Rogue Audio Stereo 100 power amplifier Specifications

Sidebar 1: Specifications

Description: Stereo, push-pull, class-AB1, tubed power amplifier with transformer-coupled inputs. Tube complement: two 12AX7 (voltage amplifier), two 12AU7 (driver), four KT120 (output). Inputs: 1 pair single-ended (RCA), 1 pair balanced (XLR). Outputs: 2 pairs (4 and 8 ohms) five-way speaker binding posts per channel. Power output: 100Wpc into 8 ohms (Ultralinear mode, 20dBW), 60Wpc into 8 ohms (Triode mode, 17.8dBW). Frequency response: 5Hz–50kHz, ±1dB. Input impedance: 75k ohms. Sensitivity: 1V RMS.
Dimensions: 18" (455mm) W by 7" (180mm) H by 17" (400mm) D. Weight: 60 lb (27.2kg).
Finish: Black.
Serial number of unit reviewed: Stereo 100-0706.
Price: $3495. Approximate number of dealers: approximately 70. Warranty: 3 years, limited (tubes, 6 months).
Manufacturer: Rogue Audio Inc., PO Box 1076, Brodheadsville, PA 18322. Tel: (570) 992-9901. Web:

Rogue Audio Inc.
PO Box 1076
Brodheadsville, PA 18322
(570) 992-9901

Bogolu Haranath's picture

Another winner from Rogue Audio ($3,500) ......... Congratulations :-) ..........

Bogolu Haranath's picture

Pair this amp with Rogue RH-5 pre-amp/headphone amp ($2,500, Stereophile Class-A) ......... We have not only a great amp and pre-amp combo, we can also have a great headphone amp ........ Now, that can be a great "desert island" system :-) ..............

Bogolu Haranath's picture

The interior of this amp looks a whole lot better than the $55,000 Constellation audio amp ....... This beauty is more than skin deep :-) .........

sfrogers's picture

Mark Sandman played bass. Dana Colley played sax.

Herb Reichert's picture

my screwup - thanks for pointing that out


christophervalle's picture

...continuously for over 30 years."

Perhaps more amazing, they surely suffered through numerous power outages of varying durations and degrees of abruptness, and simply came back on.

grantray's picture

The early Mac amps don't have power switches. They were designed to either be run through the preamps like the C8 or C20, or be fed continual power like refrigerators.

MonicaHunsinger's picture

God, this amplifier is so cool! I remember I've found lots of them and had no idea which one to choose. Actually, this one is such a thing! I mean finally I've found exactly what I need! To thanks you, I'd like to tell about one essay writing service. You can read more to learn something about it. It always helps me with all my college troubles, so I hope it's gonna be useful for you too!

funambulistic's picture


JohnG's picture

"Monica Hunsinger":

Please don't pollute this environment with ads for fraudulent term-paper-writing services.

doak's picture Mark O'Brien and the rest of the folk at Rogue Audio.
This review along with the pic of the ST 100's innards tell the story.
Their Stereo 100 is a HUGE amount of super-high quality amp for the bucks.
They just keep on whacking them out of the park.

avanti1960's picture

Rogue Audio RP5 preamp, Sony HAP-Z1ES digital player feeding Joseph Audio Pulsar speakers. This was ~ 3 years ago.
It is still quite literally the best sounding system these well traveled ears have heard. Absolute magic. Well done Rogue Audio and Stereophile!

tonykaz's picture

Rogue is made by people that answer the dam phone and sleep in Pennsylvania.

They seem to make nice Audio Gear and support their Customers.

They're able to hold on to Dealers for many years.

Looks, to me, like a worthy Company.

Thanks for taking the time on this one.

Tony in Michigan

ps. they even make an Audiophile Class D for Future thinking Solar Power People.

frankpic's picture

Great article - I have owned this amp for close to a year now. With all of the very expensive amplifier choices out there I am thankful that Rogue Audio considers price as a key factor. This amplifier is so good and competes well with amplifiers costing so much more. What a deal that flies in the face of escalating audiophile prices. The amp is built very well, dead quiet, delicate and powerful with wide soundstage, 3-D imaging and most importantly it conveys music with the body and size of the recording.

Bogolu Haranath's picture

Herb should be reviewing 'modern take' JBL L-100 speakers ($4,000) ASAP, to go with this amp :-) ............

Herb Reichert's picture

to the Harman store to audition the L-100s now......


Doctor Fine's picture

This is getting weird.
First I complained five years ago to Mikey that the Technics direct drive turntables were being deliberately ignored...and NOW Herb says the same thing about direct drive being (wow-finally!) a GOOD thing.
Then I found BBC monitors and specifically Harbeth Monitor 30s.
So did HERB.
Then I bought a stereo 100 watt Rogue amp (Cronus Magnum II).
So did Herb.
Are you guys FOLLOWING me?
Just weird.
By the way Herb your writing is more entertaining than a monkey driving a Ferrari.
Take that anyway you want.
I meant it as a compliment.
Great review.

Herb Reichert's picture

When JA posted my first Stereophile review, a reader commented, "Oh great, you finally found a worse writer than Cory Greenberg!" I was very flattered. Likewise with your compliment.

Thank you for taking the time to watch me try to reach the clutch peddle.

happy 2019