MBL-81dB

what can you say?

I can`t say anything if i saw this picture!HAHA

This one? just piece of cake, It does have a power amp to drive the woofer, Mid and High not that difficult.just need alot of space and time and money only!! :-)

SF Extrema 火車頭

SF Extrema 火車頭 x 2

**SF Extrema 火車頭**

Mark ML3 can fix it up.

我老友比火車頭玩到頭出火。最後用Krell航天版FBP-600降復！

英國巨無霸膽後級.一套四件.點著幾拾支6550.一片火海.
但對著"火車頭"都係力不從心.

我老友比火車頭玩到頭出火。最後用Krell航天版FBP-600降復！^^^^^^

這個已是最基本/低要求。

ML23.5 推妘ㄤL問題.

Extrema 唔難推C！

"""為何好多人講難推喇叭會比易推喇叭好聲?此話正確嗎?"""

those hard to drive speakers are fundamentally flawed.

designers just dont know how to design a easily driven speaker to cater for more amps and expand the market.

早期的全音屏風鋁帶喇叭，1 ohm內阻，見amp燒amp。x2

工作時連 1 ohm都無，部amp重有命。

"工作時連 1 ohm都無，部amp重有命。"

Interesting, then what amps were used to drive them?

"Interesting, then what amps were used to drive them?"

I cannot remember the exact story and the who's who in it, but the story goes (in the 70s I think) that these low impedance current drawing speakers (mostly US brands) were giving the then normal low powered amps (many of them tube amps) a hard time. Then, a few designers from those speaker builders started their own amp designs that can drive low impedance loads. Brands like Counterpoint, Krell, etc., came up and "doubling wattage for every halving of impedance down to 2 ohms (sometimes even 1 ohm)" became the new "standard" in these US muscle amps. It became a pseudo-standard that we often still consider today. Of course, in actual listening, we may often find that more power does not equal better sound and horrendously difficult to drive speakers have slowly fallen out of fashion.

It was Apogee and Krell...

then it was Sonus Faber and Krell...what actually indirectly helped spawn the LS3/5a revival...

Ken Kessler from HFN equated the sound of Sonus with LS, then cheap folks started buying up 2nd LS and hooking them up to 200W beasts...

Linn Sara and Isobarik killed Naim amps for pleasure...

Electrostatic speakers, planar speakers, huge speakers with multiple drivers, all are with difficult loads -- actually, most of them, they sound quite good. Even horn speakers are not an easy load.

Some speakers are with built-in amps inside for the bass - so an amp is required to push the mid's and the high's. Below is an Evolution Acoustics (which costs USD 75K) speaker.

最難推個人認為係Wilson Audio亞歷山大, 因為用咩機都推唔出好聲..