Compared to sub brands Astell&Kern The wind and water of, iriver It can be said that it gradually faded out of everyone's sight. But not long ago, iriver finally brought us new wireless speakers—— LS150 This is a multi-functional wireless speaker with Bluetooth, AirPlay, WiFi and other wireless streaming functions, as well as AUX and FM radio functions. Compared with general Bluetooth speakers, its functions are more abundant.

The LS150 is packed in a long carton with a rendering of the product on the package. The overall style of the package is relatively uniform with the product.

Of course, the most important part in the package is the LS150 host. There are multiple openings for speakers on the front, and a total of five speakers (two high and two low) are facing us. With such a large volume of wireless speakers, it is a luxury configuration.

The LS150 uses a passive radiator to connect the middle and low frequencies. In addition, it also uses the technology of three frequency division. The hardware is really hard.

The accessories in the package are very simple. An AUX cable, an FM antenna and a power adapter are also necessary. The only thing I have to complain about is that the AUX line is too thin. Users who have requirements for sound may need to buy a high-end upgrade line.

The LS150 is designed in white and silver. The design of the whole machine is simple and clean.

There is a status display in the lower left corner of the front. The current operating mode, volume and other information of the body can be displayed through this simple LED display.

There are two aluminum knobs with good texture on the right, and function selection and switch on the left. There are several working modes of Bluetooth, WiFi, FM and AUX. On the right is the volume knob. When the two knobs are turned on, the orange indicator light will be on.

There is the logo of the initiator on the top of the fuselage. This logo can be said to be familiar with the MP3 player market many years ago. Now it has also ushered in a magnificent turn through Astell&Kern.

There are touch function keys on the right, especially the WPS scanning key and NFC function.

Although it has the brand of iriver, LS150 still has a heart of "AK". Astell&Kern is still responsible for its tuning and audio technology. For many loyal users, this logo is a guarantee of confidence in sound quality.

Since the LS150 mainly focuses on wireless audio, the wired audio input is not very rich. There is only one AUX IN 3.5mm interface, and the FM antenna attached in the package is also inserted in this hole. The right side is the 9V 2.5A power interface, from which we can also judge that the power of the whole machine is not high. On the left side of AUX, there is a "magic" interface, a standard USB power output, which may allow the LS150 to act as a mobile phone charger when users need it.

Connect the schematic diagram of FM antenna and power line.

The LS150 can be connected to the mobile phone, which is one of its important extension functions. Download the application of the initiator Live Stream and connect it to the speaker using WiFi. At this time, the mobile phone will act as a "turntable", and the LS150 will complete decoding. It can support up to 24bit/192kHz high-definition sound source, and users who have strict requirements for sound quality will be satisfied. After installing the official application, a sound source aggregation interface will be opened directly, including local sound source, Douban FM iHeartRadio、 Dragonfly FM, QQ music, etc., we can see that this application itself attaches great importance to various online radio stations. In the settings, we can also choose some audio sources we need.

The LS150 nominally supports high standard audio files. We have also carried out a simple test here. The measured normal 16bit/44kHz lossless music (left) and 24bit/96kHz high bit rate music (right) have no problems playing, but the latter may have a short delay at the beginning of playing due to wireless connection.

In terms of sound performance, the style of LS150 is more balanced, and its transparency is much higher than that of ordinary wireless speakers. Due to the optimization and adjustment of the connection between middle and low frequencies in the frequency divider, the problem of unsmooth connection between middle and low frequencies or low frequencies in low frequencies is not the same as that of similar products. Although low frequencies are not of the type with large quantity and sufficient air, they are also satisfactory in terms of texture and elasticity. Surprisingly, the voice performance of the LS150 is quite good, which is suitable for some "drool song" styles that most users like to hear. Of course, due to the unit size and power supply scale, it is difficult for LS150 to be ambitious or listen to large-scale music. However, the initiator can also be regarded as a "master". A mobile phone can connect up to eight LS150s at a time. Of course, it may be rare for local tyrants to play in such a way. It is believed that using two LS150s to form a "2.0" combination with 10 units will significantly improve the overall sound performance.

From this experience, it can be seen that the LS150 is a wireless audio product that can be integrated into the home in terms of shape and function design. The diversified wireless access methods make it very rich in playing methods, and allow users to listen to the voices from local, network, radio and other channels through it. For some users who pursue convenience and a sense of product design, it is indeed a speaker worth putting at home to taste slowly.