Suggestions for an integrated upgrade please

As someone who owned the NHT 2.9 with Bryston gear (what was I thinking). I can recommend the KRELL K-300i which I own now. I use the KRELL with an equally bright headphones as the NHT and the KRELL tames that beast nicely. I would expect the NHT to work nicely with the K-300i.

Interesting review of this amp on the ASR website! This is a 15 watt amp!😄

Maybe a used Krell K-300i?  Lots of power, class A sound, lots of very favorable reviews, and is not bright.  Not sure if it can tame the OP hot sounding tweeter.

The vinnie rossi l2 is a great integrated

Try the Canor intergrated units . The hybrid unit well made and acurrate unit .

I second the Naim Supernait 3. Pleanty of power, drive your speakers (PRaT)

A lot of good information here... BUT... unless you’ve (or they’ve) listened to the same set up with various amps you (they) really can’t conclude much.

I would have no idea what electronics (i.e. source, preamp, amp, etc.) would sound good to you, since I’ve never heard a set up like yours with various electronics - nor, do I know what sounds good to you. That would be true of anyone else posting a suggestion.

However, I can attest to the quality of the sound of Harbeths driven by Hegel electronics - since I have that set up. And... as Alan Shaw suggests... his speakers do, quite litterally, sound best with Hegel electronics. Because I have several Harbeths and I’ve listened to them with various amps - both tube and solid state - I can make this statement - but - only in the context of what sound qualities I prefer.

And... that is the point... you will never be able to adopt all (or any) of the good suggestions in this thread... and... necessarily, achieve the sound you seek... except by mere chance!

So - you should start by contacting the mfr of your speakers and inquire what electronics they use to demo their speakers, as well as seek the experiences of others with your speakers. There is no other way - except - "chance."

At one point, I had a BAT VK3000.  I was a wonderful integrated and had a great soundstage and a magic to the sound that made it easy to listen to for hours.  I changed speakers and had to move to something with a bit more power otherwise I would still have it today.  You can probably find one for around $4K used.  

You can get a Naim Supernait 2 or 3 in that price range. If you want something new, the new Lyngdorf 1120 is an amazing piece of kit. It is extremely impressive and has built in room correction. At $2500, I think it is one of the better hifi values currently going.

@mbolek I purchased the original SU-G700 (of which the reviews are based on). I believe the M2 is available in Europe, but has not been offered for sale in the US. I purchased my unit (in silver) from Galen Carol Audio in San Antonio (although I'm in Denver). If you get a chance to listen to the SU-G700, I think you'll find the detail and depth of soundstage to be absolutely top shelf, as well as the fit and finish of the unit. Really worth a listen! Good luck in your quest.

@scotthiga    Curious what version you purchased?  Are the newer M2s available yet?

The Qualiton a50i is an excellent sounding integrated, it retails for $8200 but I think you could bargain a little. Class A 50wpc tube amp.

+1 @panzrwagn

All of his suggestions can also easily be serviced if there is ever an issue

One idea could be a new Benchmark AHB2 + Benchmark DAC3 HGC - form factor would be same size as one integrated amp, and you hit both amplification and DAC in one go - fits your budget & simplifies your chain. I actually would be pretty curious about those

If you are looking at used McIntosh, I’ve worked with the folks at Audio Classics several times and the experience was good

BTW, I run Roon/Tidal off my MacBook Pro - I enjoy it just fine and very convenient

Good luck! Fun decision - let us know what you chose, when the new piece has arrived

You need big power to drive those speakers Think High current 150 peak current and up.I don’t find those speakers to be bright or to sound hot in the highs......

Ayon Tritons 3

I just bought a Technics SU-G700. Superb sonics with a kind of retro vu meters look. It really brought out a lot crisp detail that I had not previously heard. I'm running Zu Audio Omen MK.I with the Technics SU-G700. You may want to read the reviews for yourself. I would not have considered Technics until very recently, but am ecstatic with its performance. 

As rbstehno said, the NHT 3.3's do not work well with all amps. I owned a pair for 7 years and experimented with a few different amps and eventually settled on separates. An Audio Research SP-10 and a Counterpoint NPS 400, both of which had tubes. It was the only way I could listen to the speakers for more than an hour at a time. The tweeter was way too hot otherwise. That was the combination that was demoed to me when I bought them. My Audible Illusions preamp and Aragon amplifier were close but ultimately I decided that I needed something a bit mellower sounding.

