Đôi loa nay tôi đã dùng từ lâu rồi, hôm nay mới xin tham gia vào hội YAMAHA YAMAHA NS-890 NATURAL SOUND SPEAKER 89,000 In 1978, the bookshelf type speaker system where Yamaha sells. Relative the enclosure of depth You supplied four units, even in Yamaha history with unusual 4 way speaker systems, NS-1000M And the NS-690 series was 1 units which had the charm which in addition is different. The beryllium dome unit which was developed with NS-1000M at that time high pass playback ability in vivid of vivid extent Although so high appraisal is obtained hardness of sound and there was a surface where difficulty etc of the being connected of the limits were pointed out low. Actually, with NS-1000M, sweet low the fact that balance of high pass in the limits and spicy is taken is secret of managing With, it was difficulty. NS-890 beryllium dome type mid- loads the mid- bus of high and cone type as a medium limits unit, densely With being connected with with, low from high pass extending through the limits as smoother, the speaker system which it is easier to sound Being something which it tries to do, they were 4 way constitution for that. To as for eater, with JA-0520 of dome type of 3.0cm aperture, NS-1000M in the same way beryllium diaphragm harvesting/adopting Business it had done. Applying the electron beam vacuum vapor deposition method which can use beryllium for semiconductor manufacturing technology, the dome Being something which formed in type, scientific coating of thickness of 5 microns by doing, activity beryllium the sky It was protective from the air substance. In the beryllium diaphragm, the aluminum ribbon line edge where heatproof processing is administered [ta] of the special fiber to which wise volume voice coil is connected directly, double coating does the visco-elastic polymers and the thermosetting metaplasia resin It was supported by [njienshiyaruetsuji]. Center pole of space of voice coil back t To per condition, filling up the acoustic material in the opening, you held down the influence with resonance. As for magnetic circuit, at diameter 80mm and weight 0.8kg, 14,500 gauss in flux density, entire magnetic flux 20,000 Maxwell To use the ferrite magnet, playback frequency zone to actualize 2kHz~20kHz, the especially 3 next distortion factor components You used above little 6kHz. Mid- high, with JA-0521 of dome type of the 5.0cm aperture, to the eater adopts the beryllium diaphragm in the same way, The copper ribbon line edge wise volume voice coil where heatproof processing is administered to be connected directly, the visco-elastic polymers and the thermosetting metaplasia resin It was supported by the tangential edge of the special fiber which double coating is done. Movement of edge To bore the air hole through the outer pole of the edge rear in order to make smooth, letting escape the air of the edge rear It was. In addition, as for the air cell which attaching the taper, hollowed out the center pole, at back of the diaphragm air resonance Linear of the preventing and the diaphragm guaranteeing operation, you held down the distortion at the time of large input. As for magnetic circuit, diameter 100mm and weight 1.2kg, entire magnetic flux 12,000 Maxwell, flux density 15,500 [gau] The ferrite magnet of [su] was loaded. This beryllium mid- as for high, the playback of 500Hz~10kHz lap Wave number zone was actualized, the part of 2kHz~6kHz where even among these the especially distortion is little was used. As for the mid- bus, with JA-1205 of cone type of the 12cm aperture, using the cone paper which is finished lightweight, now It did. Voice coil was being something which winds the copper ribbon line where heatproof processing is administered, diameter 42mm. As for the edge, the cloth being something which was processed specially with the resin material, vis-a-vis the amplitude inside use zone the high linearity the truth You had displayed. As for magnetic circuit, with ferrite magnet of diameter 90mm and weight 1kg, entire magnetic flux 60,500 [matsu] Those which are 11,300 gauss in [kusuueru] and flux density were loaded. As for this mid- bus, 400Hz~ It actualizes the playback zone of 8kHz, using the part of 600Hz~2kHz where even among these the especially distortion is little, now it does, It is. As for woofer, with cone type unit JA-3065 of 30cm aperture, conical type of corrugation entering The [re], the pulp cone also the division vibrations were few held down. In the edge the urethane which is superior in airtightness The roll edge was adopted. As for magnetic circuit, diameter 156mm and weight 4.4kg, entire magnetic flux 200,000 The powerful large-sized ferrite magnet which is 10,000 gauss in Maxwell and flux density was adopted. [nometsukusu] of nylon fiber type of the Dupont corporation to be adopted by the voice coil bobbin, [etsu] of the copper ribbon line Adopting the