Harman Kardon

babuwa

damping factor >200 (found in the manual)
by the way ,友誠邊間有得賣 ?
insane 發表於 2010-8-10 06:40

    Not weak wor.

babuwa

B&W cm7+cmc2.
Yes.. I agree, the power output should be sufficient and the performance should be  ...
lemonstar 發表於 2010-8-10 09:57

    I think this machine are well balance when compare with China brand integrated amp, even many china brand integrated amp can reach such power output and less than 10K, but the outlook, sound character and QC are really worry factors, as this machine are USA big brand and have such performance, ching please quickly go to listen and share with us

babuwa

回復  lemonstar


    我淨係睇佢能夠由150w(8ohm)跌到落(4ohm)時，跳升上300w都唔係好多機做到，可想呢 ...
fuman0123 發表於 2010-8-10 07:52

    果然係行家

babuwa

well explainations c hing. thks, learnt a lot. ^_^
我而家部rotel 2 channel ... website寫係1000添~  ...
lemonstar 發表於 2010-8-10 10:33

Even power output are important, but damping factor are also important too, espeically for Class D, last time I found Onkyo top model Class-D integrated amp (9755), have 150W@8ohm(DIN) output, but it only have 25 damping factor. then you know the facts.

Big_McIn

According to the explaination from it's manual, it should have AV by-pass, If compare with  ...
babuwa 發表於 2010-8-10 11:26

Both Luxman 509u and Accuphase E550 are designed and made in Japan.

That is why Japanese economic situation is so poor now.

fuman0123

回復 23# babuwa


    見笑啦

fuman0123

回復 12# matt


   

matt

for damping factor, it is difficult for us to know which one is better. each fty has it own calculation. from the figure, you cannot tell which one is better.
therefore better test it properly.
i strongly recommand hk can do as UK and US can borrow equipment back home to test the sound whether can match with own equipment even pay rental like 1000 for few days. because you may find when testing in shop is extrememly good but at home is very bad. not only room accoustic but also cable and set up.
but it never happen if you dont get better relationship with shop keeper or you brought from them before.

shing517

如果唔睇數字, 其實呢部機聲底如何呢?

lemonstar

Input # 19
PROCESSOR Analog Inputs. These Inputs
go directly to the power amplifier section
of the ...
Big_McIn 發表於 2010-8-10 11:07

actually i m using a rotel ab class p.amp, not the class d one.
Category:           STEREO POWER AMPLIFIERS
Model:          RB-1582
Title:          Classic Stereo Power Amplifier

Rotel has been engineering and manufacturing power amplifiers for decades. The RB-1582 presented here is the culmination of everything we have learned to date about amplifier design and sound quality. It showcases our experience in Class AB design with the implementation of select grade components throughout and over-sized power supplies featuring large toroidal transformers. Rugged, stable, and natural sounding the RB-1582 is the ideal foundation for a high performance music system. Features include 12-volt triggers for remote operation and an IEC detachable power cord. The rated output is 2 x 200 watts into 8 ohms.

Thanks Big Mcln hing, I will take a look at the pre  you mentioned