Down The Rabbit Hole of ClassD

[Rbertalotto]

The Grey Santa delivered a package to me this morning. The latest and supposed, greatest new amplifier technology. GaN SET Class D....I set it up on my electronics test bench just to be sure it works before I connect it to my LS50 Metas.....First impression, one word..."BALLS!"...This think has some serious power! I'm playing it through Sony CCS speakers, $100 a pair that all the YouTubers are going crazy over. I never heard them have so much PUNCH! Serious "Attack".......At $750, this just might be the PERFECT amplifier for hard to drive speakers......We shall see!

 

[Todd Anderson]

Very cool. It looks so small! What are the power specs on that mini beast?

 

[Rbertalotto]

Specifications:

Model	Mini GaN 5 Gallium Nitride Class D Amplifier
Number Of Channels	2 Channel Stereo Power Amplifier
RMS Power Per Channel 8 Ohms	200 WRMS Continuous (400W Peak)
RMS Power Per Channel 4 Ohms	300 WRMS Continuous (500W Peak)
Power Supply	Bipolar LLC Resonant Converter
Input Sensitivity	2 VRMS
Total Harmonic Distortion (THD+N)	THD+N 0.006% 8 Ω, 1 kHz, 1 W Power
Frequency Response	20 Hz – 20 kHz, ±0.5 dB
Input Impedance RCA	100K
Input Impedance XLR	100K
Voltage Gain	Adjustable - 26dB, 28dB, and 32dB
SNR/DNR	108 dB (Unweighted), 110 dB (A-weighted)
Power Requirements	90VAC or 264VAC
Dimensions (W x D x H) Inches	9.75" X 7.5" X 2"
Dimensions (W x D x H) Millimeters	248 X 178 X 51
Product Weight (lbs/kg)	5/2.3
Shipping Weight (lbs/kg)	7/3.2
Place of Manufacture	USA
Manufacturer	Premium Audio Products

 

[Todd Anderson]

That’s insane… there’s a lot of power packed into a small box! I’m guessing it stays cool during operation?

 

[Rbertalotto]

It doesnt even grt warm playing my Magnepan LRS at crazy volumes. I had no idea the Magnepans could play that loud!

 

[w_sizer]

Congratulations! Based on reviews I’ve seen (e.g., audiosciencereview.com, audioholics.com, etc), well executed Class D designs are fast becoming the best available (assuming they’re not already there), due to their high power output, efficiency, and low distortion levels. I hope you enjoy it!

 

[Todd Anderson]

It doesnt even grt warm playing my Magnepan LRS at crazy volumes. I had no idea the Magnepans could play that loud!

That's sweet! The form factor is incredible!