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Rowland M925 4-chassis mono amp

It appears that at CES 2013 The long-awaited Rowland M925 4-chassis flagship monoblock may be finally making its North American live debut. A terse one-liner on the Rowland home page implies that M925 will be making music in the Venetian Tower:

"Hear the Aeris DAC, Corus Preamplifier, Model 725, and Model 925. January 8-11. Venetian Tower Suites 29-125 and 29-233.
"

I still have very little information on this amp, except that its styling is patterned on M625 and M725, and that each switch mode mono power supply is housed in a separate mono chassis. I have not heard anything final about power rating.... Probably somewhere Northward of 400W per channel. I will post details as I learn them.

Guido
guido.d.corona
guidocorona
4,298 posts
 
Sorry Roxy, I am confused....Please explain how the quoted line deviates from "terse". Thanks, G.
roxy54's avatar
roxy54
7,661 posts
 
Guidocorona,
Although the definition of terse can be concise, or brief and to the point, in common usage, it implies curt or abrupt, and I don't think the sentence came off that way.
guidocorona
4,298 posts
 
Ah yes, your concern is valid Roxy. A better qualification would be "unadorned", or "to the point". I will contact JRDG and will try to dig out some technical ... adornments *grins!"

Saluti, Guido
guidocorona
4,298 posts
 
I obtained informally the following initial specs for the Rowland M925 from JRDG:

* 430W per channel over 8 Ohms
* 850W per channel over 4 Ohms
* 2400 W regulated DC SMPS per channel with Power Factor Correction (PFC).

I will post further information as soon as I find out more..

Guido
guidocorona
4,298 posts
 
As I thought, the Rowland Model 925 power amplifier has just been released to the North American market. Here is what I have learned this far about this new amplifier:

• MODEL 925 – 4-chassis monoblock power amp: 2 audio chassis and 2 power supply chassis
• OUTPUT POWER: 430 watts @ 8 ohms/850 watts @ 4 ohms per channel
• Power supply: 2400 W regulated DC SMPS per channel, with Active Power Factor Correction (PFC)
• FREQUENCY RESPONSE: 5 Hz - 50 kHz
• INPUT IMPEDANCE: 40k ohms
• THD + NOISE: 0.004%, 20 Hz- 20 kHz
• DAMPING FACTOR: > 1000, 20 Hz - 20 kHz
• OVERALL GAIN: Switchable 26/32 dB
• Combined AMPLIFIER chassis & POWER SUPPLY chassis WEIGHT: 160.4 lb / 73 kg (per channel)
• TOTAL DIMENSIONS (H/W/D): 16.5" x 15.5" x 16.25" (per channel) 419mm x 394mm x 413mm
• List price: $58K USD.

Thank goodness that each uber-hefty 160 Lbs per channel are split between an audio chassis and its power supply chassis!
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