I haven't introduced you to combo for a long time. The reason is that many audio brands are now focusing on Bluetooth audio. As the originator of desktop audio, the living space of two-in-one has been squeezed, but this does not mean that two-in-one has lost its appeal. The application scenarios of combined audio have been very extensive. We can install it at the bedside, in the study and even in the kitchen. Many small cafes or shops will also install a stereo as background music.

An important feature of two-in-one is that there is an All in one host, which integrates modules such as music playing, decoding and power amplification. This host can play CDs, connect mobile phones and listen to FM radio. The combination is equipped with a pair of small bookshelf speakers, and the comprehensive function can meet almost all kinds of music listening needs.

Yamaha MCR-B370, the protagonist of this paper, is such an excellent combination sound. There are CD turntables, integrated amplifiers, speakers, and the most advanced Bluetooth wireless connection, so it's no problem to listen to music with your mobile phone.

Compared with many integrated Bluetooth speakers on the market, the speaker and the host of such products are usually integrated in a box, and the sound emitted is basically limited to one point. Compared with 2-in-1, 2-in-1 with two small speakers has better left and right channel positioning and can present real stereo playback. Yamaha's combo is equipped with stereo speakers, made of wood, and the warmth and authenticity of the sound are better than ordinary Bluetooth speakers.

Important characteristics

Equipment parameters

CRX-B370

NS-BP 1 12

Yamaha, as a big brand of musical instruments, has been deeply involved in audio products for decades, and has launched many brilliant products in the fields of HiFi and home theater. As early as ten years ago, it has been put into the research and development of Soundbar echo wall, which belongs to the originator level among many audio products, so I won't introduce it here. In the field of HiFi, Yamaha has launched two top models, C-5000 and M-5000, which are also equipped with NS-5000 top monitor speakers. There are many audio products in the professional field, and there are quite mature product development experiences. Therefore, Yamaha's combo sound is also worth looking forward to.

At present, Yamaha's audio combinations listed in China include MCR-B270/B370, MCR-B020 and other models, in which B270 and B370 use the same host, and the standard speakers in MCR-B370 combination have a piano paint surface and adopt the same paint painting process as Yamaha's piano. MCR-B370 consists of the host CRX-B370 and NS-BP 1 12 speakers. CRX-B370 integrates CD turntable, which is very friendly for CD collectors.

Yamaha MCR-B370' s full-function remote controller is also essential for a set of stereo. In addition to on-off control, volume control and CD playback control, the sense of adjustment of treble and bass can also be realized on the remote control.

CRX-B370 adopts Class D amplifier circuit, and the original specification clearly indicates that each channel can output 20 watts of power under a load of six ohms. CRX-B370 has 3.5mm analog input, a set of USB terminals and a set of 6.3mm headphone jacks on the front panel, a set of optical fiber input and a set of subwoofer output on the back panel, and of course, wireless Bluetooth (version 4.2), which is quite complete. CRX-B370 adopts Burr-Brown's PCM 178 1 DAC chip, which supports high-resolution music of 24bit/ 192kHz at the highest. We can put high-resolution music on a USB flash drive and then insert it into the host computer to play.

The optical fiber behind the host can be used to cooperate with TV or other equipment with digital optical fiber output to further improve the sound quality. The output of the subwoofer can be connected with the active subwoofer to form a 2. 1 channel system, which makes the whole frequency domain more complete. The original factory has also made great efforts in the appearance of CRX-B370. The front panel is made of high-grade aluminum and looks simple and elegant after fine hair treatment.

The NS-BP 1 12 loudspeaker matched with CRX-B370 adopts the standard 2-channel 2-unit design, and the cabinet adopts the bass reflex design. The tweeter unit used is a 2.5cm soft hemisphere tweeter unit, and the bass unit is a 1 1cm cone basin bass unit. It can be seen from the appearance that NS-BP 1658.

NS-BP 1 12 adopts Yamaha's exclusive VCCS vibration control speaker structure technology, that is, composite materials are placed inside the box, which increases the structural strength of the box, reduces the redundant vibration of the box, further reduces the sound dyeing and makes the sound cleaner.

After unpacking, the connection of MCR-B270 is not complicated. Just plug in the power supply and connect the speaker cable, which is convenient and easy to use. In use, we can quickly turn on the Bluetooth connection mode, and quickly connect through the search and pairing of mobile phones. You can play all kinds of music on your mobile phone right away. The optical fiber interface on the back can be used to connect the TV. This is a digital signal transmission interface, which can have a very clear and low distortion music transmission effect. We strongly recommend it. Regarding CD playback, for players who have collected many CD records, this player can clearly restore the high-definition music in the CD, and the reading of the CD is very stable, even some old records can be read and played smoothly.

If the user has other players (such as portable players with headphones or higher-level CD discs and vinyl players, etc. ), it is suggested to connect through optical fiber or USB to give full play to the high resolution advantage of CRX-B370 built-in DAC.

In the placement of two speakers, it is not recommended to pull it too wide. The distance between the two speakers should be kept within 1 m, so that the sound density can be guaranteed and the sense of positioning and surround of the sound can be better displayed. Of course, the listening position should not be too far away.

For friends who often listen to electronic music, it is a good choice to configure an extra ultra-low speaker. In addition to adjusting the low-frequency volume through the remote control, we can also put the two main speakers close to the back wall in time to increase the low-frequency response. The output power of this machine is only 20 watts, so it is not recommended to listen too loudly. If the volume is moderate, it is a good choice for people to enjoy music.