Possible amp change .

[Hopeful]

Or it could be titled best amp for NS1000's .

My amp / speaker combo has been settled for a while , its a Yamaha AS-2100 into NS1000's ( domestic version ) and it sounds great and does everything I need but I am getting an itch to try a different amp ( I know I'm doomed to a lifetime of box swapping :-) ) .

I have previously tried a valve amp ( Luxman SQ38S ) and whilst it had its plus points it wasn't best suited the the NS1000's , it was a very low NFB design which I think contributed to it struggling with the bass . Also a vintage Yamaha C4/M4 pre power combo which was uber fast , dynamic and detailed but lacked colour and texture . The AS-2100 sits somewhere in the middle .

If the V(irtually) U(seless) meters on the AS-2100 are to be believed my listening is all done with less than one watt so there should be plenty of options .

So what do you think folks , can you help me compile a list for a bit of internet research , new or old it doesn't matter .

[Light Dependant Resistor]

Hi Philip
I made a decision about 6 years ago to use mono block style power amps, with passive LDR attenuation. I settled on 2x Quad 306 where one channel of each amp
drives each speaker. The NS1000 midrange as you likely already know in particular deserves really good low distortion amplification.

My next choice would be 2x Quad 303 - although now elderly they are a very good amplifier when restored.

All the best finding the right combination,

[hornucopia]

I often wonder if things have 'got better' over the years ...re using old equipment. I still happily use a Hafler DH 101/200 combination (albeit with some uprated/modded ingredients). And my Leak 3090 speakers stlll sound excellent.
Good design lasts.

[philv]

I am enjoying my Lentek integrated with kef 104/2.
I really like the combination.

It is also supposed to be a great match with your yams.

[oldius]

I have had the NS1000 with many amps and my personal opinion is that they sound excellent with most things! I have heard them, or had them, on the end of whopping solid state, small T amps and valves. My favourite with them is the Lentek, which is fussier than its size and weight would suggest, but well matched is an outstanding design.

[Pharos]

I wouldn't recommend a Quad 303 having bought one in about '76 and found it to lack the necessary control on a pair of Tannoy Gold 15" bass wise. I Sold it very quickly.

IMO most modern SS amps, especially those which are DC coupled right through are pretty near perfect, with only a slight signature, I've had a few and they were all very good. The speaker is a far more variable factor with many times the distortion, even than the NS1000 at about 0.1% in the mid.

[Barry]

I wouldn't recommend a Quad 303 either. They have a relatively high output impedance, so only a moderate damping factor. They were principally designed to partner the Quad 57 electrostatics, whose panels have a very low mass anyway so need little damping.

When it came to use with Tannoy speakers, most studios chose the Quad 50E monoblocks with output transformer coupling.

A better choice might be the 405-2 and later models.

[Hopeful]

Has anyone tried a class a Sugden or Pathos TT with some Yammies ? .

[Lurch]

Orbscure on the wam is very happily using an Accuphase E-306 with his Yammies.

[drSM]

try a cheap n cheerful TPA3255 from China. get a 48V switching PSU - its immune to the vagaries of that.
Plenty of power., grip on bass and surprisingly good on the highs - the NS1000 never seems harsh at all at all.

[Hudz]

try a cheap n cheerful TPA3255 from China. get a 48V switching PSU - its immune to the vagaries of that.
Plenty of power., grip on bass and surprisingly good on the highs - the NS1000 never seems harsh at all at all.

Shahrin could you possibly post a link to the tpa3225 amp you use please?

[drSM]

Shahrin could you possibly post a link to the tpa3225 amp you use please?

this is the one from Yuan Jing https://www.yuan-jing.com/tpa3255-high-performance-ultra-hd-class-d-stereo-amplifier-board-315w-x-2

then i got this one

https://www.lazada.com.my/products/kguss-class-d-tpa3255-mini-hifi-audio-digital-amplifier-board-300w-300w-dc50v-i365337191-s520651297.html?spm=a2o4k.searchlist.list.4.10a37f 95X8BD7n&search=1

as i mentioned they are visually and sonically identical.
you may also consider this from 3e , and they also do a monoblok version

https://www.ebay.com/itm/333125278726

use 48V 600w(or greater) psu

i have ordered this lower powered version the TPA 3250 which i may use in another 3 way active project.
This one abt 30wpc i think but all it needs is a simple PSU that is supplied as a package

https://www.lazada.com.my/products/fx-audio-fx502spro-hifi-20-audio-digital-high-power-amplifier-home-mini-professional-amp-tpa3250-ne5532-2-70w-2-i310296356-s611202171.html

and there is also the 3251

[Hudz]

this is the one from Yuan Jing https://www.yuan-jing.com/tpa3255-high-performance-ultra-hd-class-d-stereo-amplifier-board-315w-x-2

then i got this one

https://www.lazada.com.my/products/kguss-class-d-tpa3255-mini-hifi-audio-digital-amplifier-board-300w-300w-dc50v-i365337191-s520651297.html?spm=a2o4k.searchlist.list.4.10a37f 95X8BD7n&search=1

as i mentioned they are visually and sonically identical.
you may also consider this from 3e , and they also do a monoblok version

https://www.ebay.com/itm/333125278726

use 48V 600w(or greater) psu

i have ordered this lower powered version the TPA 3250 which i may use in another 3 way active project.
This one abt 30wpc i think but all it needs is a simple PSU that is supplied as a package

https://www.lazada.com.my/products/fx-audio-fx502spro-hifi-20-audio-digital-high-power-amplifier-home-mini-professional-amp-tpa3250-ne5532-2-70w-2-i310296356-s611202171.html

and there is also the 3251

Thanks for taking the time, much appreciated, now for a little research.

