人家說30000的琴接上5000塊的音箱,出來的聲音只有5000的價值!! 但是如果都要買50W以上的好音箱的話~~ 那鄰居不就吵死ㄌ~~因為50W以上的音箱,要把音量開到一定的程度,聲音才會讚阿!! 我相信大家都沒有好的隔音設備!! 那到底要不要買好的音箱ㄋ??真是個疑問耶!!!
給brian兄: 誠致的向你道歉, 是我寫錯了....功率放大為10Log(P2/P1).. 20Log為電壓或電流單獨的放大增益... 是我數學不好....太差了 >< 為了不誤導各位, 所以我把上面謬論刪除了! 還請大家見諒~
姑且不去理會音量開到多大才能發揮音箱的音色 但是至少不論是 solid-state, all-valves amp 或是 hybrid amp 音量開到一定的時候, 才能感覺到動態方面如 picking 方面的表現 (我相信這個很容易就能察覺得到) 在上述的前提下 : 有些牌子的 100 watt amp head 聽起來的音量像是其他牌子的 150 watt amp head 如果沒記錯, Mesa/Boogie 也是"標榜"小瓦數, 大輸出音量的 我這兒有兩顆 Marshall 的 amp head, 同樣接 8 ohm 的 Marshall 1x12" cabinet 150 watt AVT amp-head (hybrid) 和 100 watt JCM800 amp-head (all-valves) 在相同的音量刻度下, JCM800 的音量卻的確大很多, 就如很多位兄臺所言, 可能差別就在 JCM 800 後級是真空管的線路 雖然 AVT 150 (head) 是 150 watt 的, 但是才足夠於小場子表演或是 5,6 坪的練團室使用 那樣音量對我來說, 剛剛好能和其他樂器的音量抗衡又可以把音色發揮到最好, 所以不要被瓦數所唬到..... 沒有必要去追究音箱的瓦數到底需要多少 器材是完全看自己的使用情形來做挑選的 帶把自己的琴, 插進音箱試試, 喜歡就付了錢拍拍屁股帶走
</font><blockquote>引言:</font><hr />原留言人 小斌: 人家說30000的琴接上5000塊的音箱,出來的聲音只有5000的價值!! 但是如果都要買50W以上的好音箱的話~~ 那鄰居不就吵死ㄌ~~因為50W以上的音箱,要把音量開到一定的程度,聲音才會讚阿!! 我相信大家都沒有好的隔音設備!! 那到底要不要買好的音箱ㄋ??真是個疑問耶!!!</font>[/QUOTE]五十W一定會很大聲嗎？ 而音箱一定要開大聲tone才會好嗎？ 不一定吧？多試一下吧！
音箱開大聲喔.... 這我就不曉得我開ㄉ有多大聲ㄌ 因為鄰居從沒來"腳"我過~我是用marshall-100瓦系列ㄉ~大概也只開到4分1ㄉ音量而已~而且我不太喜歡MARSHALLㄉ擴音...不夠碎裂.... 佳里也不需要用太大吧~純練習ㄉ話 我覺ㄉFENDER小顆ㄉ 高低音全開就很適合ㄌ~ 效果器接上去~倒是可有可無~
Folks,...lets clear some "power" confusions,,,,,, Twenty years ago the rated output power of an Amp was the continuous tone output level of the Amp;.... A 300 W Amp could produce a 300 W tone all day long.,,,,,, Then it was recognized that most audio Amps are not used on continuous tones, but are used on audio signals.,,, Audio signals consist of many tones of different power levels... So customers didn't need an Amp that produced continuous tones all day,,,, they needed an Amp that could produce audio signals all day.., This is easier and cheaper to do..... Manufacturers today have adopted various methods for rating the power output of their products.,,,,,,,,, This is causing much customer confusion. Manufacturers, industry and standards groups have contributed to defining how to rate power output for audio Amps. There have been many methods proposed for rating amplifier power. Many of these proposals—such as tone bursts tests—attempt to rate the instantaneous or short duration power levels. Since audio signals vary in duration and level, the validity of these rating methods depends on how the Amp is used and the characteristics of the signals it is amplifying.,,,,,,,, Some methods use non-audio signals, such as square waves, to determine the amplifier power rating,,,,, this causes the number to be higher. Today, the primary standards are dictated by the Federal Trade Commission (FTC). Many manufacturers also use standards developed by Industry associations—such as the Electronics Industry Association (EIA). Some manufacturers use other methods. Safety agencies (particularly those in the European Union, and Underwriters Laboratories here in the US) have developed standards for measuring average continuous power of an amplifier. These are used in turn to measure maximum AC line power consumption and to confirm maximum temperatures. Safety groups have determined that typical worst-case power for an amplifier amplifying an audio signal occurs at one-eighth of the non-clipped output power (measured with a 1 kHz tone). The Amp is cooked with a bandwidth-limited (20-20 kHz) pink noise signal whose power is equal to 1/8 of the tone full power. Measurements are then made for temperature and AC line power consumption. Thus 1/8 of the maximum tone power before clipping represents realistic worst-case continuous power levels for an audio amplifier. Standards bodies are always reviewing and updating industry standards. We can expect standards for audio amplifier testing and ratings to change as our customers' needs and usage change—and as our knowledge and technology improves.