A near-field pair in a small room · review
Sold as a pair, unlike much of this category: 2-way bass-reflex monitors with a 4.5-inch woofer, a stated 60 Hz – 22 kHz response, 102 dB SPL maximum, and ROOM CONTROL and HIGH TRIM switches on the back.
What it amounts to The small-room monitor: a published response, room compensation on the back, and both speakers in one box.
Studio monitors are usually sold one at a time and photographed in pairs, which is the origin of a great many disappointed deliveries. Yamaha states that the HS4 is a stereo pair, and that alone is worth saying first.
The specification is published in full: a 4.5-inch woofer and 1-inch dome tweeter, 60 Hz to 22 kHz, 102 dB SPL maximum, Class-D amplification in MDF cabinets. Sixty hertz is where the low end stops, which is honest for a woofer this size and worth knowing before judging a mix’s bass on them.
The back panel is where the value is. ROOM CONTROL and HIGH TRIM let you compensate for a room you cannot treat — most desks sit against a wall, and a wall adds low end that is not in the recording.
The connections cover everything: XLR/TRS combo for an interface, RCA and a stereo mini jack for a laptop or a phone. Cables and anti-slip pads are in the box.
| Sold as | A stereo pair |
|---|---|
| Design | 2-way, bass reflex, Class-D amplification |
| Drivers | 4.5" woofer, 1" dome tweeter |
| Frequency response | 60 Hz – 22 kHz (Yamaha states) |
| Maximum level | 102 dB SPL |
| Inputs | XLR/TRS combo, RCA, stereo mini |
| Room controls | ROOM CONTROL and HIGH TRIM switches |
| In the box | Stereo mini to RCA cable, speaker cable, anti-slip pads, manual |
| Amazon reference | B0CNSXJ4QK (identical on 6 markets) |
| EAN | 4957812690065 |
It attenuates low frequencies to compensate for the boost a wall or a corner adds. In a small room with the desk against a wall — which is most home studios — it is the difference between accurate low end and a permanent bass hump.
Yamaha states a pair for this model. That is not the norm: professional monitors are conventionally sold one at a time, using the same photograph, and it catches buyers out constantly.
8.4/ 10
The small-room monitor: a published response, room compensation on the back, and both speakers in one box.
Shown because the accessory names this instrument itself.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on August 18, 2026.
A small room where the speakers have to sit near a wall.
Specifications: the manufacturer sheet for musical instruments and gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
Pair · 4.5" Kevlar woofer · rear 6.3/3.5/RCA · front aux
A bi-amplified desktop pair with 4.5-inch black Kevlar woofers and silk dome tweeters, in MDF cabinets, with three rear input types, front-panel aux and rear high/low EQ.
Best for: A first pair of desktop monitors where nothing else should have to be bought.
≈ $140
3 in drivers · 50 W · headphone jack that mutes the speakers · 1/4 in, 1/8 in and RCA
The only pair here whose front headphone socket switches the speakers off by itself — on 3-inch drivers, 50 watts, three input types and cables in the box.
Best for: A desk where the headphones and the speakers share one source and get swapped a dozen times a day.
Pair · 5" woofer · 100 W · Bluetooth · headphone out
The largest monitors in this group: 5-inch woofers, 1-inch tweeters, 100 W total, with RCA and 6.35 mm (0.25 in) TRS inputs, a headphone output and Bluetooth streaming.
Best for: A room with a meter or so behind the speakers, doing both music production and listening.