[drSM]

I d be interested in what amp or amps you go for, Martin.
there s lotsa discusion on diyaudio abt these amps.
A friend visited me recently - now he has been a major tinkerer with earlier generations esp the 3116 - and admitted that diyers get into a frenzy abt replacing this bit and that bit after someone in the forum reports an 'improvement'.
He was pretty astounded by what an untweaked cheap Chinese TPA3255 can do in my semi active set when handling the High Pass , and when driving the stock standard Ns1000.
His conclusion was that it doesnt need any tweaks !

[Hudz]

I'm leaning towards this https://www.aliexpress.com/item/4000430083157.html?spm=a2g0o.cart.0.0.16593c00Qzho Wg&mp=1 at the moment, but haven't yet pulled the plug. I'll update the thread when I decide.

Unfortunately a build is out of the question as I just don't have the knowledge or the confidence:(

I have one of the tpa 3116d2 amps but the gain is really too high for me , hence the need for something different.

I'm also ordering one of these https://www.ebay.co.uk/itm/FX-AUDIO-TUBE-01-bile-preamp-tube-amplifier-preamp-bile-buffer-6J1-HIFI-MO/152647978361?_trkparms=aid%3D111001%26algo%3DREC.S EED%26ao%3D1%26asc%3D20160908105057%26meid%3D4cf49 be955d04ea2907fc8bafe33060e%26pid%3D100675%26rk%3D 1%26rkt%3D15%26mehot%3Dpp%26sd%3D152647978361%26it m%3D152647978361%26pmt%3D1%26noa%3D1%26pg%3D238005 7&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3A31b70bfc-4740-11ea-ae1e-74dbd1801e5b%7Cparentrq%3A0fed1c971700a4e9229a96d0 ffeb91d0%7Ciid%3A1 to try with my 405-2 amp.

Apologies for the thread drift:whistle:

[graham67]

Not exactly cheap, but the modwright kw200 integrated amp is a great match the best ns1000 rig i have heard was driven by this amp.

[Cherry]

this is the one from Yuan Jing https://www.yuan-jing.com/tpa3255-high-performance-ultra-hd-class-d-stereo-amplifier-board-315w-x-2

then i got this one

https://www.lazada.com.my/products/kguss-class-d-tpa3255-mini-hifi-audio-digital-amplifier-board-300w-300w-dc50v-i365337191-s520651297.html?spm=a2o4k.searchlist.list.4.10a37f 95X8BD7n&search=1


as i mentioned they are visually and sonically identical.
you may also consider this from 3e , and they also do a monoblok version

https://www.ebay.com/itm/333125278726

use 48V 600w(or greater) psu

i have ordered this lower powered version the TPA 3250 which i may use in another 3 way active project.
This one abt 30wpc i think but all it needs is a simple PSU that is supplied as a package

https://www.lazada.com.my/products/fx-audio-fx502spro-hifi-20-audio-digital-high-power-amplifier-home-mini-professional-amp-tpa3250-ne5532-2-70w-2-i310296356-s611202171.html

and there is also the 3251

Hi Sharin,
you suggested a smps psu for the TPA3255. Do you feel it is better than a linear power supply ? I have been looking at these and somehow similar wattage rating for linear PSU are not obvious. Do you have a suggestion for linear PSU if I would. go down that path ?

[drSM]

Hi Abraham
Yes. An electronics engineer friend of mine tells me that these new amps are relatively insensitive to the vagaries of smps, but then went on to say that a good linear PSU could or should
bring sonic benefit.
There s a chap on diyaudio on this thread Daniboun who has made a 40v linear PSU and put the torroid and big caps in a tea box !
https://www.diyaudio.com/forums/class-d/287470-tpa3255-diy-discussion-design-etc-170.html
i dont have the know how to build one of these so i am quite happily stuck with my Meanwell 48V 600W smps.
I am using my TPA3255 to drive the High Pass in my semiactively driven NS1000 upgrade ie its handling the 'highs' and it does a damn good job of it.

[hifinutt]

last time i heard the yammies playing it was with THE most humungus valve amps !!! i am not sure the sugden would sound good on them but i might be wrong , i find the sugden a21se to be very fast and incisive but i might be wrong . it was too much of a good thing with my impulse taus

[hifinutt]

now this might be something ??? for them

https://theartofsound.net/forum/showthread.php?67985-Fs-Leben-cs300xs

[Bethelcat]

...or what about a Conrad Johnson Premier 350SA, their first ever solid state ‘Premier’ amp with what seems in my system like unlimited power and supreme sound quality

Lots of reviews online for this very well regarded amp which I’m sure would go well with your speakers

:-)

[macspur]

Yamaha AS-3000?
Supposed to be an excellent amp
Mac

[philv]

There is now a Lentek on ebay.
Highly recommended.