Description: Solid state, mono power amplifier. Inputs: 1 balanced (XLR), 1 single-ended (RCA). Outputs: 2 pair custom binding posts. Input impedance, balanced (XLR): 100k ohms; single-ended (RCA): 12.5k ohms. Output impedance: not specified. Voltage gain, balanced (XLR): 30dB; unbalanced (RCA): 34dB. Frequency response: 20Hz–20kHz, –0.15dB; 10Hz–100kHz, –0.5dB. Input sensitivity, balanced (XLR): 3V; unbalanced (RCA): 1.85V. THD: <0.018%. Damping factor: 200. Speaker impedance: 4 ohms, minimum. S/N ratio (A-weighted): 120dB. Continuous output power: 1080W into 8 ohms (30.3dBW), 1800W into 4 ohms (29.6dBW). Power consumption: 1200W. Standby power consumption: Normal: <0.5W, Network wakeup: <2W.
Dimensions: 19" (485mm) W × 9.375" (238mm) H × 18.25" (465mm) D. Weight: 130.3lb (59.1kg) each.
Finish: Gray anodized aluminum with black acrylic front panel.
Serial numbers of units reviewed: 256-9441092, 256-9511006. Designed in Japan, built in China.
Price: $13,999/pair. Approximate number of US dealers: 14. Warranty: 5 years parts and labor.
Manufacturer: The Rotel Co. Ltd., Tokyo, Japan. Web: rotel.com. US distributor: Sumiko, 6655 Wedgwood Rd. N, Suite 115, Maple Grove, MN 55311-2814. Tel: (510) 843-4500. Web: sumikoaudio.net.
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COMMENTS
It seems they punch above their weight, so to speak!
Not in my budget, but if they were, I'd be racing out the hear them.
They seem like a cool benchmark product, did they go back or are they sticking around for more comparisons?
Really, a pretty exciting product.
Added: JA1's measurement section was also pretty darned interesting. Just don't let Golden Sound get hold of these. ;-D
... the measured output power at clipping was 1322W @ 8Ω and 2250W @ 4Ω.
They also made instantaneous peak power measurements which resulted in outputs of 1640W @ 8Ω, 3130W @ 4Ω, 1790W @ 2Ω, 960W @ 1Ω.
https://www.hifinews.com/content/rotel-michi-m8-mono-power-ampiifier-lab-report
They also tested the S5 two-channel version ($7K) and the measured output power at clipping was 670W @ 8Ω and 1170W @ 4Ω.
Instantaneous peak power measurements were 691W @ 8Ω, 1390W @ 4Ω, 1780W @ 2Ω, 902W @ 1Ω.
https://www.hifinews.com/content/rotel-michi-p5s5-prepower-amplifier-lab-report
"Also on the back panel is this warning:" "Speaker impedance 4 ohm minimum." Uh oh: According to John Atkinson's measurements, the Wilson XVX "remains between 2 and 4 ohms for almost the entire audioband," with a minimum value of 1.5 ohms between 310Hz and 340Hz. He concludes, "The Chronosonic XVX should be used with amplifiers ... that don't have problems driving loads of 2 ohms and lower."
Doesn't mean they will sound crap, just won't get the "very best" out of them at those impedances, like say a Gryphone Antillion will. Which supposedly doubles down to 1ohm.
https://gryphon-audio.dk/wp-content/uploads/2020/05/Tech.-Spec.-ALL-Prod...
Cheers George
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