The Stereo 100 is a stereo power amplifier by Rogue Audio that delivers 100 watts x 2 channels into 8 ohms. It was released in 2016. It is a 2-channel design using a Class A/B output stage. The Stereo 100 is an all-valve design, running 4x KT88 output, 2x 12AU7, 2x 12AX7 input. Note that the tubes carry their own warranty of 6 months, separate from the amplifier itself. Speakers connect via binding posts. Its output transformer offers 4 / 8 ohm taps, and matching the tap to your speaker's impedance matters more here than a minimum-load figure would on a solid-state amplifier. The Rogue Audio Stereo 100 has an MSRP of $4,195.
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The Rogue Audio Stereo 100 is rated at 100 watts RMS into 8-ohms.
Here are the main highlights of its performance specs:
- 100 watts into 8-ohms
- 4 / 8 ohm output transformer taps - match the tap to your speaker's impedance
How loud will 100 watts actually play in your room? →
Which speakers suit the Rogue Audio Stereo 100?
100 W into 8 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Rogue Audio Stereo 100 is rated at 100 watts into 8 ohms, which puts it in our 91 to 120 watts band. The next band up is 121 to 180 watts, which is worth about 1.5dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the 61 to 90 watts band and better speakers.
When pairing the Rogue Audio Stereo 100 with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
What size of room is the Rogue Audio Stereo 100 Amplifier good for?
An essential deciding factor is the size of the room in which you intend to employ the Rogue Audio Stereo 100 amplifier. Here, taking into account its maximum power parameters, we analyzed its applicability to various size environments:
| Listening Environment |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
Inputs and Outputs
Besides the performance specs of the Rogue Audio Stereo 100, the next important feature set that you have to evaluate is the input and output selections that it offers.
Rogue Audio Stereo 100 has total of 2 Analog inputs .
Inputs
- Total Number of Analog Inputs: 2
Outputs
Bluetooth Connectivity
Rogue Audio Stereo 100 doesn't have bluetooth connectivity feature. In order to stream your music via bluetooth, the easiest way is to connect an external bluetooth receiver to your Rogue Audio Stereo 100. Two bluetooth receivers that we recommend are the
iFi Zen Blue V2 and the
Audioengine B1.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
Phono Input
Rogue Audio Stereo 100 doesn't have a phono input so in order to play your vinyl albums, Rogue Audio Stereo 100 has to be paired with a Phono Preamp that is MM (Moving Magnet) or/and MC (Moving COil) depending on your cartridge type.
Balanced connections
Rogue Audio Stereo 100 has a balanced XLR input. A balanced cable carries the signal twice, on two conductors of opposite polarity. Interference picked up along the way lands on both equally and cancels when the two are recombined at the far end, so the longer the cable run and the noisier the surroundings, the more the connection is worth. Whether a balanced connection also yields more power depends on how the amplifier is built inside - some are balanced end to end, others convert to single-ended internally and deliver the same power either way, so it is worth reading the maker's own wording rather than assuming.
Rogue Audio Stereo 100 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓100 watts per channel into 8 ohms.
- ✓A valve design running 4x KT88, which is the point of buying one.
- ✓Balanced XLR inputs, worth having on a long cable run.
- ✓Made in USA.
- ✗Valves are consumables: they need replacing periodically, and often biasing, which a solid-state amplifier never asks of you.
- ✗A power amplifier has no volume control and no input selection - it needs a preamplifier, or a source with a variable output, in front of it.
Rogue Audio Stereo 100 External Dimensions and Weight
Rogue Audio Stereo 100 has external dimensions of (H x W x D) .
- Width: mm (")
- Height: mm (")
- Depth: mm (")
- Weight: —
- Base Surface Area: ~cm2 / 0.0inch2
- Volume: ~0.0 liter / 0.0 gallon
Available colors
Rogue Audio Stereo 100 is available in Black and Silver color options.
