The D890 is a multi-zone amplifier by Russound that delivers 45 watts per channel into 8 ohms and 90 watts into 4 ohms, both measured at 1 kHz with ONE ZONE driven rather than all four. Bridged, 180 watts into 8 ohms.. It was released in 2020. It is an 8-channel design using a Class D output stage. The Russound D890 has an MSRP of $999.
Performance Specs
One of the most important factors when deciding on a multi-zone amplifier is its power ratings and compatibility with your speaker's impedance requirements. The Russound D890 is rated at 45 watts RMS into 8-ohms.
Here are the main highlights of its performance specs:
- 45 watts into 8-ohms (20 Hz-20 kHz)
- 90 watts into 4-ohms
- 90dB Signal to Noise Ratio
How loud will 45 watts actually play in your room? →
When pairing the Russound D890 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.
Inputs and Outputs
Besides the performance specs of the Russound D890, the next important feature set that you have to evaluate is the input and output selections that it offers.
Russound D890 has total of 2 Analog inputs .
Russound D890 Back View (Click the image for the larger version)
Inputs
- Total Number of Analog Inputs: 2
Outputs
Zones and channels
The Russound D890 has
8 amplifier channels, which is
4 stereo zones from one chassis. That is the
number to compare across this category, not the watts: a distribution amplifier is
bought to replace 4 separate stereo amplifiers and the rack
space, mains sockets and cabling that go with them.
Most of these will also run each channel as its own mono zone where a room needs a
single speaker, so the stereo figure above is the conservative reading. As the maker
describes it: Yes (4 zones in one chassis).
What the power figure actually means
Russound D890 is rated
45 watts into 8 ohms, but that figure is
not measured with every channel driven. Read the exact conditions
below before comparing it with an amplifier that is. With every zone playing, expect
meaningfully less than 45 watts a channel.
As the manufacturer states it: 45 watts per channel into 8 ohms and 90 watts into 4 ohms, both measured at 1 kHz with ONE ZONE driven rather than all four. Bridged, 180 watts into 8 ohms.
Feeding it
Sources reach the Russound D890 at line
level: 2 analogue line inputs.
Everything in this category is designed to sit in a rack behind the scenes, so volume
and source selection are normally handled per zone rather than from a front panel.
Russound D890 External Dimensions and Weight
Russound D890 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
Official Product Page
Official manufacturer's product page for the Russound D890 Integrated Amplifier can be found below:
Official Product Page for Russound D890
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided for the Russound D890 by the manufacturer.
| General |
| Brand |
Russound |
| Full Model Name |
Russound D890 |
| Release Date |
2020 |
| Amplifier Type |
Multi-Zone Amplifier |
| Number of Channels |
8 |
| Amp Class |
Class D |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
45 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
90 watts |
| Frequency Bandwidth |
20 Hz-20 kHz |
| THD |
|
| Minimum Impedance |
|
| Signal to Noise Ratio |
90 dB |
| Digital Music |
| Built-in DAC |
No |
| Bluetooth |
No |
| WiFi |
No |
| CONNECTIONS |
| Total Analog Inputs |
2 |
| Phono Input |
No |
| Optical Digital Inputs |
No |
| Coaxial Digital Inputs |
No |
| USB Input |
No |
| Headphone Output |
No |
| Removable Power Cord |
|
| PHYSICAL SPECS |
| Height |
mm (") |
| Width |
mm (") |
| Depth |
mm (") |
| Weight |
— |
| OTHER |
| Parts Warranty |
2 Years |
| Labor Warranty |
2 Years |
How much power does the Russound D890 have?
The Russound D890 delivers 45 watts per channel into 8 ohms and 90 watts into 4 ohms, both measured at 1 kHz with ONE ZONE driven rather than all four. Bridged, 180 watts into 8 ohms.. Its output almost doubles into 4 ohms, which points to a strong power supply that can hold its composure with demanding, low-impedance speakers.
Does the Russound D890 use vacuum tubes?
No. The Russound D890 is a solid-state amplifier - there are no vacuum tubes in it.
What amplifier class is the Russound D890?
The Russound D890 uses a Class D amplifier design. Class D is a modern switching design that runs cool and wastes very little energy as heat, which is how makers fit high power into a compact, light chassis.
Does the Russound D890 have a built-in DAC?
No. The Russound D890 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 Russound D890?
No. The Russound D890 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 Russound D890 have Bluetooth?
No. The Russound D890 does not have Bluetooth built in; you would need an external Bluetooth receiver connected to one of its inputs.
Does the Russound D890 have a headphone output?
No. The Russound D890 does not have a headphone output, so headphone listening needs a separate headphone amplifier.
How much does the Russound D890 cost?
The Russound D890 has a manufacturer's list price (MSRP) of $999.
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