I would second Tomic601's recommendation of the Aesthetix Mimas which I currently own. I sold the 3.3's many years ago but since you like them the hybrid Mimas would be a great choice. Good Luck!

I have an older Krell KAV300i and I love it.  Don't think I'll ever get rid of it.

I purchased a Belles Aria last year and couldn’t be happier.  I absolutely love it.

For price point, I've always liked the Quick Silver stuff. Clear, with presence and able to transfer a lot of the dynamics and timbre of instruments and voice.

They only recently came out with an integrated below 2K and I would be intrigued to hear if it approaches the ability and verisimilitude of their separates.

If it does, it would be quite the catch.

There is a Pass Int-25 for sale here on AG. Probably could be had for under $5000.

A Pass Int 25 will be sufficient for your room and listening levels and will have the realism you are looking for. The Copland CTA408 is also worthy of consideration if you a tube amp. On Jadis, I would look for an i35 secondhand in preference to a new Orchestra.

Aesthetix Mimas used. Tube front end, SS drive almost anything. I also like the ARC and Rogue recommendation, add VTL to the pile also.

+1 on the McIntosh, all day long!

Pass INT60. Used is in your price range.

For everyone complaining about the source, he has a Singxer Su6 that seems to have its own clock. The digital signal should therefore be reclocked already when it gets to the dac. I don't think another streamer will improve the sound much.

A super-integrated is the NAD M33. It's well worth a look. New is $5500, but you can find it online for much less. It's excellent and includes DAC, streaming, phono.

Amps make L & R, no more.

ALL Imaging is Phantom.

L & R starts in the studio, goes thru .......

It seems you do not want to hear it, but like others, I suspect your Imaging disappointment comes from the chain feeding the amps, 

@jerryg123  said

” AH any of the Qualiton Integrated but that will be a stretch with you budget.

With those innefficant speaker I would stay away from any Raven and look at Rouge even PrimaLuna.”

+1

@ghdprentice said

” Audio Research VSI75 if you can find a used one. Or they just released the i50. That should be enough power if you don’t go for really loud rock. Incredibly natural musical equipment. “

Another +1

When you ask for input for an upgraded integrated to match your speakers, you would hope that you would get feedback on what amps would work with your speakers, not just amp feedback. I had your speakers over 20 years ago and not just any amp will work with them, it doesn’t matter much about the efficiency of the speaker to some degree.

With your nht’s you have 2 parts of the speaker that I treated differently, the speakers on the front and the 12” woofer. 
 

The NHT tweeter is a metal dome type and you need a warm sounding amp to tone it down. If you look at most smaller tube amps, they will be fine for the front panel speakers but will not control your woofer, your will get more sloppy bass and the volume won’t be inline with the other speakers.

My suggestion (I actually did both ways) is to get a good quality tube amp or warm sounding SS amp for the 3 speakers on the front baffle (maybe the rouge Cronus magnum with the kt120 tubes or a McIntosh 6500 type integrated) and then get the nht’s sa-3 amps for the woofers with the volume control to match woofer output to the other 3 speakers. In a small room, it’s tough to get the woofer output to match the output of the other 3 drivers if you go with a under powered amp, which brings me to my other recommendation:

Get a large warm sounding amp that will control the woofer and tame the tweeter. The McIntosh 6900 was a good fit back when I had the speakers. I also went the separates route with the odyssey monoblocks with a classe preamp.

Goid luck

Luxman (various models), especially if you're looking to buy used.  Should be several within your budget.

Wired 4 Sound STI1000v2. At 460W per channel will have plenty of power to drive your speakers (or just about any speaker) with authority and delicacy. Currently, out of stock at factory but available used. A great audio bargain and you’ll have plenty of $ left to upgrade your source. Try to find unit with binding post and wiring upgrades.

"Jadis Orchestra Black integrated amplifier | Stereophile.com" https://www.stereophile.com/content/jadis-orchestra-black-integrated-amplifier

Jadis Orchestra, musical all the way.

