble channel and 17 additional equalization filters --PLACE 2: NUBOX 360 Current production version with an additional 8 components. --PLACE 3: (only very close behind) NUBOX 360 current series stand--PLACE 11: 360 m. Filter slope 6 dB and reverse polarity tweeter without tweeter delay. ---- The time alignment only plays a subordinate role - Why do the 6 dB crossovers have a clearly audible effect on the sound? Stronger tweeter resonance and more distortion! The theoretical advantage of 6 dB crossovers (zero group delay, therefore perfect square wave signal with in-phase sum of the electrical signal) is dramatically worsened by inserting the speaker chassis into the chain. - Because loudspeakers with 6 dB crossovers have to be operated with the polarity of the tweeter reversed, the original cleanliness of the electrical signal is also reversed. --You can read about the step response of the nuBox 360 in the Stereo 9/99 review. It may not be perfect in terms of time response, but it is still better than most of the other speakers in the same test, which cost up to 8 times as much. The fact that time alignment has any influence on the sound is highly controversial. Most benchmark experts claim: indistinguishable. In my own listening tests, the correction of group delay (with DSP systems) was just about distinguishable. With kind regards GN.

And once again I have to take my hat off to the Nubert team! Since my DVD player arrived (Yamaha DVD-S795 - also ordered from Nubert, where else? :o)) my 5 NuBoxes (4xnuBox 360 and CS2) have been very happy! If you turn off the subwoofer, you can't believe the incredible dynamics of the 360s. Even movies like Volcano, which actually work a lot with LFE, come across quite effectively! I can only marvel that such 'small' speakers can come close to reproducing the sound of 'full-blown' floorstanding speakers...and if you read Stereoplay, you'll be surprised why the nubox 360 was even able to place itself ahead of a pair of DM 2300 speakers from a renowned loudspeaker manufacturer, but once you've listened to it, it quickly becomes clear why! What's more, at 600 DM/pair, the nubox 360 is anything but expensive. In terms of performance, you could call it a miracle! In any case, the AW-900 will soon follow for a listening test and may even find a permanent place in my home! Nubert fulfills four wishes at once - the wish for competent service - the wish for quality - the wish for a low price - and the wish not to be ripped off! All this speaks for Nubert! And that's another reason why I personally have made the Nobert Speaker Factory my hi-fi supplier! Because Nubert doesn't offer anything that doesn't work! Here, performance is given top priority in order to satisfy (almost) every visitor/new customer/customer! THAT deserves the highest recognition! Respect and hats off to the team!

To the Nubert team, I have been a good Nubert customer for many years. I own the 460, 360, CS3 and AW 900 and have been impressed by the sound and level. But what I miss are the frequency responses that should be on every speaker in the Nubert brochure. It would be really great if you could see the curves in the future.

Hello Nubert team, more than three years ago I was looking for new speakers. I (naturally) came across the 360s in the STEREOPLAY test review. After the info package arrived, I decided that it would be better to invest an extra 200 DM in volume instead of stands. Two weeks later my 390s arrived. The neutrality and the creamy bass made me grin constantly while listening to music. Since May 15, 2000, however, the grin is gone. That's when my new AW-850 arrived. I actually had reservations about buying it, as the bass of the 390 is already quite deep. Now I just listen to my music with my mouth open. How could I live without a (very good) subwoofer? Whether Mahler or Massive Attack, everything is better. However, it took me a good three days to find a sensible set-up and adjustment. I let the 390s run at full power, as they are not weak satellites. The result: when I move around the room, the quality of the bass changes much less than without the 850s. Even the booming in the corners of the room has disappeared. Incidentally, the most commonly recommended set-up with the SW between the main speakers led to disastrous results. Total boominess around 43Hz followed by a -20dB hole from 50Hz to 80Hz. Unbearable but understandable: the room modes parallel to the stereo base are hardly excited, while those perpendicular to the stereo base are strongly excited by the fact that my speakers are only 0.5m in front of the wall. That's why the 850s are now positioned in such a way that they excite the room where the 390s don't and vice versa. When I'm sitting in the normal listening triangle with the main speakers, it's against the wall to my left, with the back about 40 cm away from it. Volume at -3dB, frequency control in the middle and phase approx. 30 degrees. Oh yes, I wouldn't have been happy with a simple 0/180 degree switch. Best regards, Matthias Ciupka

