AudioCircle

Audio/Video Gear and Systems => All Solid State => Topic started by: AllanS on 19 Oct 2022, 05:28 am

Title: Desktop Power Amp Recommendations
Post by: AllanS on 19 Oct 2022, 05:28 am
Any recommendations for desktop stereo power amps?  Prefer new.  $800 budget.  Solid state. A/B preferred but D okay. About  50 wpc min. 
I’m having a tough time finding anything besides the Parasound ZampV.3.  I like that form factor but am also considering the Schiit Vidar to sit under the desk.
Thanks much.
Title: Re: Desktop Power Amp Recommendations
Post by: Doublej on 19 Oct 2022, 11:49 am
Topping and Rega come to mind.
Title: Re: Desktop Power Amp Recommendations
Post by: Wayner on 19 Oct 2022, 12:19 pm
I have a nice little S.M.S.L amp (class D), that will crank out some tunes. SA-98E
Title: Re: Desktop Power Amp Recommendations
Post by: mcgsxr on 19 Oct 2022, 02:34 pm
Used Cyrus?
Title: Re: Desktop Power Amp Recommendations
Post by: Phil A on 19 Oct 2022, 03:30 pm
I assume with a desktop amp you are looking for at least one input (from a computer)?  Here's one - https://www.psaudio.com/products/sprout100-integrated-amplifier/#section-904-824
Title: Re: Desktop Power Amp Recommendations
Post by: JLM on 19 Oct 2022, 04:12 pm
Here's are left field recommendations:  Temple Audio (templeaudio.net) from England (all class D).  I've owned two pair of their very small 70 watt mono-blocks, one pair with wall warts and the other with their Super power supply units.  Current price is 500 pounds with wall warts.  Their Bantam Gold is 25 wpc and measures 13 cm x 13 cm x 4 cm (sells for 220 pounds).  Their Bantam One is 100 wpc with subwoofer/preamp outputs, 11" x 8.5" x 4", and sells for 1100 pounds.  (The exchange rate dollars for pounds is very favorable right now.)
Title: Re: Desktop Power Amp Recommendations
Post by: Don_S on 19 Oct 2022, 04:24 pm
I have a Parasound ZampV.3 with PSB Imagine Mini speakers used as a desktop system for my Samsung computer monitor/TV. I am not impressed. :( I know the PSBs are better that what I am hearing now because I used them with my large TV and HT receiver in my previous home.

Title: Re: Desktop Power Amp Recommendations
Post by: Delta77 on 19 Oct 2022, 04:33 pm
I would say look for a boutique little one man shop, and tell him what your budget is.
I know this is a mono amp, but something like this would be more desirable for the long haul.
Nothing worse than Buyers Remorse / Upgraditis.

Mapletree - Super Stealth+ Monobloc Power Amplifier $1,200..
Title: Re: Desktop Power Amp Recommendations
Post by: planet10 on 19 Oct 2022, 04:44 pm
Temple Audio (templeaudio.net) from England (all class D). 

A brand i had not heard about until my designer buddy in Yorkshire said he had gotten such and really liked it.

dave
Title: Re: Desktop Power Amp Recommendations
Post by: Mike-48 on 19 Oct 2022, 05:01 pm
If I were in your shoes, I'd consider this amp assembled from Hypex modules (https://www.buckeyeamp.com/shop/p/hypex-nc252mp-amplifier-2-channel). I have not heard it, but other Hypex and PuriFi amps I've heard were excellent -- comparable to Class AB amps costing more, in my opinion. At least one of the Buckeye amps was reviewed, then inspected internally, at ASR (https://www.audiosciencereview.com/forum/index.php?threads/buckeye-hypex-nc252mp-amplifier-teardown.18614/). (Whatever you think of ASR, at least someone knowledgeable has taken a look.)

Input is balanced only, and I wouldn't use it with speakers much below 4 ohms.

Good luck with your setup!

P.S. If you look at my setup, you'll see I am using Class D amps. I chose them after auditioning many different amps, mostly AB, up to and including the Pass X250.8.
Title: Re: Desktop Power Amp Recommendations
Post by: genjamon on 19 Oct 2022, 05:07 pm
You might want to consider the ClassDAudio miniGAN 5 that a bunch of guys are very happy with over in the Spatial Audio circle.  I have one on order, but haven't heard it yet.  But a stereo amp exactly fits your $800 budget, is quite small form factor, and would have 200 wpc into 8 ohms, so huge headroom for a desktop system to use with whatever speakers you could imagine, even those mini Maggie speakers.  I know ASR review panned it, but there are indications Amir didn't have a properly functioning unit for testing.  Tom, the manufacturer, has told me the stereo amp really doesn't give up any sound quality performance to the monoblocks, other than total headroom/output, which should not be a factor for a desktop setup. 

