This product is a supporting role for this article, this site is the first sun, in order to not cheat gold, or merge it. Dafa's BM10 audio receiver was purely an accident. When O Tao was SONY A7M2,

Dafa sent me a 30-knife official website voucher, and later bought it casually. At that time, Taobao checked the domestic RMB600+. After using the voucher, it probably cost RMB250 more (this figure means nothing). Although this kind of thing Taobao more than 100 a lot, but after all, is the faith of Sony Dafa good believers!

Packaging:

Positive square, top an NFC logo:

back:

The entire device interface, except for a miniUSB power, is the RCA Lotus output. The light is white when waiting for connection, blue flashing when paired, and the light will turn blue when connected, try it with RCA:

The connection line between BM10 and external DAC is from Lotus mouth to junior three-core port, BM10 as input:

In the end, there is no direct speaker connection because the thrust of the BM10 is too explosive, and there is no volume knob, so you can use the input knob to suppress the external DAC.

However, Sony Dafa must have the characteristics of Dafa, and it differs from that of Taobao Agouya, which is:

Support AptX

Supports NFC

Elegant Design + SONY Dafa's Logo Belief

The APTX standard should be the best audio transmission scheme for Bluetooth today, but be aware that both support it. Now that APTX has been received by High Pass, more and more devices will be supported later. The current mobile phone products are not supported by Apple. SONY, Samsung, LG, HTC, Sharp and other brands are still generally supported. In addition, according to the spectrum test of a website, Meizu's Pro5 is also supported (it's strangely not a Qualcomm chip), but I don't know why it is not used as a promotion point. A complete list of Aptx's official website is here

As for the Bluetooth sound quality, then this speaker is a bit wasteful, Bluetooth listen to it on the line, after all, is mainly for wireless convenience.
After listening to the BOSE soundlink mini in the store, I also used the innovative two-generation sound tyrants and Harman Caton GO+PLAY to walk and sing the wireless version. I feel that Bluetooth is really just listening. Don't be serious... It is unfair to listen to all the Bluetooth speakers that the E5 has heard from the Bluetooth audio source after one ear seconds. After all, the volume of the speaker and the frequency accuracy of the monitor are there.

From the beginning of the 90's, I burned the hardware. Later I heard that I also bought a variety of speakers for my classmates. The innovative PC Works series and the Edifier 1000TC series also bought a Hyundai M200, which was very popular in the year. (Beginning in 1995, the MC magazine poisoned), remembering to be 1300 softcoins. The sound card that was allocated at that time was a 650 yuan innovation SB Live5.1 Gold, and later used to make part-time money at the university and replaced it with a 1,200-software Audigy 2 ZS...

Looking back on the age of exposure, I can't help but look back at the early days when these products and prices were really silent, but there was really no better choice in that year. With the passage of time, the audio field is changing with each passing day.
Choosing the right voice or a good voice is actually a behaving behavior of a beholder who sees the wise, and I am now more and more inclined to the former:
Do not want to be a variety of HiFi and metaphysical flicker, after all, listening to this is a relatively uniform standard. Now a casual speaker feels that he is HiFi. The consistency of the listening sound is much better, it is to follow the sound of the original taste. Just as SLR's goal is faithful restoration of the original scene, beauty cameras are treated as more enjoyable users. But sometimes it's really hard to say that it is to please the user's ear, or its own defect, after all, each user will not have a gold ear to distinguish. Listening belongs to professional equipment, so this type of product itself contains less moisture than HIFI products.

Finally decided to start entry-level monitoring, budget within 2k, decoder within 1.5k.

At present, the same specification selection as Eris E5 should be JBL's LSR305. How to choose it before has also tangled me for a long time.

Adjustable item : E5 wins: mid-high frequency EQ±6; acoustic space 0 to -4db; bass cut off.
Input interface : E5 wins, more RCA Lotus interface, better adaptability, but in fact can basically ignore.
Bass : LSR305 wins.
Energy saving : LSR305 wins. LSR305 is Class D; E5 is Class AB. (Tested, E5 single standby power is about 9.5W)
Sound field : E5 wins.
Site requirements : E5 wins, front inversion hole, acoustic space adjustment.
Price : E5 wins. If based on the Central Asian price, the LSR305 is more expensive. However, E5 often engages in spike prices. If the price of the two spikes can be separated by 1,500 yuan, it is almost double the price. The price of PreSonus sold in the country is still conscience, and JBL is not very kind.

In terms of listening effects, since there is no LSR305 on hand, it is only possible to judge based on conditional user feedback on the Internet:

This confirms the reasons for the previous selection of listening. The consistency of listening is very high. Under normal circumstances blind listening is difficult to distinguish.