I wanted to listen to the Nuboxes in Gmünd. But now I've become suspicious, because I do understand a lot about loudspeakers... 1. but when I read as an argument FOR the Nubox 360 that it has 34 components in the crossover, I ask myself whether it's worth it... The best speakers I know have a single component (capacitor in front of the tweeter, which is only coupled in at 5 to 8 kHz, e.g. Epos, Triangle, the bass-midrange driver is designed to fade out by itself without any dips in the frequency response) or no crossover at all in true full-range systems (Roiene, Rhedeko, Lowther)! Generally speaking, less is more at the high end. Every component distorts the sound, absorbs energy and takes away the liveliness of the music. Anyone who - like me - builds their own loudspeakers can understand this... 2. the claim that you can hardly tell the difference between an electrolytic capacitor and an MKP capacitor is also an old wives' tale, as any inexperienced listener can immediately understand. Mr. Nubert: Where are your listening skills? Or are you just measuring? 3. and: Where is the diagram for the step response of the speakers? This is far more informative than the sum frequency response when it comes to assessing liveliness and homogeneity. Because tonality takes place in time! What is the point of tonal fidelity if the bass lags behind the treble, as is the case with almost all loudspeakers on the market - not all, mind you! I'm looking forward to your response and would like a little more information on the aspects mentioned... Yours sincerely, Ulli Becker

After much toing and froing, I have now bought the AW-850 subwoofer. And all I can say is simply GENIUS!!! Great service and regards to the whole team.

hello Nubert team, i have received the 360 speakers i ordered and am pleasantly surprised by the speed of delivery, the spotless finish and the excellent instructions. after setting them up (correctly positioned and connected), installing a new pickup in my pl player, i dug out my old test records (cd's are not always the first choice!) and off we went. since i used to have the opportunity to compare loudspeakers for work, i'm confident in my judgement. i've rarely heard such precise, airy and clear loudspeakers, especially not in this price range(!). a real monitor. for the ambitious music lover, the 360 is one of the favorites. the room-bound music connoisseur is grateful for the small dimensions of the speaker (they are a bit deep, but where else could the speaker have this amazing bass foundation). respect mr. nubert, you and your team have created a real insider tip in this field! be sure, if it weren't for that, i would have noted it in your guestbook. one more remark about your fair return policy: i keep the speakers and you keep the money. best regards, dieter kubalik

Hello, there are many comments about the nuBox series, especially the 360 box. Where are customers with experience of other series, e.g. Nuline or Nuform? Greetings K.L.

Hello Nubert team, hello HIFI friends. On May 17th I traveled 250 km from Mannheim to finally listen to my NuBox 660 live. With so much money in my pocket to buy a medium-sized Canton speaker (for a long time there was no other speaker manufacturer for me), I drove from traffic jam to traffic jam, from construction site to construction site, past trucks and Dutchmen! At this point I would like to cut a long story short. I reached Nubert Speaker Factory in Gmünd without any problems. Standing in front of the entrance door and with four selected CDs in my light hand luggage, my heart was beating almost up to my neck. I entered the hallowed halls, entered the first O.G. and paused for a few minutes at the sight to think of all those who are standing in a MediaMarkt somewhere at the same moment and have some junk box sold to them for their bitter savings, which the seller also has at home. When I was standing in front of the nice employee, slightly slurring my words and waving my CDs vigorously in the direction of the speaker studio, the employee sat me down on a leather couch in the middle of all the goodies. She brought me a cup of coffee, which I thanked her for far too quietly, but the look on her face told me: "It's OK. - That happens to us here every day. In short, the service was fantastic. The extremely friendly and very positively reserved gentleman explained the technology to me and let me test my speakers on my own, without any time pressure. Well, what can I say, both of them - not the salesmen - are now in my living room. Actually, what I'm trying to say is that it's worth going the extra mile, you're compensated for a lot. Your Volker Mehler

hello Nubert team, i ordered two 360 speakers today and can hardly wait to test them extensively. with so many positive and exuberant emails, i'm really looking forward to the Nubert experience. if the expectations are really fulfilled, a corresponding entry in the guestbook is a matter of course. greetings from munich dieter kubalik