There's a common belief in the audiophile market that a component system is always superior to integrated solutions. Separating the amplifier into a power amplifier and preamp, moving the digital-to-analog converter into a separate enclosure, and adding a network transport (streamer) responsible only for transmitting the digital stream (as well as a local server) certainly makes sense. Interference and interference will be significantly reduced due to the independent enclosures of the devices, and sound quality will improve thanks to their own power supplies – these solutions have many advantages. But we mustn't forget the cost of multi-component systems (and the additional cabling required), and the fact that many audiophiles don't want to build multi-tiered equipment racks in their rooms. Therefore, the elegant solution of an integrated amplifier with a built-in DAC and streamer (to which you only need to add a couple of speakers) has become a true industry standard. The sound quality of the latest streaming amplifiers has leaped forward - a true revolution has occurred in the segment over the past ten years. So now this class of equipment no longer seems like a compromise between price, convenience, and quality.

The WiiM Amp Pro is an amazing streaming amplifier. This budget-friendly model uses an advanced ESS Sabre ES9038Q2M DAC and Texas Instruments TPA3255 Class D amplification, delivering 60 watts per channel into 8 ohms and 120 watts per channel into 4 ohms. Wireless connectivity is provided by a Wi-Fi 6E module with a dual antenna, and Bluetooth 5.3 is also included. The claimed signal-to-noise ratio of 135 dB (A-weighted) and THD+N of -120 dB are staggering, while seven digital filter options (Apodizing, Brickwall, Corrected Minimum Phase Fast Roll-off, Linear Phase Fast/Slow Roll-off, Minimum Phase Fast/Slow Roll-off), a 10-band graphic equalizer, and a 7-band parametric equalizer belie the device's price. The amplifier sounds neutral and precise, without embellishment – it lacks a little “meat” at the bottom, but according to the overall assessment, the sound clearly goes far beyond the limits of the designated price range.
Model name
Amp Pro
Type
Integrated Amplifier with Streamer
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
2
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
60
Output power (4Ω) (W)
120
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
120
Total Harmonic Distortion + Noise (%)
0.0005
Damping factor
N/A
Dimensions (mm)
217 × 190 × 66
Weight (kg)
2.08
Official link

The NAD C3050 integrated amplifier features a retro design for the renowned brand's 50th anniversary. It quickly became a bestseller, and with the optional MDC2 BluOS-D expansion card, it becomes a true "Swiss Army knife" for audio. Hi-Res streaming with support for over twenty streaming services (Tidal, Qobuz, Amazon Music Ultra HD, Deezer, Spotify Connect, Apple Music, Roon Ready) and Dirac Live Room Correction are the ultimate. Adding a touch of salt and pepper is the HybridDigital UCD (developed by Bruno Putzeys and licensed by NAD) Universal Class D amplification with a closed-loop feedback system that achieves the natural characteristics of traditional Class AB. 2 x 100 watts continuous power into 8 ohms and 135 watts peak, a Texas Instruments PCM5242 differential DAC – everything is good here. The sound is also excellent – exceptionally musical, dense, with a rich timbre.
Model name
C 3050
Type
Inetgrated Amplifier with DAC and Phono
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
1 + 1 (Phono)
Input sensitivity (mV)
540
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
28 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
440
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
46 000
Output power (8Ω) (W)
250
Output power (4Ω) (W)
300
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
20 000
Signal to Noise Ratio (dB)
>95
Total Harmonic Distortion + Noise (%)
<0.03
Damping factor
N/A
Dimensions (mm)
450 x 110 x 355
Weight (kg)
10
Official link

