Audiohobby.pl

Sprzęt słuchawkowy - wątek dla początkujących

Rafaell

  • 5033 / 6080
  • Ekspert
07-04-2008, 12:41
>> Arek_50, 2008-04-07 12:01:08
Słuchałeś w ogóle taki wzmacniacz, jeśli tak, to napisz coś o nim
Rafaell

Arek_50

  • 1130 / 6086
  • Ekspert
07-04-2008, 12:54
Arek,tak ale dawno 9 lat temu i nie pamietam jakie to byly sluchawki,
http://www.nene-valley-audio.com/


This isn\'t the first time we\'ve tried one of these inexpensive little British amplifiers. The last time was in issue No. 51. It was the AP50, and if we had heard it in a blind test we would have guessed that it cost deep into four figures. And we would have been wrong. Three figures, even in Canada.
     NVA is the creation of Richard Dunn, who either doesn\'t know how a commercial product is supposed to be made, or he doesn\'t care. Commercial products are supposed to be bulletproof, so that they can survive downright abuse by technical psychopaths. That\'s not the case here. Dunn is frank about the fact that his amp will blow if you accidentally short the speaker cables. Indeed it will blow if you use high capacitance cables, or even if you attempt to biwire your speakers. And if that happens the warranty is toast along with the amp. Overload protection? That consists of you checking periodically to see the amp isn\'t getting too hot, and lowering the volume if it is.
     If all that hasn\'t sent you scooting for one of the other reviews in this issue, read on. Dunn says he could have used the usual means of protecting his output circuit, but at a price. That price would be in reduced musicality. He leaves you the responsibility of treating his product as it must be treated, and he promises you\'ll be rewarded for your care by what you hear.
     Certainly we were delighted with the AP50, which we had received as a kit. (Albert, who had never touched a soldering iron before, assembled it. Unlike some other kits, which are designed with engineers in mind, NVA kits require few tools and as little as four hours of work. And the distributor will fix it inexpensively if you fail.)
     But the AP10 is something else. For one thing it has low power, a mere 14 or 15 watts per channel (we\'ve seen both claims, but our unit didn\'t meet either one). For another, it has only two controls: an on-off switch at the rear and a volume control at the front. Oh, and there\'s a headphone jack. In fact another version, the AP10H, is for headphones only.
     Like the other models, the AP10 is built into a box that is a mix of acrylic and MDF, designed to protect the circuits from vibration. The distributor, Peak Audio, included a length of NVA\'s own speaker cable, but we used our own Wireworld Eclipse. And no, it didn\'t blow the amp.
     Our first impulse was to try the AP10 with our Omega system, with its very high efficiency (91 dB) speakers. They require biwiring, however, and that\'s a no-no, so we settled for the less efficient speakers in our Alpha system. We put the AP10 through the same four discs as the other amps in this series, coddling it somewhat because of its low power. More than we needed to, it turned out...      tu jest wiele prawdy.

Arek_50

  • 1130 / 6086
  • Ekspert
07-04-2008, 12:57
Arek


Notice I said \'boogie\', not \'bang head\'. If you want to antagonise those living above, below or on either side of your crib, talk to some poor schmuck who\'s swallowed all the SET guff about \'3W is all you need\'; maybe they\'ll know of a speaker with 96dB sensitivity for £99 per pair. Even so, in a listening area which could qualify as either a normal person\'s bedroom or the kind of sty most students inhabit - 12 x 16ft - the NVA had no problems driving the Tandys to satisfactory levels.

But the sound? Sweet, smooth and surprisingly transparent, and that applies to both speaker and headphone listening. The sound is robust, with well-rounded, well extended bass, and it wasn\'t embarrassed driving through B&W\'s PB100 sub-woofer. Stage width and depth were truly thoroughbred, and it kept reminding me of the dear, departed Rogers Cadet III, which started me on the valve route when money was right.

The NVA bounces along, sort of a Citroen 2CV of amplifiers, merrily making music but never pretending to be able to do the impossible. What it lacks in absolute retrieval of fine details, exacerbated by slightly dulled transients, the Personal compensates for with an absence of \'active\' nasties. The downside amounts entirely to sins of omission, exactly like the NAD 3020, which never sounded nasty. The NVA, though, never sounds anorexic, either, as did the gutless NAD.

This is not a case of Amplifier Lite. The NVA Personal is a real amp for high-end wannabees lacking deep pockets.

Here\'s my advice: If you just cannot stretch to £300-plus for a complete system and you\'re dying for some sounds, run - don\'t walk - to NVA and beg \'em to sell you a Personal. Then, before the imbecile at Tandy learns the error of his ways, buy a pair of Pro LX5s. Next, go to any hi-fi dealer other than a multiple where the prices are as fixed as at M&S, and ask for a B Stock personal CD player. Don\'t let them lie to you: all hi-fi dealers n the UK circa 1997 are dying for business, even your paltry £50. Seriously broke and prepared to live with headphones for a while? Then don\'t buy the speakers until you can afford them. Go instead for some £49 Grado SR40s.

