We don't know the operating points or the resulting output of harmonics etc. Without going into the operating points etc and using an oscilloscope, there's very few magical changes on a simple design. At this point you may end up changing the case. Careful of the dimensions as foil caps are typically physically larger than MKP. I see they state change the caps for MKP - metalised plastic film - which is all good but you could go one better and simply go straight to metal foil (ie FKP) instead. Again this would need design work to get the best out of a single triode. Also 30uF is quite small as this impacts the frequency response as a high pass filter so it would be interesting to see a measured frequency response. The same voltage rating and capacitance but with better current handling. * buy two dark voices and *with design work* combine the two into a bi-monoblock this then allows the tubes to be paralleled for a single channel.Īs carageae has said - what headphones are you using with it? Low impedance/high impedance?Īlso were the parts provided? You could change the 10uF caps to something better (I don't mean more expensive). * low noise voltage regulation (likely to need a different power transformer due to the voltage drop) * move power switching to the back so the power is not routed up next to the preamp section (this could be a power relay operated by a simple transistor with the transistor controlled by a low power DC switch on the front instead). * Constant Current Source (CCS) to flatten the operating line. You can also do that for the entire supply - but again, it would need design work to ensure you understand if the power transformer could handle it. * more capacitance on the LPF if it reduces the cutoff point (very careful of inrush current which will damage the transformer). * change caps to a choke+caps (essentially changing from the bi-directional CR low pass filter) * frequency response with your chosen headphones?īig filter caps in there as a low pass filter protecting the front end 6SN7 for noise - options here are
Darkvoice 336se otl headphone amp beyer t1 install#
Other than tube rolling - unless you know of any real juicy tubes to install - suggest whatever comes to mind for further improvement of stock unit.ĭarkvoice and Crack Mods | Super Best Audio Friendsĭarkvoice 336i & 336SE Tuberolling PartII | | Headphone Reviews and Discussion - įirst I'm going to ask the obvious existential question - what is better? colors have different doping materials and diff. Have there been comments on the brand or type of LED to use? I've heard that color can make a diff. This may have worsened the sound? Not sure!
Darkvoice 336se otl headphone amp beyer t1 mod#
Next, I did the LED mod (replacing the 1k R). I think that made a positive improvement. I did the Preamp Output ground (remove) mod. I have not made such comparisons, however.Ī few mods have been suggested for the 336se. It can roughly be compared to Bottlehead Crack, the latter being better built and pricier. FYI, the Darkvoice 336se is a popular tube headphone amp from China.
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