11/29/2023 0 Comments Benchmark ahb2 smps![]() This amp is designed to show good THD+N on the AP test you can't correlate this measurements to the other amps tests in stereophile because the amp has no gain it puts AP generator/analyser in the low distortion field if you loopback AP2 you will see that from 10-500mvRMS has 0.015-0.0004 THD+N if you add 23db gain to that line the amp that has no distorion has to have THDvsPower graph line from 0.003-0.0003 downward slope strait line from 100mW to 30Watts then flatten's out toward 100 Watt on 80kHz bandwidth, if put the analyser in 20kHz bandwidth the line will be lower but still the same shape like thisĪs is measured on a class a amp with lower distortion then AHB2 and when you crank the volume control on the pre-amp to compensate for the low gain you will amplify the noise of the DAC or Phono-pre up to levels of the other amps so low noise in the AHB2 is just red herring if you lower the designed gain of any amp the noise gets lower as well. AC: Kubala-Sosna Emotion.Īccessories: Brickwall Series-Mode 8R15AUD surge suppressor. Kalman Rubinson Speaker: Kubala-Sosna Anticipation & Fascination. Preamplification: Marantz AV8801 preamplifier-processor.Ĭables: Interconnect: AudioQuest Vodka (HDMI), Kubala-Sosna Anticipation (RCA) & Fascination (XLR). AC: AudioQuest NRG-10, JPS Aluminata.Īccessories: Environmental Potentials EP-2450 power conditioner, CyberPower 850PFCLCD AC filter (supplied with Baetis server).ĭigital Sources: Oppo Digital BDP-103 universal BD player Mac mini server running Boot Camped Windows 7, JRiver Media Center miniDSP U-DAC8 DAC with UpTone Audio USB Regen USB repeater. Loudspeakers: Bowers & Wilkins 800 Diamond.Ĭables: Digital: AudioQuest Vodka (HDMI) & Carbon (USB), Black Cat Veloce, van den Hul Flat 180 (HDMI). Power Amplifiers: McIntosh MC303, NAD M22, Parasound Halo A 31. Preamplifier: Audio Research MP1 (multichannel). ![]() "I never get tired of listening with the Benchmarks.Digital Sources: Sony XA-5400ES SACD/CD player, Oppo Digital BDP-105 universal BD player, Baetis XR2 PC-based music server, Benchmark DAC2 HGC and exaSound e28 D/A processors. "The Benchmark performance continues to engage me, and the company gives me confidence in long-term support." A pair of AHB2s are now part of my dedicated summertime amplification for my Sound Lab 545PX loudspeakers." "The highest compliment I can pay a piece of audio equipment is that it has found a home in my system. ![]() I initially scoffed at the Benchmark website claims and did not consider trying them because they did not "cost enough." I thought they might be good for the money but not good enough for me. ![]() "I normally play in a more expensive sandbox. There is the added benefit of a company that has been in business for over 36 years and has a depth of products, and offers an extended warranty." The Class-H Benchmarks give me what I wanted from Class-D amplifiers, but with the musical engagement, I found lacking in Class-D. "Merriam-Webster defines a benchmark as "something that serves as a standard by which others may be measured or judged." This is what the AHB2s have become for me. Praise from a local Sound Lab dealer and a local Sound Lab owner effectively twisted my arm to the point where I yielded to temptation to try the amplifiers. "I was led to Benchmark Media Systems through recommendations from Roger West, the designer of Sound Lab speakers. ![]()
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