Ищу 12" драйвер для НЧ звена.

Пожалсто, только всё на английском.

А кто знает, какая реальная у такого типа динамиков мощность, так как все пишет по разному (имею в виду
номинальную долговременную)

http://www.d-s-t.com/peerless/data/831857.htm

Long term Max System Power (IEC) (W) 220

http://www.partsexpress.com/pe/pshowdetl.cfm?&PartNumber=297-618&DID=7

Power handling: 220 watts RMS/310 watts max

Price: $69.80 EA (1-3)

К чему я клоняю - условно не дорогой и достать легче.

http://members.ozemail.com.au/~googong/spn.html

Are there suitable monopolar candidates to go with line source dipolar ribbons? On this mailing list the NHT1259 appears to be the favoured candidate but I suggest that there are other candidates, like the Peerless 831857 in a 160 litre box with a port tuned to 18Hz, particularly at infrasonic frequencies. In the included theoretical computed gif files the yellow plot is the NHT1259 and the green plot is the Peerless 831857 in such a box. The first gif file is a comparison of their normalized amplitude response and down to about 11Hz they are essentially the same but thereafter they go off at their expected falloff rates. The second gif file is a comparison of their maximum acoustic power and this really shows up their true potential with the Peerless 831857 clearly much better than the NHT1259 below 40Hz. At 20Hz the Peerless 831857 is about 18dB better than the NHT1259, a fact that makes the Peerless 831857 look a much better candidate than the NHT1259. The hump in the maximum acoustic power of the Peerless 831857 at 18Hz, the frequency the port is tuned to, I'm not too concerned about as it is at a frequency below audibility and in this infrasonic frequency range will be "pleasingly" detected. I've always had a bias against vented boxes because of what they do below the Fs of the driver (24Hz in the case of the Peerless 831857). The third gif file is a comparison of their group delay and down to 30Hz shows that the group delay of two drivers is inaudible and allays any doubts that I have about using a vented box. The only disadvantage of using the Peerless 831857 that I know of is that the box that it is to go into is twice the size of the one suitable for the NHT1259 but when it comes to low bass big boxes are to be expected. I believe that the Peerless 831857 driver is also cheaper than the NHT1259 (or it used to be). In this process I also gain back all the back wall that was hidden behind the Carver woofer towers. And the surrounds on the Peerless 831857s are rubber, not potentially rotting foam on the Carver woofers in a sun filled solar house.
On paper then the Peerless 831857 in a 160 litre box with a port tuned to 18Hz looks a much better candidate than the NHT1259, particularly at infrasonic frequencies, to go with dipolar ribbons. I now have in my listening room a pair of Peerless 831857 drivers in very well braced 160 litre boxes with a port tuned to 18Hz flanking the retrofitted Tony Moore' ribbons that I described recently on this mailing list. The crossover frequency between the two units is 280Hz. Other crossover frequencies have been tried and this crossover frequency was chosen as a good compromise between the resulting sound and the possibility of loading the ribbons too much.

I now have clean bass which can again shake the house that I really can't complain about excepting that the tonal balance changes between sitting in my usual listening position and standing up from there. To solve this problem I suspect that another set of Peerless 831857s is needed sitting on top of the current pair to make the bass units be more line source like, like the ribbons. I hope to find time in the future to do this at the possible cost of another amplifier because I would like to do things differently in the crossover for this extra set of drivers to bring them in at a shallower rate to get them really only working at low bass frequencies. The whole house could really shake then! The tonal balance never changed when changing head height with the Carver ribbons/woofer towers. Unfortunately I can't put the bass boxes in the corners of the room to exploit the room gain that this room positioning gives. I have yet to put the Peerless 831857 drivers into any danger area in my attempts so far to exploit their low bass potential. I can't really fault the combination of the ribbons with the Peerless 831857 boxes excepting in the area of changing tonal balance when changing vertical head height and the limitations of stereo. I haven't had the opportunity to do a comparison with NHT1259s in this system to verify in reality what the theoretical calculations are saying, but I don't have any real doubts about them.

PS
Я тут прикинул в бассбоксе 831857 и NHT.
В 100 литрах у первой завал начинается от 50-ти, у второй - от 40гц. Но у первой уровень SPL выше децибелла на 3 примерно . Поэтому ниже 40 спад у них идёт по одной линии. Вобщем на 831857 есть где развернуться с корректирующими фильтрами, если есть желание получить АЧХ как у NHT1259 imho.

на 36
Сергей Фролов

Вы имееете ввиду наклоненую переднюю панель?
Что это даёт? Если можно, то где про это прочесть?

Со всеми регардами, Дмитрий ///  

на 36
Я уже прикинул ... и пускай убьют родственники ...   :о))
Вобщем 100 литров должен смочь! :о))

Сергей Фролов
А ты на чём остановился?

Вопчем как-бы нет пока в Москве 831857 ...