Alternatively, the miniGAN 3 is a bit cheaper, and would probably still have plenty of power for a desktop setup.
Title: Re: Desktop Power Amp Recommendations
Post by: AllanS on 19 Oct 2022, 05:29 pm
Excellent.  Thanks all.  I really appreciate the help.  Plenty to think about now.

Phil A. Thanks for the Sprout recommendation.  I probably should have added a bit more detail.  I was considering the Sprout but the setup includes a Schiit Lokius EQ.  Unless there’s a desktop integrated with processor loop I’d have to rely on the source onboard DAC.  I’m doing that today with an Optimus STA 300 fed by a BlueSound Vault.  But for the new set up I’ll eventually add a new source, probably a BlueSound Node.  The pre/headphone amp will likely be Schiit Jotunheim or Lyr.

Thanks again.

Title: Re: Desktop Power Amp Recommendations
Post by: exopolitks on 4 Dec 2022, 06:03 am
I had the Jot 2 as a pre amp for some active speakers and it worked great in a desk setup. Also a wonderful HP amp if you do that.
Title: Re: Desktop Power Amp Recommendations
Post by: AllanS on 5 Dec 2022, 03:43 am
Thanks for the recommendation.  I’ve only heard good things about it but I still haven’t done anything yet.  I was all set on separates but Phil A got me thinking about integrated and I’ve been going in circles ever since.  What I have works so I parked it for the time being and turned my focus on treating the room to get the main system dialed in.
Title: Re: Desktop Power Amp Recommendations
Post by: I.Greyhound Fan on 5 Dec 2022, 06:03 pm
How about a Schiit Vidar.  Whoops, I see that you have already considered it.

I would look at this integrated-
https://www.accessories4less.com/make-a-store/item/mufim2siblk/musical-fidelity-m2si-integrated-amplifier-black/1.html

https://www.whathifi.com/reviews/musical-fidelity-m2si

Or this Denon-

https://www.accessories4less.com/make-a-store/item/denpma900hne/denon-pma-900hne-integrated-network-amplifier-w/heos/1.html
Title: Re: Desktop Power Amp Recommendations
Post by: TF1216 on 5 Dec 2022, 06:23 pm
I am looking for a very similar thing to you, AllanS, for mini speakers to be used in an apartment bedroom. The speakers are very inefficient so I was hoping for over 150 watts from my amplifier selection.

As I started to research, the SMSL VMV A2 (https://apos.audio/products/smsl-vmv-a2-high-resolution-200w-x2-power-amplifier?variant=6771765903531&gclid=Cj0KCQiAyracBhDoARIsACGFcS5yxp0q5wUp8r2XZR0l0OF88jq_5-8r02jYUomuok8R0ecXxBRsUKgaAqfWEALw_wcB) looked appealing because it has optical input from the tv and Bluetooth, as well as, various other inputs. An all-in-on device instead of just an amplifier. Another option is the Sabaj A30a (http://www.sabaj.com.cn/en/productshow.asp?id=95).

Title: Re: Desktop Power Amp Recommendations
Post by: I.Greyhound Fan on 6 Dec 2022, 03:02 am
I am looking for a very similar thing to you, AllanS, for mini speakers to be used in an apartment bedroom. The speakers are very inefficient so I was hoping for over 150 watts from my amplifier selection.

As I started to research, the SMSL VMV A2 (https://apos.audio/products/smsl-vmv-a2-high-resolution-200w-x2-power-amplifier?variant=6771765903531&gclid=Cj0KCQiAyracBhDoARIsACGFcS5yxp0q5wUp8r2XZR0l0OF88jq_5-8r02jYUomuok8R0ecXxBRsUKgaAqfWEALw_wcB) looked appealing because it has optical input from the tv and Bluetooth, as well as, various other inputs. An all-in-on device instead of just an amplifier. Another option is the Sabaj A30a (http://www.sabaj.com.cn/en/productshow.asp?id=95).

Both those integrated's look interesting. If you get one, write a review.
Title: Re: Desktop Power Amp Recommendations
Post by: TF1216 on 6 Dec 2022, 04:19 am
Both those integrated's look interesting. If you get one, write a review.

You got it, my friend. Hoping to have some new speakers soon I'd love to bring over. They're going to be mini, over the top, and from a new company to look out for  :thumb: :popcorn:
Title: Re: Desktop Power Amp Recommendations
Post by: AllanS on 6 Dec 2022, 05:36 am
More interesting recommendations. Thank you.  I considered Music Fidelity for the main system and like the Denon but they’re both in a full size chassis.

