Damping Factor Of Dartzeel '108.

[Tabl10s]

Does the '108 have a high damping factor?

 

[DonH50]

Does the '108 have a high damping factor?

Not particularly. The output impedance spec is 0.33-ohm into 8 ohms, a damping factor of about 24. JA measured a high of 0.465 ohms (at 20 kHz) for a damping factor of about 17 (was only ~18 at 20 Hz). You can see his measurements and expected response variation into their loudspeaker test load here: https://www.stereophile.com/content/dartzeel-nhb-108-model-two-power-amplifier-measurements

HTH - Don

 

[Tabl10s]

Thanks.

 

[Amir]

low/zero feedback low damping factor SS/Hybrid amplifiers : Vitus Audio, Dartzeel, CH Precision, Lamm, Robert Koda, Ypsilon, Ayre, Hovland

low/zero feedback low damping factor tube amplifiers :Kondo, Audiopax , Audio Note UK , Border Patrol , Wavelength Audio , Leben , Lamm ML3 , PrimaLuna , Sophia Electric , Wavac , Antique Sound Lab



https://www.hifi.ir/2018/06/output-impedance-negative-feedback/

 

[Zeotrope]

Does anyone know how of the 108’s output is in Class A?

 

[Tabl10s]

20w, per Stereophile review.

 

[Zeotrope]

20w, per Stereophile review.

Thanks but this is for the 108 Model 1. Model 2 is significantly different and has more total power - not sure if the Class A has changed. Hervé has not answered…

 

[Tabl10s]

Thanks but this is for the 108 Model 1. Model 2 is significantly different and has more total power - not sure if the Class A has changed. Hervé has not answered…

I couldn't find anything, either.