STA-9

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rustydoglim

Re: STA-9
« Reply #380 on: 23 Jan 2023, 03:38 pm »
STA-9 is the warmest amp in all Nuprime amps; it is suitable for your music preference.

simon740

  • Jr. Member
  • Posts: 46
Re: STA-9
« Reply #381 on: 23 Jan 2023, 06:53 pm »
STA-9 is the warmest amp in all Nuprime amps; it is suitable for your music preference.

Thank you. I borrowed this combo and will test it with Graham speakers tomorrow.

regards,
Simon

LeonidK

  • Newbie
  • Posts: 1
Re: STA-9
« Reply #382 on: 7 Feb 2023, 08:14 pm »
Hello, I'd like to choose between STA-9 and IDA-8. My current DAC is the amazing SMSL M500 MKII, which provides clean, full-bodied, smooth and detailed tone. I could sell it, go for IDA-8 and save some money, but it's not much in a long run and I wonder, how much I'd miss by going for integrated option. I haven't decided on speakers yet, but they will be either B&W 706 S2 or Kef LS50. BW need a lot of warmth and body on midrange, LS50 are so neutral I don't care, I'd be fine with a little warmth. I'm kinda worried about this harmonic-thing interaction between LS50 and STA-9, but I don't quite understand it. If LS50 are perceived as overly energetic on top then warm, smooth amp like STA-9 should balance it? That's how I understand it. If there really is some weird amplification of treble, then I assume it will hurt even more on super bright BW.

rustydoglim

Re: STA-9
« Reply #383 on: 10 Feb 2023, 02:53 pm »
Unless you must save space and just want a bookshelf system with IDA-8 for a small room, go for the separate components where you have the flexibility to expand or the power to drive speakers in a bigger room.

Chops

Re: STA-9
« Reply #384 on: 3 Aug 2024, 12:00 pm »
Still running these STA-9 amps. Just one currently, in my bedroom system...

Also, a pair of Magnat Signature 503's, and a single HSU STF-2 subwoofer, getting its high-level signal from the amp. Oh, and of course, my 3rd Pangea Vulcan rack that I bought years back. Everything else remains the same.




Chops

Re: STA-9
« Reply #385 on: 4 Sep 2024, 09:32 pm »
Drove 150 miles round trip a few days ago to pick up something I've always wanted...

Finally found a near mint pair at a extremely good price. Bose 901 Series V with Series VI EQ and tulip stands.










I've heard the 901's several times before, a few times in Circuit City, and once or twice at the PX at MacDill Airforce Base. I have to say, they sound much better in my room. A lot more natural than in the showrooms. In the showrooms, they probably had the EQ jacked all the way up as well as the tone controls on the gear used with them.

I have all of the controls on the EQ set to "flat", and I really see no need to adjust them as the 901's sound pretty darn good in this room, the master bedroom. This room is roughly 13' x 16' x 8', powering them with one of my STA-9's, and it's more than enough power for this room and these speakers. I have the 901's center part of the rear "V" about 31" out from the front wall. This distance also helps in the fact that I'm getting a much more balanced overall response out of them than what I remember in the showrooms.

The bass is quite punchy, detailed and extends a lot deeper than I expected, easily down to the low 30's, possibly a little lower from listening to a few of my very familiar pipe organ recordings. Midrange seems to sound good, though not quite as full as my Maggies in my main rig. And the treble seems fine to me as well. Obviously, not super airy, but open and extended enough for a pleasant, smooth sound that's non-fatiguing. They're definitely not lacking in either extremes like all of those clowns claim (no highs, no lows, must be blah, blah, blah). I really have no complaints with them honestly. However I do wish those tulip stands were a bit taller.

I have always been attracted to the 901's unique looks and design, and even more so, their use of multiple 4.5" drivers producing that kind of sound. I mean, I wasn't even playing them loud last night, and not only were both windows in this room rattling, but so were the sliding closet doors and the main door!

The above was when I was playing Boz Scaggs' Thanks to You. Boz's voice came through loud and clear, and all of those deep bass notes came through effortlessly and with authority.

This system is by no means a replacement for my mine rig, but it's just about as enjoyable to listen to. I'm glad I finally got my hands on a pair of these little suckers!

AllanS

  • Full Member
  • Posts: 603
Re: STA-9
« Reply #386 on: 5 Sep 2024, 12:54 am »
I really have no complaints with them honestly
And that is all that matters.  Congrats on checking off another box!

Chops

Re: STA-9
« Reply #387 on: 5 Sep 2024, 04:22 pm »
And that is all that matters.  Congrats on checking off another box!

Yes sir! One day I'll get a nice pair of large Polk SDA-SRS 1.2TLs.

Chops

Re: STA-9
« Reply #388 on: 16 Sep 2024, 10:54 pm »
Just threw in a JungSon JA-1 preamp. Quite the solid unit.


Chops

Re: STA-9
« Reply #389 on: 25 Sep 2024, 04:19 am »
Just replaced the stock Bose Series VI EQ for the 901s with my dbx DriveRack Venu360. Dialed in a quick and dirty rough version of the stock Series V EQ curve, and wow! What a  drastic improvement over the stock Bose EQ with this literal 10 minute tuning via PEQ. I have barely scratched the surface with this obviously. When I get more time, I'll do more tweaking in the 8 band PEQ as well as the 31 band GEQ. I'll also try out the AutoEQ (basically room correction) via the included RTA mic. More to come!