[BetaWolf]

I've been listening to this for a few months now. I like how it doesn't color the audio at all. Powering my headphones, it's very unbiased. Now, I'd like something that's going to make the highs sparkle a bit and make the bass sound more punchy and tight. Objectivity and measurements be damned. I connected my K371 to my Sansa Clip+ and love the amplification in that.

For DACs, I could reuse my Atom DAC. It's not the end of the world if I can't, but I'd like something new with optical in.

For amps, I am looking at Liquid Spark, SAP-12, Magni 3+, Zen CAN, Archel 2, Topping A50, or AAA ONE.

For headphones, I own the Pro 80, CAL, K371, and 660S (single ended cable only).

 

[silent-circuit]

Eh. Just run EQ. Nothing you're looking at will be that much different.

 

[BetaWolf]

Eh. Just run EQ. Nothing you're looking at will be that much different.

Tighten the bass with EQ???

 

[ricksome]

Eh. Just run EQ. Nothing you're looking at will be that much different.

This is the correct answer but >>>> if you want a new toy insert a Schiit Loki+ in the signal chain.

 

[silent-circuit]

Tighten the bass with EQ???

Nothing you're looking at is going to "tighten bass"; proper eq may clean things up a little.

 

[Deolum]

Tighten the bass with EQ???

How would you tighten the bass with one of those amps you listed? What do you expect from a topping a50 instead of an atom? If you want fun then go for beats or something.

 

[buke9]

I don’t think the amps will increase the bass from others have a Atom, Spark , Magni 3 and Zen Can Signature 6XX and don’t think either are more bass heavy than any other the Zen Can does bring quite a bit more power with the balanced output .

 

[PurpleAngel]

I've been listening to this for a few months now. I like how it doesn't color the audio at all. Powering my headphones, it's very unbiased. Now, I'd like something that's going to make the highs sparkle a bit and make the bass sound more punchy and tight. Objectivity and measurements be damned. I connected my K371 to my Sansa Clip+ and love the amplification in that.
For DACs, I could reuse my Atom DAC. It's not the end of the world if I can't, but I'd like something new with optical in.
For amps, I am looking at Liquid Spark, SAP-12, Magni 3+, Zen CAN, Archel 2, Topping A50, or AAA ONE.
For headphones, I own the Pro 80, CAL, K371, and 660S (single ended cable only).

Not see any headphones you listed as very power demanding, so can't see a more powerful headphone amplifier making that much difference.
Maybe a headphone amplifier with a balanced headphone jack and a balanced headphone cable for the HD660s might help the HD660s (not sure how noticeable).
Higher end headphone would seem the likely path for improved audio.