回復 7# 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，可想呢部機動力有多大！{:6_193:}
至於你提到 o既damping factor，中文即刻（阻尼系數）作用都係控制單元彈出後再拉它回來時動作的快慢，如果有顯示就更好啦，可以作一個參考。
但如果太高都唔係太好 ，除非你的喇叭低頻過肥，咁高阻尼系數便可有效地收緊低音單元，如你的喇叭屬於乾廋咁就，不適而高阻尼系數啦，會令到低音死死實實，所以你見大部份膽機or合拼機的阻尼系數都係得200到,有啲低過100所以配搭適合的喇叭時,低頻彈跳力同層次感都令人回味。
最後：最重要除左睇w數/阻尼系數，最緊要了解自己用的喇叭特性後先配搭，咁就完美{:6_190:}
回復 11# fuman0123
well said!{:5_89:}
OIC....what speaker ching is using? since this machine got EISA awards this year according to ...
babuwa 發表於 2010-8-10 01:44 http://www.post76.com/discuss/images/common/back.gif
Agree...Mono Design... Strong Power.. 150w/8 ohm and 300w/ 4 ohm... Much stronger than Luxman 505u.
But .. Does it come with Bypass Input for AV use?
OIC....what speaker ching is using? since this machine got EISA awards this year according to ...
babuwa 發表於 2010-8-10 01:44 http://www.post76.com/discuss/images/common/back.gif
B&W cm7+cmc2.
Yes.. I agree, the power output should be sufficient and the performance should be a guarantee since it's got the EISA award.
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 http://www.post76.com/discuss/images/common/back.gif
Thank you c hing.
本帖最後由 lemonstar 於 2010-8-10 10:20 編輯
Agree...Mono Design... Strong Power.. 150w/8 ohm and 300w/ 4 ohm... Much stronger than Luxman 505u ...
Big_McIn 發表於 2010-8-10 09:46 http://www.post76.com/discuss/images/common/back.gif
is this direct mode = av bypass?
i am afraid those sales will bullshit about this.
http://www.harmankardon.com/resources/Brands/harmankardon/Products/ProductRelatedDocuments/en-US/OwnersManual/om_hk%C2%A0990_english_eu.pdf
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 http://www.post76.com/discuss/images/common/back.gif
well explainations c hing. thks, learnt a lot. ^_^
我而家部rotel 2 channel ... website寫係1000添~ {:6_123:} 不過都冇試過其它牌子型号
冇得聽到分別了
just discussed with HK , instead of a button for changing the passby function.
It's actually a RCA input
is this direct mode = av bypass?
i am afraid those sales will bullshit about this.
lemonstar 發表於 2010-8-10 10:18 http://www.post76.com/discuss/images/common/back.gif
Input # 19
PROCESSOR Analog Inputs. These Inputs
go directly to the power amplifier section
of the HK 990, bypassing the Volume and
Tone Control. Here you can connect the
Front Channel Pre Out L+R signals from an
external surround processor, to benefit from
the superior power of the HK 990 and control
volume from the processor. NOTE: Only use
the Processor Input with a device that has its
own volume control!
Yeap. It does come with the"AV Bypass" input.
BTW Your Rotel 2 channel power amp is a Class D power amplifier. So it outputs 1000w and benefits AV enjoyment.
You can have another option for an Pre Amp like Roksan PR15B 'cause you have enough power channels unless you want to listen to PLIIz.
Agree...Mono Design... Strong Power.. 150w/8 ohm and 300w/ 4 ohm... Much stronger than Luxman 505u ...
Big_McIn 發表於 2010-8-10 09:46 http://www.post76.com/discuss/images/common/back.gif
According to the explaination from it's manual, it should have AV by-pass, If compare with Luman, I think only 509U have such power output performance {:6_183:} , For Accuphase, need E550, both are top model Integrated amp of it's own brand.{:6_185:}