The Marantz Model 40n has a very modern look and uses proven Class AB amplification. The proprietary HDAM (Hyper Dynamic Amplifier Modules) don't use op amps in the amplification stages – only discrete transistors are used, guaranteeing excellent speed and stability. Four output transistors per channel, large copper busbars for extremely short power supply paths, 2 x 70 watts into 8 ohm speakers, and a weight of over 16 kg – all this is impressive. The ESS ES9016 DAC, paired with the HEOS streaming platform, works with Spotify Connect, Tidal, Apple AirPlay 2, Amazon Music, Deezer, and TuneIn. It also features Bluetooth with aptX HD support. The model's warm, velvety sound is captivating – it lacks the ultra-transparency of Class D models, but delivers that engaging musical performance you'll want to listen to again and again.
Model name
MODEL 40n
Type
Premium Integrated Stereo Amplifier with 70w, HDMI ARC and HEOS Built-in
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
4
Input sensitivity (mV)
1600
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
15 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
Yes
Phono MM/MC current-sensing input impedance (Ω)
47 000
Output power (8Ω) (W)
2 x 70
Output power (4Ω) (W)
2 x 100
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
5
Frequency response high +/- 3dB (Hz)
50 000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
0.02%
Damping factor
100
Dimensions (mm)
442 × 130 × 432
Weight (kg)
N/A
Official link

The Cambridge Audio Evo 150 SE streaming integrated amplifier features Class D Hypex NCoreX amplification with improved feedback loops. It delivers a very high output power of 2 x 150W into 8 ohms. Digital-to-analog conversion is implemented using the proven ESS Sabre ES9018K2M chip and is complemented by the StreamMagic Gen 4 streaming platform with support for Spotify, Tidal, Qobuz, Amazon Music, Deezer, Apple AirPlay 2, Chromecast, and Roon Ready. The 6.8-inch color screen on the front panel is the icing on the cake. The Cambridge Audio Evo 150 SE produces a much warmer sound than the company's previous digital models, yet it hasn't lost any speed or bass control.
Model name
EVO 150 SE
Type
Integrated amplifier with DAC and streamer
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
N/A
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 150
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
N/A
Damping factor
N/A
Dimensions (mm)
N/A
Weight (kg)
N/A
Official link

Despite the Hegel H150 integrated amplifier's performance characteristics, which "only" produce 2 x 75W in Class AB, its acoustic control capabilities are far superior to those of its competitors, thanks to Hegel's patented SoundEngine 2 technology, which guarantees a damping factor of 2,000 and can drive loads up to 2 ohms. From the very first chords, this model captures your attention – its exceptionally focused and rapid-fire presentation is captivating. And let's not forget about streaming via Spotify Connect, Tidal Connect, Qobuz Connect, Google Cast, Apple AirPlay, and UPnP.
Model name
H150
Type
N/A
Analog inputs (balanced)
1
Analog inputs (single-ended)
2
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 75
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
5
Frequency response high +/- 3dB (Hz)
100000
Signal to Noise Ratio (dB)
100
Total Harmonic Distortion + Noise (%)
0.01
Damping factor
2000
Dimensions (mm)
430 x 310 x 80
Weight (kg)
9.5
Official link

The HiFi Rose RS520 looks exceptionally impressive – like something from the future. The 12.6-inch touchscreen on the front panel is a true ergonomic marvel. Under the hood are also technologies of tomorrow – Class AD with GaN FET (gallium nitride field-effect transistors). GaN transistors switch approximately ten times faster than silicon MOSFETs, ensuring exceptionally high sound quality. The claimed power is 250 watts per channel into 8 ohms or 4 ohms (fully load-tolerant), and the output impedance is negligible – 0.05 ohms. The flagship ESS Sabre ES9038PRO chip, Android-based Rose OS with all major streaming clients, and up to 8 TB of native local storage – there's nothing more to dream about in terms of functionality. The HiFi Rose RS520's sound is one of the most transparent and responsive in its class, with an exceptionally high level of detail.
Model name
RS520
Has internal DAC
N/A
DSD compatability
Yes
Parameters
up to 32 bit / 768 kHz and DSD512
DSP processing
N/A
Frequency response low +/- 3dB (Hz)
10
Frequency response high +/- 3dB (Hz)
83 000
Gain (dBu)
N/A
Input Impedance (balanced) (Ω)
N/A
Input Impedance (single-ended) (Ω)
100 000
Output Impedance (balanced) (Ω)
N/A
Output Impedance (single-ended) (Ω)
0,005
Analog outputs level (balanced) (V)
N/A
Analog outputs level (single-ended) (V)
N/A
Signal to Noise Ratio (dB)
124
Total Harmonic Distortion + Noise (% at 22 kHz)
0.007
Dimensions (mm)
346 × 328 × 127
Weight (kg)
8.1
Official link