Warranty
3 Years of parts warranty and of labor warranty is generally provided for the Rogue Audio Stereo 100 by the manufacturer.
| General |
| Brand |
Rogue Audio |
| Full Model Name |
Rogue Audio Stereo 100 |
| Release Date |
2016 |
| Amplifier Type |
Power Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class A/B |
| Amplifier Technology |
Tube |
| Tubes |
| Output Tubes | 4x KT88 |
| Input and Driver Tubes | 2x 12AU7, 2x 12AX7 |
| Total Tube Count | 8 |
| Topology | Push-pull |
| Output Transformer Taps | 4 / 8 ohm |
| Tube Warranty | 6 months |
| Performance |
| Watts RMS per Channel into 8-ohms |
100 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
N/A |
| Frequency Bandwidth |
|
| THD |
|
| Minimum Impedance |
|
| Signal to Noise Ratio |
N/A |
| Digital Music |
| Built-in DAC |
No |
| Bluetooth |
No |
| WiFi |
No |
| CONNECTIONS |
| Total Analog Inputs |
2 |
| Phono Input |
No |
| Headphone Output |
No |
| Removable Power Cord |
|
| Speaker Connectors |
Binding posts |
| PHYSICAL SPECS |
| Height |
mm (") |
| Width |
mm (") |
| Depth |
mm (") |
| Weight |
— |
| Available Colors |
Black,Silver |
| OTHER |
| Parts Warranty |
3 Years |
| Labor Warranty |
|
How much power does the Rogue Audio Stereo 100 have?
The Rogue Audio Stereo 100 delivers 100 watts x 2 channels into 8 ohms.
Does the Rogue Audio Stereo 100 use vacuum tubes?
Yes. The Rogue Audio Stereo 100 is an all-valve amplifier: vacuum tubes do the amplifying from input to output. It runs 4x KT88 output, 2x 12AU7, 2x 12AX7 input.
How long do the tubes in the Rogue Audio Stereo 100 last?
Output valves are a consumable. In normal domestic use a set lasts somewhere between about 2,000 and 5,000 hours - a few years for most people - and they degrade gradually rather than failing outright. Input and driver valves last far longer, often the life of the amplifier. Note that the tubes carry their own warranty of 6 months, separate from the amplifier itself - valves are almost never covered by the main parts warranty.
What speakers suit the Rogue Audio Stereo 100?
A valve amplifier is judged on the speaker's sensitivity, not just on watts. At 100 watts, the safe rule of thumb is a speaker of about 88 dB or better - an insensitive speaker will run out of headroom long before the amplifier sounds bad. It also has 4 / 8 ohm output transformer taps. A valve amplifier has no minimum impedance the way a transistor amplifier does; you match the tap to the speaker, and a speaker whose impedance swings a long way will shift the tonal balance slightly because a valve amplifier follows that curve.
What amplifier class is the Rogue Audio Stereo 100?
The Rogue Audio Stereo 100 uses a Class A/B amplifier design. Class A/B is the traditional linear design: it runs warmer and is less efficient than Class D, but it is long valued for its natural, low-distortion sound.
Does the Rogue Audio Stereo 100 have a built-in DAC?
No. The Rogue Audio Stereo 100 has no built-in DAC, so a digital source such as a streamer or CD transport needs its own converter, or you connect it over analogue.
Can I connect a turntable to the Rogue Audio Stereo 100?
No. The Rogue Audio Stereo 100 has no phono input, so a turntable needs an external phono preamp (or a deck with one built in) before it can be connected.
Does the Rogue Audio Stereo 100 have Bluetooth?
No. The Rogue Audio Stereo 100 does not have Bluetooth built in; you would need an external Bluetooth receiver connected to one of its inputs.
Does the Rogue Audio Stereo 100 have a headphone output?
No. The Rogue Audio Stereo 100 does not have a headphone output, so headphone listening needs a separate headphone amplifier.
How much does the Rogue Audio Stereo 100 cost?
The Rogue Audio Stereo 100 has a manufacturer's list price (MSRP) of $4,195.
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