long voice coil of the [jiwaizu] winding, the operation where the linearity is good was guaranteed. Plug The copper cap being put in the tar pole, the magnetostriction was held down. As for this woofer, lowest resonance frequency 20Hz, as for playback frequency zone with 20Hz~2kHz, below 600Hz The zone where the distortion is little was used. As for frame with the aluminum die-cast make of 1.3kg, gross weight 6kg It had become the structure which supports the woofer securely. Network wound the [horumaru] line whose in the coil direct current resistance is little in the bobbin of the ferrite core entering Being installed mutually perpendicularly in order is used, to decrease the inductance of the coil now It did. The MP condenser whose quality is good was adopted for the condenser. Crossover cycle As for number, woofer mid- bus at the clo sou over frequency of 600Hz 12dB/oct, mid- bust, mid- High with 2kHz 12dB/oct, to mid- high the eater was made 12dB/oct with 6kHz. As for enclosure, with bookshelf type of complete closed mold, as for surface oak finish, only baffle plate black It had become the finish. As for material, also the whole surface with particle board, as for baffle plate and liner thickness 25mm, Other things with thickness 18mm, had become strong ones which administer reinforcement to the various parts. Like above, as for NS-890, as a Yamaha ordinary model, as 4 way systems of the enthusiastic design SI They were 1 units where also lifting and the being settled of sound were thought well. It was put between name machine NS-1000M and NS-690 There was the feeling which with feeling, loses, but, also elbowroom of the playback range was felt, it was the speaker of capability group. Below, portion of the catalog of that time is introduced. ________________________________________ Tweeter of beryllium mid- highly New design mid- bus and woofer. Being bright in total, luxurious To new dimension, it flies with the character, Being luxurious, unique tall boy type Yamaha 4WAY. The specification of ●NS-890- Type 4way4 speaker airtightness type Use unit Woofer JA-3065.30cm cone type Mid- bus JA-1205.12cm cone type Mid- high JA-0521.5cm dome type [tsuita] JA-0520.3cm dome type Maximum permissible input 80W Rated input (JIS continuation) 40W Output overpressure value 92dB/W/m Frequency characteristic 40Hz~20,000Hz Lowest resonance frequency (fo) 40Hz Impedance 8Ω Crossover quality Bass - concave sound: 600Hz (12dB/oct) Concave sound - medium treble: 2kHz (12dB/oct) Medium treble - treble: 6kHz (12dB/oct) Level control Mediant treble continual yes deformation Enclosure content volume 55 liters Enclosure Particle board Wrapping finish Oak make-up External size 375 (W) ×745 (H) ×317(D) mm Weight 31kg
Đôi loa này tôi ghép với Sansui alpha 607Extra, đầu đọc Teac ZD5000 đánh thẳng qua đường Power amp, nghe âm thanh gần giống băng cối.
Em cũng đang dùng đôi này nghe đĩa than jazz và classic rất hay. Càng nghe càng thấy hay. Đôi này độ nhạy 92db.
Chao ban: phonaudio Đôi loa này tôi cũng chuyên dùng để nghe classic, tôi thích âm thanh của nó, vì có thêm loa trung màng giấy. Tôi chưa được nghe 1000M nên không dám so sánh, còn NS690 thì tiếng không hay bằng nó. Đôi loa 890 nay cũng ít xuất hiện trên thị trường. Thân mến
Chào bác Ahoang! Em thấy ưu điểm đáng kể của nó là tiếng cân bằng, thể hiện tiếng nhạc cụ tốt, nhất là khi thể hiện giao hưởng, đặc biệt em thích nó vì nó không áp đặt tính cách cho bản nhạc mà chính người nghe sẽ cảm nhận được nhạc tính của bản nhạc đó một cách tự nhiên. Đầu tiên nghe nó hơi lạ, sau chính vì ưu điểm đặc biệt trên mà em thích nó. Em chưa nghe 1000M nhưng chắc là khó đánh hơn em này, và khi nghe đĩa than em mới hiểu tại sao các bác khác lại khó phối ghép như vậy....
Trước em cũng lọ mọ tìm hiểu nhiều về các model, giờ nếu có điều kiện thì sưu tầm cũng hay, và để thỉnh thoảng nghe đổi giọng. Em vẫn thích sự truyền tải nhanh, chính xác của dòng loa này.
Cái power Yamaha của em, 4 tụ Yamaha to bằng lon sữa bò mỗi cái 22.000mF + 4 tụ For audio Elna to bằng lon Heineken mỗi cái 100.000 mF :shock: - toàn bộ tụ to nhỏ lớn bé ... không biết bao nhiêu cái ... đều là For audio Elna - khoe tí chơi :
Em có 2 em này thì mời khách luôn. Bóc sò 1 em đem nướng, bóc Bia ken 1 em đem uống, phê ù 2 tai khỏi cần nghe nhạc. hehe dân nhậu.
ô bạn e có cặp ns-635 đòi bán 3tr, có đáng để sưu tầm không các bác nhỉ? http://articulo.mercadolibre.com.uy/MLU ... arantz-_JM
Để sưu tầm thì đáng quá rồi còn gì, để nghe thì phải xem. Nếu chán thì bán sang Mẽo, bọn này thích Ya lắm!
Lâu không được nghe tiếng dòng Yamaha, em thấy nhớ, nay muốn tìm một đôi NS10M hoặc NS1000M để thỏa sầu, có bác nào biết ở đâu có loa tốt cần bán vui lòng cho em biết với nhé. Em cảm ơn các Ya-Fan trước nha. Thân mến
1 em pow dầu bảng trong dòng b2 ghép với 1 em pre cuối bảng trong dòng c2 , sao bác ko kiếm 1 em c2x cho nó môn dăng hộ dối
