养眼-----40岁以上的人大多不会拒绝！

杨维中

！！！！

蚂蚁新手

交易区新帖推荐

[s:97] [s:97] [s:97] [s:97] [s:97] [s:97] 害人不浅[s:17] [s:17] [s:17] [s:17] [s:17]

杨维中

！！！

杨维中

原帖由 蚂蚁新手 于 2008-8-30 14:30 发表
[s:97] [s:97] [s:97] [s:97] [s:97] [s:97] 害人不浅[s:17] [s:17] [s:17] [s:17] [s:17]

烧吧，最后大家同归于尽！[s:14]

lcdm

原帖由 杨维中 于 2008-8-30 12:03 发表
养眼-----30岁以上的人肯定不会拒绝！45岁以上的直接毒死！！！！！！！

这就更离谱了，不用说30岁就是50岁的也有能听出其中一些喇叭必然存在缺陷的人，如同轴单元的声音干涉、静电屏的高频失真。点声源中多点声音源未必就比单点声源差，相反的多点声源才有能更真实还原声音的，只是在音箱的摆位要多下功夫。

杨维中

交易区新帖推荐

！！！

杨维中

原帖由 lcdm 于 2008-8-30 14:35 发表



这就更离谱了，不用说30岁就是50岁的也有能听出其中一些喇叭必然存在缺陷的人，如同轴单元的声音干涉、静电屏的高频失真。点声源中多点声音源未必就比单点声源差，相反的多点声源才有能更真实还原声音的，只是 ...

没什么离谱的，这世上原本就没有完美的东西（更不用说仿真的电声了）。空气不纯净、水质有污染、人性有缺陷，社会有不公........，但我想我们还得活下去吧！[s:14]

[ 本帖最后由 杨维中 于 2008-8-30 14:46 编辑 ]

lcdm

但就有50岁也会拒绝啊，所以就不是肯定的东西[s:97]

kjw

反毒.辑毒大队已上路.预计二小时后到达武汉.杨老师快快跑[s:14] [s:14] [s:14]

杨维中

原帖由 lcdm 于 2008-8-30 14:47 发表
但就有50岁也会拒绝啊，所以就不是肯定的东西[s:97]

老弟太较真了，我快60了，我也玩MP3的！[s:14]

杨维中

原帖由 kjw 于 2008-8-30 14:49 发表
反毒.辑毒大队已上路.预计二小时后到达武汉.杨老师快快跑[s:14] [s:14] [s:14]

好嘞！各位回见！:victory: :victory: :victory:

叶荣玉

[s:6] [s:6] [s:6] [s:6] 真的太毒了！！！！[s:18] [s:18] [s:18]

nickchan

看完之后毒发身亡....[s:16] [s:16]

tw1812

LS2B MKII:

Frequency response	± .5dB, 1Hz to 100Hz, -3dB points below 0.1Hz and above 300kHz
Distortion (THD)	Less than .01% at 2V RMS output.(Typically less than .005% in midband)
Noise & hum	20µV RMS residual 1HF weighted noise at main unbalanced output with gain at minimum (100dB below 2V RMS output). Balanced input noise 100dB below 1V input.
Gain	Main Output: 18dB (Optional 9dB gain reduction through an internal jumper)
	Balanced output: 24dB (Optional 9dB gain reduction through an internal jumper)
	Tape output: 0dB
Input impedance	50K ohms unbalanced, 3 megohm balanced.
Output impedance	200 ohms main output. 400 ohms Balanced 1, Balanced 2 (10K ohms minimum load and 2000pF maximum capacitance)
Output polarity
Maximum inputs	20V maximum unbalanced, 8.5V (+21dB) maximum balanced
Rated outputs	2V RMS 1Hz to 100kHz into 60K ohm load (maximum output capability is 30V RMS [60V RMS balanced] output at 05% THD at 1kHz into a 10K ohm load)
Power supplies	Electronically-regulated low and high voltage supplies. Two transformers (toroid for high voltage). Line regulation better than .01%
Tube complement	(1) 6922
Power requirements	100-135VAC 60Hz (200-270VAC 50/60Hz) 60 watts maximum
Other
Dimensions	19" (48 cm) W x 5 1/4" (13.4cm) H (standard rack panel) x 10 1/4" (26cm) D. Handles extend 1 5/8" (4.1cm) forward of front panel. Rear chassis fittings extend 7/8" (2.3cm).
Weight	30 lbs.

tw1812

SP-3A-1:

Frequency response	±1dB 10Hz-30kHz, IHF load
	±1dB of RIAA 30Hz-30kHz
Distortion (THD)	Harmonic distortion: Less than 0.005% at 5V RMS output, IHF load
	IM distortion: Less than 0.005% at 5V RMS output, IHF load, SMPTE method
Noise & hum	High level inputs (unweighted wide-band): more than 90dB below rated output
	Magnetic phono inputs (below 10mV input) 20Hz to 20kHz: more than 70dB below rated outputs. Power line components (hum): more than 66dB
Gain	57dB, magnetic phono input, main outputs, IHF load
	34dB, magnetic phono input, tape outputs, IHF load
	23dB, high level inputs, main outputs, IHF load
	0dB, high level input, tape outputs, IHF load
Input impedance	Magnetic Phono: 50K ohms typical (150 pf shunt)
	High Level: 100K ohms typical
Output impedance	Less than 600 ohms @ 1kHz (all outputs). Recommended load: 20K or greater
Output polarity
Maximum inputs	300mV RMS @ 1kHz (magnetic phono input). High level inputs overload proof.
Rated outputs	Maximum output: 25V RMS @ 1kHz, all outputs
Power supplies
Tube complement	(2) 12AX7 LN, (6) 12AX7
Power requirements	120/240V, 50/60Hz, 60 Watts
Other	Tone controls: Bass and treble variable ±18dB at 10Hz and 15kHz respectively
Dimensions	15 5/8" W x 5½" H x 12½ D
Weight	14 lbs. Net. 20 lbs. Shipping