you may try Harbeth or Focus.

There is no many good brand still doing Horn system. many close already. you may need to bid online. JBL still got horn. not bad. but not as good as old one.

faileung hing
I know many people use single end small power amp to drive horn, but I don't know horn can play violin well? also size too big for my room!!
Ah! JBL have slim size horn design now, but the sensitivity just around 90db!!...
will take a look on harbeth & focus..

i am not working in agent or dealer shop.

Hi,
I don't think large woofer need to use big power amp.

on the other hand , many people use small power tube amp(but 幼細) to match high efficiency(94-96dB) Horn system.

and the sound is pretty good.

Harbeth is quite easy to drive. if you prefer 現代聲,Focus Audio and Volent HK ,quite good.

Hi faileung hing,
Thanks your advise!
yes, I have too much requirements, but is real, I normally listen loud with classical and pop, violin, piano...!! just want to enjoy music!!
At the beginning, I hope bookshelf spks can fits my room... but after some time (also not an easy experience to drive a bookshelf spks) I feel sonic effect not balance enough! so I thinking about speaker size and power handling...
as C-hing said : 大喇叭要用大 Amp = 貴 !! so I hope can find a easy drive pair!!
looking for those within 10"...

ck1357 hing,

you got a tough requiprement la, but normally a 3 ways floorstanding speaker will meet your choice.

the sales said their 10" woofer got 89db and easy to drive, you may test it with a small power tube amp, and you can double check what they say la. sorry I did not hear the PMC one, can't response.

張三李四王五 hing:
yes, 大喇叭可以做到的褲腳都郁 when playing 管風琴. but 1x6" ~7" can't have that air moving volume.

1 x 12" woofer surface side = 4 x 6" woofer surface side ar.

ck: if you can't afford, buy a 10" ~ 12" la.

＞＞＞ 大喇叭始終聽多D野...
feel又夠
嘆又夠

大喇叭要用大 Amp = 貴
小喇叭可用細 Amp = 無咁貴

right ?

Hi cpu8088 hing,

let me response to your question 1 by 1:
1. yes, chart is produced by equipment, but you need to trust testing equipment, there is Clio/ATB/Klippel and LMS etc... many. if you don't trsut 1 brand's testing eqiupment , use few,

I know some speaker factory use 3 , Clio/ATB and LMS for counter check. normally measurement mic is very linear, they are measured one by one before they sell to buyer, and buyer need to input offset value in their system after they put in their lab.

2. For Soundstage.com, if you read their backgraound info, they test in 無殘響室, no sound rebound from all 6 side of the wall. speaker and mic are not placed on the floor, 零空place in the centre of the room.

You may find more info on AES journal for measurement and I found books about Electro Acoustics on Public Library , Hong Kong.

3. SPL /impednace are two main infos you should look at, if you are experience, when you look at the SPL, you can read which area should got higher and which area got lower in dB,

and if you are more exp, when you see the chart , you know the sound char. if there is +1-2db in 4.5 ~ 6KHz area, hall sound will be more 開揚... ,

-1dB in 1.5KHz - 3KHz is definitely not a bad choice as human ear is more sensitive in the range.

impednace can tell you the lowest frequency bass value, reflect port type or closed cabinet , lowest impedance value,

is it too far from their speaker Norinal value, if so, Tube amp need adj the jacks

(some 8Ohm speaker got better sound when they place in 4Ohm jack, you will know why!)

will it burn your SolidState poweramp, 是否大食....etc.

4. People argue on graph because they do not really know what the graph representing ar.

faileung,
I also want to use bigger (up to 10") but some sales told me their 10" speaker got 89db but not easy to driv! (eg PMC-IB2) need higher current to drive...! so I'm in doubt that my 7" got 89db same as 10" then which one be more easy to dirve?
furthermore, I don;t know which speaker can meet : slim size, higher sensitivity, easy to drive, can play loud with classical and pop, nice String and piano, good punch and bass...too too much requirement!! since horn is not strong for string so I didn't consider, but most high db spks be horn design!!!

"""People lie, chart does not."""

i am not so sure about this

1. charts are produced by equipment. are you sure equipment is accurate? eg the mic?

2. the room may not be perfect for measurement

3. what to measure is arguable. eg frequency response, impedance against different frequencies, pulse, sensitivity, distortion etc

4. people can augment graphs or measurements

I believe if it is a89dB, I believe 6" is better. For a 10~12" , normally it is 92-94dB. and actually you buy 10" ~ 12" is because it got high dB(in some extend,many people say 易推). therefore, if you buy 88~89db, why buy a 10" ar?
if you have enough space to put a 10~12" woofer speaker, but a higher efficiency one la .

大喇叭始終聽多D野...
feel又夠
嘆又夠

＜＞ yes!!! agree,
but a chart still can't represent the sonic effect!!
hi fi is fun !!

yes, not many model send to SoundStage.com for review.

Actually, Stereophile (US) , Hi-Fi + (UK) magazine does measure each component they review. it is much more scientific and meaningful.

If we only read the reviewer subjective article , very diffcult to find the real sound of that components. People lie, chart does not.

本人喜歡大喇叭，細細聲.

It is different to 小喇叭, 細細聲 ga.

I always prefer 大喇叭.

If the spks specification state the impedance 6ohm normal and 4 ohm minimum (if this is true), is that represent the same measurement that the impedance chart show the minimum 4ohm of its impedance.

thanks faileung,
got the way to read the charts, the web also provide "learn more" about their measurement... will take as ref. thanks
while there are not many speaker models in their measurement index (list).. do you know other similar web site provide more models?

let take the Auguest 2008 Thiel as example.

In chart 5 , it is the impedance curve.
this woofer go down to 50Hz (the valley) and below got no sound already. the lowerst impedance part is 200Hz around 4Ohm , and the impedance is pretty flat without drop down below 4Ohm , quite good ar.

(I am not thiel agent's staff).

For the Electrical Phase, not many use, if it is the Micphone's acoustic phase, much more meaningful.

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