FS Metrum Musette R2R 24 bit Dac

[Firebottle]

For sale is my Metrum Dac with upgrade modifications.

I bought this to see how the Metrum approach to R2R conversion performs, the answer is very well.

Top unit in picture:



The design was brought out in 2015 using the Transient DAC 1 modules, this example is later and uses the Transient DAC 2 modules which are a good step up from the DAC 1.
The DAC 2 modules use two 16 bit R2R chips concatenated but using the top 12 bits of each to give 24 bit performance with accuracy and low noise.

Has 2 coax SPDIF inputs plus optical and USB, with RCA audio outputs.






I have made 4 modifications to improve the performance even further, the first was fitting a filter on the mains input:




The second was to fit an ultra low noise regulator feeding the digital supply of the DAC 2 modules:




The third mods was to replace the two main supply reservoir capacitors with low ESR versions.

The forth mod was to increase the analogue supply voltages to the DAC 2 modules, the more advanced Metrum models have a greater supply voltage to increase performance, all using the DAC2 modules.

Offered at £550 including UK postage.

[Westendboy]

You have pm

[Firebottle]

This is a NOS Dac.

All PM's replied to.

[Pigmy Pony]

I've had the pleasure of having this on short term loan from Alan - well built and superb sounding, even my cloth ears could hear the improvements it brought to my CD player. Just bad timing for me to buy it

Buy with confidence, then sell it on to me in the spring, when I'll bite yer hand off

[Firebottle]

Now SOLD.