Marantz pm6006 upgrade?

A Yaqin tube integrated around 40-50wpc.can be had for your budget & with your speakers probably blow your mind...

The Exposure amplifiers are considered very good. I would probably look for a 2010S2 as it would have more life left in it.  

Ah, it's an integrated. I was not aware of an amp with built in DAC

Run to Underwood HiFi. He has a couple new W4S integrates at outstanding prices

Musical Fidelity M2si

Thank you for valuable advice, lastly what DAC should i prefer to maintain the sound i have now

Any dac advices ?? I need a better one comparing to in-built dac in marantz pm6006

Schiit?

Schiit recently released the Modius dac for $200.  I've had a few of their dacs and they really make great sounding gear.  I've had the Modi 3, Modi Uber, Bifrost Multibit among others.  I'm waiting for my Modius to arrive.

Thank you, i will be looking for Schiit products then :)

If you like the Marantz house sound, a touch warm and emotionally connecting but with detail, there is a Marantz PM 8005 integrated amplifier for $800 (it lists for $1,200). It is made in their reference factory in Japan and sounds great. It does not have a DAC, but the Marantz SA 8005 is a nice DAC + SACD/CD player. One is available on Audiogon now for a good price as well. I own both models and think they sound great.
John Dean