In general terms,
If the listening environment is normal (look at the distance of the speaker inverting hole from the wall), it is recommended to select E5, the front inverting hole.
If the pursuit of the best price, it is recommended to choose E5, Z spikes are frequent and no one grabs, the price difference is double.

If the price is similar and the listening environment is also better, we recommend LSR305. After all, the bass LSR305 is slightly better.
So for the United States and the United States and the vast number of people thin, both the same price for 149 knife, the LSR305 ranked first in the sweet water network is not without reason.

Interview, sweetwater network, Sweetwater, which is one of the larger professional audio equipment vendors in the United States. Above you can see what kind of professional equipment the American people in dire straits like to buy, so it has certain reference value.

Looked at the housing prices of the empire is tens of thousands, and then take a look at their listening environment, coupled with the domestic price difference, or buy E5 it.

The final parameters are listed:
5.25 inch KevlarTM Kevlar Fiber Element Low Frequency Unit 1" Ultra Lightweight Silk Dome Tweeter
70W Class AB bi-amplifier front low-frequency pilot hole can better reproduce the low-frequency response To express a more accurate mixing environment, equipped with acoustic adjustment control IF (± 6dB continuously variable)
HF (±6dB continuously variable)
High-pass filtering (Off, 80Hz, 100Hz)
Acoustic space setting suggestion (flat flat, -2, -4dB)
Radio Frequency Shielding, Output Current Limiting, Over Temperature Protection, Bass Overload Protection Optimized Resonance Suppression TRS, XLR and Unbalanced RCA Interface with Internal Support Balance Maximum Sound Pressure Level 102dB

Then basically is to abide by the lowest price, and later found the law is that every week 6 am Amazon will engage in a 1599 spike of this speaker, abnormal stability (you want to deceive the coins you know), but the minimum is 1499, so continue to abide by No rabbits are scattered, but finally...

So decisively orders! Also used Central Asia App event vouchers, minus 13 (silk temperament full show), the last 1486 start!

The efficiency of Central Asia in the capital was very high and it was quickly unboxed:

Middle tone agent:

Continue to tear down:

The correct way to open the box:

Rear interface:

From top to bottom, from left to right:

The first row: volume, midrange, treble;

Second row: Bass cut off, acoustic space setting (refer to the dotted line connecting the three positions of the speakers to adjust the position);

Third Row: RCA Lotus Input, TRS Triple Balance Input, XLR Canon Balance Input

The rest is the switch, 110V/220V switch, power line socket, fuse replacement.

Manual, it looks like there is no recipe:

Recipes for stickers? Where?

Speaker foot stickers:

Later, this simple and easy job was commissioned by the maidservant of our family, Jiao Jiao Loli, and then when I turned back...

Such a magical method of posting, obsessive-compulsive disorder you feel good, carefully understand:

Summoning Arrays can also be formed:

Well, turn it to the front:

If you are idle, the shelf is also suitable as a dish:

The logo will turn blue after receiving the electricity, light pollution:

After the balance line, although the nature of the wire is a bit metaphysical, but resistance and anti-jamming is certainly a difference, so please find comfort in the heart or buy a good point. The wire is TRS three-core balanced mouth XLR Canon mouth, like Canon mouth because it can avoid the rotation of the interface. The cable is the well-known Mogami 2549, made in japan, with interface Neutrik.

So what is the balance of output, the explanation on the Internet is this:

Left and right are not balanced.

Although the serial numbers of the two speakers are continuous, it is found during the listening process that the left and right channels are unbalanced when the volume knob is also in the middle position. Later, in order to accurately test with the mobile phone, in order to avoid inconsistent test distance, position, and angle to get wrong test results, put the phone into the speaker inverting hole to play the white noise test, the horizontal line of the mobile phone screen is consistent with the edge of the inverted hole:

Confirm a difference of 3 dB. Although I can balance with the volume knob, I still do not accept it for patients with obsessive-compulsive disorder, so I replaced it. Although I purchased it for more than 10 days, Amazon responded quickly. I immediately arranged delivery after I applied, and I came early the next morning. Now. (Tucao look: Than the purchase within 7 days also requires the customer to go after the brand to open the test report after the opening of a strong Ning Qian returned)
Then I listened and finally balanced. Obsessive-compulsive disorder was finally cured! Believe in your own ears, you don't have to test your phone.

2. Computer noise

I didn't need to use an external decoder at the beginning, and when I directly integrated the sound card 3.5 to RCA Lotus output from the computer, it really scared me.

What kind of noise is that? The noise floor also changes with changes in the computer's wireless mouse, SSD reading, etc... Simply put, it's three words: I can't listen.