There you have it: an amplifier for use during a Labour regime.

Rafaell

  • 5033 / 6080
  • Ekspert
07-04-2008, 13:08
Jak kupisz to daj znać co sie od 9 lat zmieniło

majkel

  • 7477 / 6083
  • Ekspert
07-04-2008, 13:13
Odpowiadasz na wpis
>> Rafaell, 2008-04-07 13:08:44
>Jak kupisz to daj znać co sie od 9 lat zmieniło

Przez 9 lat słuch się może zmienić, konstrukcja wzmacniacza też. Swoją drogą, co to za recenzja, gdzie nie ma odniesienia do jakiejkolwiek innej znanej konstrukcji?

Arek_50

  • 1130 / 6086
  • Ekspert
07-04-2008, 13:23
Arek ,nie kupie bo nie przepadam za sluchawkami a ze sluchem no coz jak  myslicie dlaczego muzycy ,spiewacy podaja sobie dzwieki na probie,przed koncertem ?

Rafaell

  • 5033 / 6080
  • Ekspert
07-04-2008, 13:27
>> Arek_50, 2008-04-07 13:23:14
To co, jak myślisz ? skoro nie przepadasz za słuchawkami ,to co Twoja porada dla słuchawkowców jest ile warta ?
Rafaell

majkel

  • 7477 / 6083
  • Ekspert
07-04-2008, 13:33
>> Arek_50, 2008-04-07 13:23:14
>Arek ,nie kupie bo nie przepadam za sluchawkami a ze sluchem no coz jak myslicie dlaczego muzycy ,spiewacy >podaja sobie dzwieki na probie,przed koncertem ?

Ja wiem po co oni to robią na koncercie przed rozpoczęciem utworu - solista dostraja sobie instrument do jednego z instrumentalistów orkiestry.

Poza tym jak wyżej - dlaczego polecasz coś, co Ciebie nie interesuje i nie wiadomo, czy masz rozeznanie w temacie?

Arek, możesz skombinować tego AP10H, Piotr Ryka lub ktoś inny na pewno chętnie posłucha i zrecenzuje na forum. Jeśli firmie NVA zależy na promocji, to na pewno chętnie podeślą na testy.

Arek_50

  • 1130 / 6086
  • Ekspert
07-04-2008, 14:16
Arek,mysle ze testy ich nie interesuja i to od dawna.W sprzedazy polecenia maja wieksza wartosc i to im chyba wystarcza zwlaszcza ze produkty nie sa drogie.
A zasada"money pay back" wyklucza  wszelkie ryzyko i dlatego staram sie zwrocic uwage na NVA.

Rafaell

  • 5033 / 6080
  • Ekspert
07-04-2008, 14:37
Starczy tej reklamy  Arek
Rafaell

clo2

  • 1702 / 6086
  • Ekspert
07-04-2008, 14:49
>Arek_50
>A zasada"money pay back" wyklucza wszelkie ryzyko i dlatego staram sie zwrocic uwage na NVA.

Spotkałem się już na AS z polecaniem przez ciebie urządzeń tej firmy (tam chodziło o integrę) bez dokładniejszych informacji o brzmieniu urządzenia z lakonicznym  - "ten będzie najlepszy". Faktycznie sprawia to wrażenie reklamy.

Co do zasady na którą się powołujesz nie jest tak "różowo". Odesłanie sprzętu nie jest tak proste jak na terenie Polski i koszt przesyłki w obie strony jest chyba dość kosztowny. Myślę że ta zasada o której piszesz jest fajna, o ile jest dystrybutor w kraju i na terenie kraju taką opcję się wykorzystuje.
audiostereo ? dziękuję, nie wchodzę!

clo2

  • 1702 / 6086
  • Ekspert
07-04-2008, 14:54
powinno być wyżej w moim wpisie: ... koszt przesyłki w obie strony jest chyba dość znaczny....
audiostereo ? dziękuję, nie wchodzę!

violett

  • 786 / 6074
  • Ekspert
07-04-2008, 14:57
-> clo2, czy możesz podać gdzie kupiłeś (zamówiłeś) HD600? Na eBay\'u? Podaj, proszę namiary na sprzedawcę.
Pozd. V

violett

  • 786 / 6074
  • Ekspert
07-04-2008, 14:59
-> folab, dzięki za odpowiedź.  :-)  Jeszcze się "pobujam" zanim się zdecyduję na Grado lub HD.  V