I may be off topic, but I just love love love that you mention WAF in the same post as NHT 3.3’s.   I had 3.3’a for almost 20 years, and man they visually take over a room.  At my house, the acceptance factor was exactly “zero”, or whatever score corresponds to “anywhere but the living room”.  
Anyway, no wisdom to add about the 3.3 + integrated.  I had luck my best experience with solid state separates.   I always used a 50W BEL amplifier, which was a glorious match.  I had a decent experience with a Quicksilver tube preamp, but finally settled on a Krell preamp feeding the BEL.  

Best of luck!

I agree with the two other guys I would definitely change your Source because that is the most important, I think you're integrated is very good and I think your weakness is your MacBook pro.If you don't have a good source nothing else matters in front of it cuz it won't sound good even if you have the most expensive components.

https://www.mcintoshlabs.com/products/integrated-amplifiers/MA352

What's that tag line from Porsche, "There is no substitute" 

Once you un-leash the 200W potential, play with the EQ if you want, connect to MM phono port or just use the outstanding headphone port; you won't find a better hybrid IA. If the day should ever come, you can sell it for what you paid for it.

check our a Parasound Hint 6
https://parasound.com/hint6.php

Solid stuff and brimming with plenty of headroom, dynamics and power. 

I was also thinking Musical Fidelity. There’s one listed for $2200.00, it’s the M6 Encore 225. Sounds pretty interesting.

I'd email Frank at Finale Audio.  No matter your speakers or other equipment, he'll point you in the right direction.  I myself use Apple TV with their lossless and digital master recordings.  But my DAC is a Hifi Bluetooth receiver too.  Best of wishes to your ears. 

SUGDEN

You're getting excellent suggestions on the integrated amps.

Once you figure that out. Here are some additional suggestions:

1) as mentioned the 87db speakers may be veiling some of the timbre and detail. Think about getting something  in the 91db+ range.

2) flac files are still compressed files. Try to transition to full-size wav files. Storage is cheap these days. If you use iTunes, set it so it doesn't 'manage'  your files. For some reason iTunes kept making my wav files lossless so I had to transition off iTunes for my music. They sound much better for it.

Kinki Audio INT EX-M1 $2,395 215wpc @ 8ohms , Class A/B,3 year Warranty. China

kinki-studio.com/ex-m1

Exposure 3510 INT 110wpc @ 8ohm Class A/B $3,000 3 year Warranty. UK

exposurehifi.com/portfolio-items/3510-series

Any Musical Fidelity in your price range.

You might consider these 5 - 

Marantz PM10S1 (Refurb) $4,999 200/400 w/Ch, all analog, 2-Balanced in

Luxman 505 UXII $4995 100W/Ch all analog, 1 set Bal inputs

Cary Audio SLI-80HS $4995 80 W/Ch, no Phono

McIntosh MA-252 Hybrid $3495   100/160W/Ch, 1 set Bal, Phono, Sub Out

Mark Levison 5805  (B-Stock) $6495 125/250 W/Ch Digital/MQA/Phono Stereophile Class A

2 Japanese, 3 American; 3 Solid-state, 1 Tube, 1 Hybrid, Technology wise, this covers the scope. I would hold out for the Mark Levinson myself, or go with the McIntosh because it is not only competent, it is sculpture. The high-end Marantz amps don't get much coverage in the US, but when they do, people are shocked at how good they are. The Luxman is also very, very good, and has lots of flexibility. Cary is a veteran tube amp shop, and they don't often put a foot wrong.Switchable beween Triode and Ultralinear modes might be enlightening.

@chipcalzone I agree listening to my X200 now.

Wonderful.

Anything by Belles, Modwright or De Havilland.

Audio Hungary Qualiton X200, it's the best integrated tube amp I've owned.

Pathos Lagos.

AH any of the Qualiton Integrated but that will be a stretch with you budget.

With those innefficant speaker I would stay away from any Raven and look at Rouge even PrimaLuna.

SS I would look at any of the new Class D stuff. Bel Canto, LSA. Technics they are quite captivating.

A No brainer made in USA  Coda CSIB integrated biggest podded 3 kva transformer over 120 amps short term on tap ,3 power choices ,10 year warranty 

lowest power 18 wpc pure class A 1st watts then 150,300, 600 Nelson pass engineering team from Waay back. 2020:stereotimes best of 

great BurrBrown electronic volume pure class A preamp section 

I bought mine from Mike AudioArchon for around $5500 will compete with anything at 2x the price .