If you have money, the 4 channels 電子分音 of B&W is well setup for you. All you need to do is just buying 8 mono blocks & cables! I don't think it is too difficult, right?


agree !

buying 4 channels 電子分音 of B&W is easy if you have money !

but 無玩味 !


the aim of 電子分音 is higher efficiency and sound quality ! amp for different frequency !
eg, powerful amp (no need good sound quality , class B or class D amp are OK )for bass 20hz -300hz,
you can use class A amp for mid and high .

hifioldman

with your using different topology to drive different drivers can be a no no. simply you do not know if same level of input will equate to same level of output. you can easily make highs too loud or bass too loud and unless you redo the volume settings you will not get the balance right easily.

a link to crossover calculator for diyers:

http://home.comcast.net/~customcarstereo/calc_cr.html

電分可以好簡單,亦可以好復習..

簡單,玩一些內置電分和amp的有源speaker, 如: ATC, Dynaudio專業.........你只需接上前級和電源, 便可享受電分的音質, 比玩single amp更簡單,有錢買就得,無需知識,耐性,心機.



復習, 如navyseals兄所說:你做廚師，你自決定amp及單元，及點"安置"呢班家伙"和諧共處" 包括set恰當的分頻點/斜率/電平/EQ等等.............
要有電聲知識,對真聲,對錄音過程有認識, 對單元對amp有認識, 有耐性, 有心機, 有錢, 有地方, 有個好老婆....才玩得惦.

cpu8088

a lot of problem in 電子分音

a lot of knowledge and experience are required

a lot of adjustment and try will also needed !

bass below 300hz is not so sensitive,

above 800hz is sensitive !

電子分音 is very complicated !!

playing big single amp first,

or buying the 4 channels 電子分音 of B&W is well setup for you


BB

an example of electronic crossover

http://www.sound.westhost.com/project09.htm

hifi oldman,

I have different thought

150 Hz and above, electronic crossover (and T-amp as too) doesn't have good advantage.

However, from 40Hz to 150Hz, an active crosssover had significant inprovement in - definition, power, imaging and accuracy.



It is Passive couldn't deliver this range easily, especially there is no excellant and good damping powerful amp in front.

電分可以好簡單,亦可以好復習..
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(1)最簡單的，如Gauss兄說，買現成電分speakers，聽說大陸"大極典"有隻電分喇叭，4-5K平平地，可試下既，名牌的就幾皮野喇! (小心有魚目混珠的所謂電分，其實是bi-amp etc)

(2)較複雜，先來2路電分，可買2對全音喇叭，例如一對6-8"一對3"，分頻點自己試，反正2對都係可"食"20-20000hz,同意用300周分，但必須必須小心，如果"上莊" 是一對音頭加號角，或者是一對普通球型單元(如cone or dome) 你要想清楚後果，因300周分，對高頭/單元負擔極重，一不小心，燒!!!

300周分(或150周) 用2對全音，都好玩既!

(3)最複雜，不外多路分音，搞到一屋單元，是否好? 天知!

電子分音 is high 玩味 product !

bass need power !

the passive crossover can eat a lot of power from the amp ! eg, 300W through a passive crossover, you may get only 150W or much less to the woofer

therefore, 電子分音 is efficient in handling this kind of case.

you can observe from the past, big jbl bi amp, ATC, small Linn 電子分音

the Adam , at present

a lot of way to play,
get what you want.

師兄:
我是用3路電分, 只知3路音壓要接近是比較容易處理, 但相位,延遲,等等. 都不清楚, 請師兄指點有什麼要主意及用什麼方法處理. Thanks.

ck2007兄：

相位,延遲都是針對分頻點兩隻單元的相位波形，針對調校同步。

電子分音system ＞??

但相位,延遲,等等. 都不清楚, 請師兄指點有什麼要主意及用什麼方法處理. Thanks.
-------------------------------------------------
而家d數碼式電分器多數有delay,據例，如高音Horn比中音horn擺前20cm,可用電分器delay高horn 20cm(約0.58ms) 通常能平衡高及中，使高不會凸出來!

