Spectron Musician III MK.2 or Audio Research DS450

Pound for pound...I would go for the Parasound given John Curl's reputation for the past 40 years. The review of the A21 in England seems to be more positive and accurate.
HiFiPig and Hi-News reviews love the amp describing it as very
natural, organic, and very smooth with outstanding bass and soundstage and imaging. Its a steal for $2300.00

Audiozen

The speakers that i already have are the Golden Ear Triton Two's with powered subwoofers (Class "D") already...

Regards

M.

Ah!..Sandy Goss speaker's. Their known for their extremely
neutral open transparent sound. Very power hungry even though they have high sensitivity at 91 db's. It would be best to use warm sounding electronics with the Tritons. I would never use Class D amps on the Triton's knowing Sandy's history with DefTech. The Parasound would ad a very good balanced sound with its warm full character that would result in a more forgiving relaxed sound from the Triton's.

Miguel..I highly recommend you check out two videos on Youtube. Type in the search bar "Parasound A21 Amp". The listed menu will show two videos. Both are narrated by the owner of Parasound Richard Schram. Their both sponsored by Audio Advisor. One video is Parasound A21 Overview, the other is Inside the Parasound A21. It provides helpful tech
knowledge of how good the amp is.

Miguel..there is an option that I would highly recommend you take advantage of or it will probably be gone in several days. Up for sale on Audiogon is perhaps one of the top three performing integrated amplifier's on the planet. The CODA CSIb. Very powerful. 330 watts
@8ohms and 660 watts @4ohms. Mint condition with only 100 hours of play time. $4500.00 out of Colorado.
Having owned and listened to Coda gear in the past, this beast is about
as musical as you will ever want regardless what you run through it. Built like a Rolls Royce. Warm, rich, lush, with outstanding bass and dynamic's. It will give a lot of separates a run for their money. You will notice a solid top cover since it does not get very hot for a Class A/B amp. Rare to see this on Gon. Will bring out the very best from your Triton's. Hand built in Sacramento.