300B功放用家专栏 [复制链接]

[quote] 原帖由 [b]hifijeep[/b] 于 2004-8-27 10:41:00 发表
[quote]gdhzdym2 在 2004-8-27 10:31:52 发表的内容
据说300B电子管的中、高频很好，低频稍逊，播人声和弦乐非常出色，尤其是女声更是优美动听。[/quote]

没错!300B是个三十多岁的艳妇,让她干力气活肯定不行. [/quote]
那倒未必,
当初我用300B推天朗的CPA-5五寸(另做QWL箱体),灵敏度90DB,绝无脚软的感觉,
现在试飞乐十五寸更是得心应手

学习下

来报个到,我也开始玩300B了,以后常交流。

准备着手ＤＩＹ３００Ｂ单端，但管子不知道那个好些＜１０００＞左右的？

曙光就不错吗

请教各位大师300B国产边一家的胆平，靓，正。我是用来作单端功放的！

我昨天买一对二手金龙300B管，这对管如何啊

刚买了台科宝AS-6i REB ,加入300B的大家庭, 第一次玩胆机, 要跟向位前辈学野啦.

新人刚入手欧博的M500单端分体和T2，向前辈学习。

人气不足

  求助各位300b大佬,本人心仪300b好多年了,一直不能如愿.这次想咬牙买下:美国 CARY 300SEI    300b电子管合并功放,但要3w多呀,所以还下不了手.请问各位300b大佬,这机子值不值?!有没有同价格别的选择?先谢了.
[img]http://www.tubebbs.com/attachments/day_080708/20080708_c505fd266584d9064830z4rUYgDuyBF8.jpg[/img]

[quote] 原帖由 [b]ljj1967430[/b] 于 2008-10-4 9:38:00 发表
  求助各位300b大佬,本人心仪300b好多年了,一直不能如愿.这次想咬牙买下:美国 CARY 300SEI    300b电子管合并功放,但要3w多呀,所以还下不了手.请问各位300b大佬,这机子值不值?!有没有同价格别的选择?先谢了.
[img]http://www.tubebbs.com/attachments/day_080708/20080708_c505fd266584d90 [/quote]

[url=http://www.tubebbs.com/thread-77624-1-8.html]http://www.tubebbs.com/thread-77624-1-8.html[/url]

建议去上面网站看看评论, 个人觉得不值....
我要300B绝对是自己来焊..

柳州的金栅丝300B正在用，非常不错！

有没哪位高人对比过曙光的几款300B？
他们的300BA 300B-98 300BS，对比下来如何？

[quote] 原帖由 [b]ljj1967430[/b] 于 2008-10-4 9:38:00 发表
  求助各位300b大佬,本人心仪300b好多年了,一直不能如愿.这次想咬牙买下:美国 CARY 300SEI    300b电子管合并功放,但要3w多呀,所以还下不了手.请问各位300b大佬,这机子值不值?!有没有同价格别的选择?先谢了.
[img]http://www.tubebbs.com/attachments/day_080708/20080708_c505fd266584d90 [/quote]
[font=Wingdings][size=12pt]l
[/size][/font][font=仿宋_GB2312][size=12pt]使用单端式放大线路，[/size][/font][font=仿宋_GB2312][size=12pt]全机使用多种发烧级补品零件[/size][/font][font=仿宋_GB2312][size=12pt][font=Times New Roman]([/font][/size][/font][font=仿宋_GB2312][size=12pt]Kimber KAP[/size][/font][font=仿宋_GB2312][size=12pt]电容、Dala电阻、SCR苏伦电容等) ，全人手搭棚焊制[/size][/font]
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[/size][/font][font=仿宋_GB2312][size=12pt]输出变压器设计其空气间隙容量超大(比正常大一倍)采用高质漆包线及固蜡方法绕制[/size][/font][font=仿宋_GB2312][size=12pt]，故此它的输出效率高达[/size][/font][font=仿宋_GB2312][size=12pt][font=Times New Roman]15W[/font][/size][/font][font=仿宋_GB2312][size=12pt]×[/size][/font][font=Times New Roman][font=仿宋_GB2312][size=12pt]2[/size][/font][font=仿宋_GB2312][size=12pt][/size][/font][/font]
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[/size][/font][font=仿宋_GB2312][size=12pt]使用胆管：6SN7×3(前置及驱动)、300B×2(强放)[/size][/font]
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[/size][/font][font=仿宋_GB2312][size=12pt]特有耳机输出，可通过开关选择耳机输出或喇叭输出[/size][/font]
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[/size][/font][font=仿宋_GB2312][size=12pt]美国发烧天书《Stereophile》高度评价，连续多年荣获年度A级产品[/size][/font]
请你把你的箱子带到经销商处试听清楚，合不合你心意才确定吧！

美国 CARY 300SEI 价格几多？我认为价格合理的话可考虑。自己做吾系吾可以，但要有耐心和技术支持。

正在考虑Jolida朱丽达的300B
Model JD 300B

An offering of a Single Ended Triode (SET) integrated amplifier for your listening pleasure. Cosmetically the unit is finished in white metal (oxidized/sandblasted aluminum). The unit has four inputs and two fixed outputs with 4 and 8 ohm five way speaker taps. One feature not found on many SETs is a remote control. We have found with the volume variability in different CD discs, the remote comes in handy with an 9 watt amp. The unit has high speed soft recovery diodes with german capacitors. Matched with an efficient speaker the clarity of the highs and midrange are matched with the weight in the bottom end. If music is art for your ears, the JD 300B may be your sound painter.

Construction Details and Features:

Fully Integrated Stereo Amplifier with remote control: Input 500mV driving 9 watts, maximum 12 watts output.
Multiple Inputs: Front mounted selector switch-CD, Tape Recorder, Tuner and Aux. (for TV, DVD Player, VCR or Computer).
Custom Wound Audio Transformers with a core of German grain oriented silicon steel. 15th generation proprietary design. Secondary can be configured for a 4 ohm or 8 ohm load.
Top panel bias testing terminal with bias adjustment controls.
State of the Art Components: ALPS audio potentiometer, gold plated RCA input jack.



Technical Specifications:

Output Power (RMS): 9W X 2
Frequency Response: 35Hz-67KHz(+/- .65dB)
SNR: >89dB
Input Sensitivity: 500mV
Distortion THD: <0.1% (1KHz 8W)
Input Impedance: >50K ohms
Output Impedance: 4 and 8 ohms
Tube Complement: 300B 2pcs;5U4G 2pcs;12AX7A 4pcs
Dimensions: 17.5 inches wide by 13.5 inches deep by 8.75 inches high
Weight:  65 pounds  
Fuse:  110 - 120 VAC, 6.3 Amp Fast Blo; 200 - 240 VAC, 3.15 Amp Fast Blo

不知道有没有烧友用过或者有些专业建议的。谢！