相位方面，電分器都有polarity調整，但一般數碼式電分器無相位偏移(因電容及電感導致)所以那polarity調整相信只為因應個別單元的相位調整而設，而不是因為傳統被動分音器於分頻點附近做成的相位問題而設。

用那種好？
CDP ＞ digital xover ＞ DAC ＞ preamp ＞ poweramp ＞ spk

CDP ＞ DAC ＞ analog xover ＞ preamp ＞ poweramp ＞ spk

還有考慮我有LP訊源，如果digital xover要加ADC.

analog xover對音質會有很大影響嗎？

電子分音是否終極選擇?

我認為係. 尤其digital xover可以好理想咁分得好靚, 又冇相位失真. 如果相將原廠喇叭改電分, 真係唔可以冇測量工具去先了解原廠既設計. 再設計電分做番原廠既特性, 再tune吓改善其不足. 正如好多師兄所講, 太難啦...

還有考慮我有LP訊源，如果digital xover要加ADC.
-----------------------------------------------

如用DCX2496,不用另加ADC,因DCX2496已經內置，只需把step up的LP信號入2496的Input A/B(左/右)即可，但是用LP輸出似乎???
建議用CD數碼輸出係最好!


CDP ＞ digital xover ＞ DAC ＞ preamp ＞ poweramp ＞ spk

CDP ＞ DAC ＞ analog xover ＞ preamp ＞ poweramp ＞ spk
------------------------------------------------
2樣東西完全不同wor!
第1種係數碼電分(如DCX2496)，係電子分音的一種，第2種係被動分音，仍然用喇叭分音器。
要試電子分音當然係第1種，而電子分音的優點及難處同樣多，但不仿一試，但如果3路就要有3套amp,3套喇叭，一闊3大!

還有第1種玩法你加DAC,即飛起DCX2496的內置DAC,首先要識把電腦(Sharc 32bit)的經過分頻的數碼信號"截出"再入2-3部DAC,這樣就非常貴的玩法!


analog xover對音質會有很大影響嗎？
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這個很難講，攪得好既被分可以勝攪得一般既電分，同理，搞得好既電分可以遠超過一般被分!

電分需要較長時間調整，需極大耐心，反為錢也不一定用很多，我用3套t-amp及PA單元，DCX2496亦一樂也，有些人用幾部山水amp推JBL單元都非常不錯，睇你是否識玩及有無耐性!

CDP ＞ DAC ＞ analog xover ＞ preamp ＞ poweramp ＞ spk
-------------------------------------------------

sorry!!
原來說analog電分，如behringer 3400!

注意analog的電分仍有相位漂移，只不過它是先分頻率給amp，係傳統電分，但構造與喇叭分音一樣，就是仍有電容電感等，數碼的就唔同，用電腦計算，但平價的(如dcx2496)仍然有一定的相位問題，只是情度較輕微!

Heard someone said in a hifi shop claiming the ultimate "good" sound could only come from 電子分音 by using mater record (mother tape) as source.
Agree or not?
_______________________________________

In theory - Yes.

In practice - No.

Just look around and count how many active crossover setup sound "normal"....?....

電子分音都有佢自身問題, 無話邊一樣就係終極選擇,

係咪終極選擇唔係問題, 最緊要玩得好玩得精彩ja,

總之就play hard啦~

Sorry, 問錯問題。

我現有系統已覺效果好唔錯。
Esoteric P2 ＞ Tact 2.2mini ＞ ARC SP11 ＞ Poineer 3ways xover ＞ power amp x 3 ＞ horn speaker(EV T350+Altec 288C+TAD 1601a

Tact room correction 非常方便有效，以全頻量度；本身它是2+2聲道即２路分頻，但要直出power amp. 聲音會變硬，所以都是用sp11+ poineer３路電分。用Tact是可以數碼補賞接近自己裝定心水頻響曲線，它可以同時記錄９個曲線，即時轉換很容易比較音效，我在stereophile上看了review Wilson Audio MAX3有頻響曲線照抄，效果比一般平線的好。

只是計劃setup第二套系統（不同地方）都會是電分，因buget不夠，心目中是用equalizer+xover可以達到接近效果，之前請教過師兄還有Time assignment等問題，所以問問師兄意見。