The Arcam SA45 streaming integrated amplifier uses Class-G amplification (it operates in Class-A at low levels, and switches to AB at higher levels) and features a fully balanced signal path. The ESS Hyperstream IV digital-to-analog conversion is complemented by a Dirac Live Room Correction module with a measurement microphone included, allowing the model's sound to be adapted even to challenging rooms. Two 180-watt amplifiers at 8 ohms and up to 300 watts per channel at 4 ohms drive virtually any speaker. Streaming options include Apple AirPlay 2, Google Cast, Spotify Connect, Tidal Connect, and Qobuz Connect. Bluetooth 5.4 supports Snapdragon Sound, LE Audio, Auracast, and AAC. And finally, the 8.8-inch display is simply wow. The Arcam SA45's sound is incomparable - warm, rich, and fluid, yet retaining excellent dynamic characteristics, a true steel fist in a velvet glove.
Model name
SA45
Type
integrated amp with DAC and streamer
Analog inputs (balanced)
1
Analog inputs (single-ended)
3 + 2 (phono)
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 x 180
Output power (4Ω) (W)
2 x 300
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
20 000
Signal to Noise Ratio (dB)
106
Total Harmonic Distortion + Noise (%)
80 + 0.002
Damping factor
N/A
Dimensions (mm)
432 x 390 x 140
Weight (kg)
17
Official link

The Naim Uniti Nova uses traditional Class-AB amplification and delivers 2 x 80 watts into 8 ohms. There's also a Uniti Nova Power Edition with 180 watts, but that unit uses Class-D amplification. The Naim Uniti Nova, while less powerful, sounds exceptionally rhythmic and lively, making your feet dance. The sheer width of the stage and the bass punch are simply captivating. The network platform is Naim's own, supporting Apple AirPlay 2, Chromecast, Spotify Connect, Tidal Connect, and Qobuz Connect.
Model name
UNITI NOVA
Type
Integrated Amplifier with DAC and Streamer
Analog inputs (balanced)
N/A
Analog inputs (single-ended)
2
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
D/A conversion
N/A
Phono MM/MC current-sensing input impedance (Ω)
N/A
Output power (8Ω) (W)
2 х 80
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
N/A
Frequency response high +/- 3dB (Hz)
N/A
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (%)
N/A
Damping factor
N/A
Dimensions (mm)
265 × 95 × 432
Weight (kg)
13
Official link
The eight streaming amplifiers reviewed are optimal modern choices in the price range from $399 to $9,999. Each device is a true gem in its price range, so when choosing a device, you only need to set your budget. The key here is to match the cost of the amplifier in the system to the level of the speakers. Roughly speaking, the WiiM Amp Pro ($399) is an excellent partner for the KEF Q150 ($300) or Wharfedale Diamond 12.1 ($350) speakers. The NAD C 3050 works great with the Dynaudio Emit 20 ($1,500) or Q Acoustics 5040 ($1,800). The Marantz Model 40n works well with the KEF LS50 Meta ($1,800) or Bowers & Wilkins 705 S3 ($3,000), and so on.
Class AB or Class D? Ten years ago, Class D was a compromise solution for audio equipment. Today, the capabilities of such circuits (Hypex NCoreX in the Cambridge Audio Evo 150 SE, GaN FET Class AD in the HiFi Rose RS520, HybridDigital UcD in the NAD C 3050) have advanced significantly and compete on equal terms with classic solutions. So, the choice will depend solely on your tastes. If you want more body in the sound, consider AB; if you want a more transparent and faster sound, consider Class D.
Finally, room correction like Dirac Live is a definite plus for this amplifier, as such a module can mitigate the shortcomings of even complex listening rooms.
If you...
Budget up to $500: WiiM Amp Pro
Need a perfectly balanced option: Marantz Model 40n
Want maximum sound quality and a wealth of features: Arcam SA45