DarTzeel’s new direction

Thanks for this post skinzy! Sweeping generalizations about individuals of any economic status are the indication of a small mind.  

I’ve played with dartzeel’s amp circuitry, and assessed overall design.. they are trying to replicate tube sound, by increasing output impedance and create sophisticated fb loop freq./phase characteristics in SS ckt. I give Dartzeel credit of 50Ohm pre/amp interconnects design, which has sense to eliminate reflections and affecting sound resonances in longer than ~3ft cables. 

Few years ago I red Geneva Switzerland Audiophile direct Accuphase A70 comparison to DartZeel NHB.. Well, Dartzeel lost!. I confirmed in my experiments that replicating tube sound by SS ckt by Dartzeel has some disadvantages, and can be used only for flatter Z/freq. speakers, while Accuphase can drive speakers from 1Ohm to 16Ohms without affecting sound much.

Using medium impedance (50 to 300 ohms) for line-level interconnects is a good idea, although not suitable for modern studio practice. And medium impedance for speaker outputs (1 to 2 ohms) is going to depend on the complexity of the speaker crossover ... simpler crossovers will tolerate it, more complex crossovers will not.

@lynn_olson for ideal non reflective response cable characteristic impedance must match driver and receiver impedances.. we have to choices for coax 50/75Ohms. problem with RCA is a connecting low output impedance drivers (pre/phono/cd etc) to high (47kOhm/10pF) receiver, which generates reflections. Cable of 10ft or longer in such condition has sonic signature, such as harsh sound etc. matching source/cable/receiver impedance eliminates that.

In fairness to the look of Dartzeel they are in line with other high end Swiss aesthetics .Classic gold Rolex watches for example.