The sound card is the integrated sound card of Gigabyte G1.Sniper H6 Motherboard. Although it is known as the magic sound, although the replaceable amplifier chip is used, although the Realtek ALC1150 is called 115db low signal-to-noise ratio chip, although the metal shield is adopted, on-board audio processing is provided. Part of the line isolation, but there is no use of eggs, small three-core 3.5 to Lotus after the access to the end of high noise is scary.

With an external USB decoder, TRS balances the output and finally everything is quiet...

3.220V Mains interference

After a few days of use, it was found that only when playing a large game, the speaker would be disturbed by weak currents. It was speculated that high-power graphics cards caused power fluctuations.

Ground the speaker socket and use only two power sources to eliminate interference.

4. Strange periodic interference noise

Later, it was found that intermittent noise occurred at individual times, and one box had another one. Later, after swapping positions for a period of time, there is no problem, but they will still appear after a while, and they are all on one side. So basically eliminate the speaker's problem, it should be a source of interference around the outside world.

Later, it was discovered that Dafa’s Bluetooth receiver actually interfered with periodic Bluetooth scanning while waiting for a connection...

After changing the Bluetooth receiver to a place, just fine...

Although the final use of TRS balanced output to solve the noise phenomenon, the specific cause is still very confusing, so did a few tests,

Clean up the experimental phenomenon: (Headphones for the JVC S500)

1. Desktop with integrated sound card 3.5 to RCA to E5, serious murmur

2. Desktop with integrated sound card 3.5 straight out of headphones, no noise

3.MacBook with integrated sound card 3.5 to RCA to E5, no noise

4. Desktop with USB external decoder, 3.5 to RCA to E5, serious murmur

5. Desktop with USB external decoder, 3.5 straight out of headphones, no noise

6. MacBook with USB external decoder, 3.5 to RCA to E5, no noise

7. Desktop with USB external decoder, TRS balanced output to E5, no noise

8. MacBook with USB external decoder, TRS balanced output to E5, no noise

Then the question arises. What are the causes of the interference noise?

The decoder is external, and the USB connection between the decoder and the desktop is digital and should not cause interference, but it can be felt that the noise is significantly affected by the desktop. Then if the audio source itself has been disturbed, the balanced output should be useless, because the balanced output only improves the transmission interference to the speaker after the digital-to-analog conversion. However, as long as there is no noise when using the TRS balanced output, then it should be the interference of the external electromagnetic environment to the RCA cable, but the MacBook also uses the RCA cable without interference in the same environment. Feeling has entered a strange circle...

Finally tangled for a few days, I feel it is due to the desktop USB 5V power supply, and later found a bit about Taobao USB filter device, then a simple principle, the price of several hundred dollars did not scare me, so I found an abandoned USB cable, start DIY wire.

The final connection is shown in the figure above. Black is the original cable and only responsible for data transmission. Green implants are only responsible for power supply. USB has a total of 4 lines, green and white are responsible for data, and black and red are responsible for power supply. It is advisable to use a multimeter to measure well before such reconstruction. In case the color of the wire is wrong, it is to be broken.

In this way, the green USB cable can be independently connected to the power supply. Metaphysics masters and obsessive-compulsive disorder have no problem plugging in the mobile power supply and absolutely avoid interference from the mains. Black continues to connect the computer for data transmission.

After the USB cable was rebuilt, the previous noise disappeared completely even if 3.5 RCA was used to transmit to the E5. 0 cost to get, Taobao that USB hundreds of filter equipment is really a naked IQ tax ah.

So it seems that the balanced output can not only eliminate the transmission interference from the external decoder to the speaker, but also eliminate the interference caused by the poor power supply environment of the desktop USB itself. Balanced Dafa is good!

The subjective and metaphysical nature of sound doesn't want to say too much. It really doesn't want to add comments to become the lead game for HiFi and monitoring. In fact, I was originally the Swans powder, and after listening to the powder, I was transferred to another person...

But for sounds that are relatively unified and original clean style, this entry monitor is almost the best value for money, sound quality and sound field are very good, worthy of this price. Perhaps low frequencies are weak, but for this size and price, the gap is not too great. If the amount and listening space are plentiful, 8-inch is certainly a better choice (must look at the volume comparison chart before buying).

However, before entering the monitor, it must be psychologically prepared for its high resolution. In many cases it will amplify the shortcomings of the audio source itself, so it is also necessary to reserve a balanced output decoder budget, according to the experimental balance output can not only filter the wire transmission interference, You can even filter out USB-powered disturbances; non-balanced sources may cause interference noise and are not suitable for sensitive monitor speakers.

Finally put a fit figure:

This (wo) (yao) down (pian) times (jin) sun (bi)

Wall Mount

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