SMSL has some intriguing offerings, as does every suggestion in the thread, many of which I’ve never heard of - Temple, Cyrus, Class D Audio.  Since an integrated would work I’ve also considered the NuPrime IDA but the NAD C700 would have everything I’d want in one package - if I want everything in one package.  I’m all over the place.  I have to remind myself it’s just a desktop.
Title: Re: Desktop Power Amp Recommendations
Post by: JLM on 7 Dec 2022, 01:04 pm
When it comes to power keep in mind that watts are logarithmic to dBs.  So 100 watts are just twice as loud as 10 watts and 150 watts is just over 1 dB louder than 100 watts.  Small loudspeakers can't handle lots of wattage.  OTOH having sufficient grunt provides commanding grip for improved dynamics and improved control.  Follow manufacturer's wattage recommendations.
Title: Re: Desktop Power Amp Recommendations
Post by: genjamon on 7 Dec 2022, 02:19 pm
Important general point, JLM, but I think the math is a little off.  100 watts is only 10dB louder than 10 watts, and doubling of watts only leads to 3 dB increases in acoustic power output each time.  But doubling of perceived volume is a different matter, and is frequency- and dispersion-dependent.  On a desktop, none of this should matter much, though.  Small amps should do fine with nearly any speaker.
Title: Re: Desktop Power Amp Recommendations
Post by: Krillin on 20 May 2023, 01:44 am
The Topping PA3s would be the best for desktop use. Distortion and noise level will be very good and the price is more than reasonable. And the Topping PA7 would be near state of the art performance and measured by AudioScienceReview.

I know Chinese brands are often frowned upon but a McIntosh for a desktop use just doesn't often make sense.
Title: Re: Desktop Power Amp Recommendations
Post by: Tyson on 21 May 2023, 04:00 pm
PS Audio Sprout meets all the requirements - https://www.psaudio.com/products/sprout100-integrated-amplifier
Title: Re: Desktop Power Amp Recommendations
Post by: planet10 on 21 May 2023, 06:10 pm
Retro. I expect very good (based on experience with original).

https://darko.audio/2023/05/still-wearing-flares-naim-introduces-the-nait-50/

(https://darko.audio/wp-content/uploads/2023/05/naim-nait50-3-1280x720.png)

dave
Title: Re: Desktop Power Amp Recommendations
Post by: AllanS on 22 May 2023, 03:08 am
For no good reason I set out looking for 50 wpc min but am quite happy to have ended up with a 10 wpc Gjallarhorn and Lyr for a bit more than I’d budgeted for an amp.  Finishing out the Schiit stack is a Lokius EQ and eventually a currently idled Bifrost DAC.
Other than way too many switches for a desktop and lengthy Lyr warm up I’m quite happy with the combo.  I was struggling with the atheistic of a non matching amp when Schiit dropped the Gjallarhorn.  It’s a rockin’ little amp.


(https://www.audiocircle.com/image.php?id=253059)


Title: Re: Desktop Power Amp Recommendations
Post by: Presb4 on 17 Nov 2023, 05:21 am

(https://www.audiocircle.com/image.php?id=258700)
I have been using the Schiit G-Horn on my desk at work for the last few months also and love it. It a great little amp. I have it powering a pair of Arendal 1961 BS and the combo is awesome sounding.
Title: Re: Desktop Power Amp Recommendations
Post by: AllanS on 17 Nov 2023, 02:16 pm
After living with the Schiit stack I came to realize that it really wasn’t a good fit for how I use a desktop system.  It sounds great but is way too complicated and overkill for how I use the system.
It was okay for the working from home daze when it’s on all day.  But a significant use is popping in for relatively short sessions where I reflexively reach to turn it on and want to do so quickly.  And 99.9% of the time it’s background music so I don’t need much.
Long story short PS Audio has a Nov sale going on that includes the Sprout, which I ordered soon as I got the email notification.  For the same inconsequential reasons for initially taking a pass, it’s imperfect but a much better fit.  It’s a particularly unattractive silver and doesn’t include a coax input.  But, at about 40% off list, it was an easy decision.
The remote should look familiar to those with Schiit gear.

(https://www.audiocircle.com/image.php?id=258702)
Title: Re: Desktop Power Amp Recommendations
Post by: snaimpally on 10 Dec 2023, 02:23 pm
The Fosi Audio V3 uses the TPA3255 (Tripath/Texas Instruments) chip, which is also used by other amp manufacturers, including Cambridge Audio. Check out the British Audiophile's review on YT where he opens up the unit and shows the high quality German and Japanese components inside. Ignore the specified power ratings as they are measured using a 48V power supply that has to be purchased separately. The amp is supplied with a 36V power supply that causes the amp to output less power, though more than enough for a desktop system.
Title: Re: Desktop Power Amp Recommendations
Post by: JLM on 10 Dec 2023, 04:01 pm
Suggest active (or even powered) smaller monitors for desktop use. 

Check out V-Fi's trading post offering (serene audio). 

Other options:  Audioengine A2+, Vanatoo Transparent Zero Plus
Title: Re: Desktop Power Amp Recommendations
Post by: rollo on 10 Dec 2023, 04:25 pm
  What about Vista ?

charles
Title: Re: Desktop Power Amp Recommendations
Post by: charmerci on 10 Dec 2023, 07:54 pm
  What about Vista ?

charles


I've tried a Vista and it's just okay. But then that was over 8 years ago.