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Feiao's previous generation of portable Bluetooth decoding earpiece BTR3 is a very successful product. It supports high-definition Bluetooth format in a small volume and provides better sound performance. It gives many mobile phones that cancel the headphone mouth a good solution to connect wired headphones.
In recent years, real wireless earphones have developed rapidly, and portable Bluetooth decoding earphones will theoretically be affected to some extent. However, judging from the sales momentum of Feiao's new products BTR3K and BTR5, this market is still very large. After all, the sound performance of real wireless headphones is still unable to compete with wired headphones and the price is relatively high.
1:
The appearance and volume of BTR3K are basically the same as that of BTR3. The biggest difference is that the back clip of BTR3K is detachable, and the back clip of BTR3 is integrated. BTR3K adds a 2.5 balance port, and the earphone output port and charging port are arranged separately at both ends.
The appearance of BTR5 is one circle larger than BTR3K, but the size is much smaller than that of portable players, and the portability is quite good. Please refer to the actual ratio in the figure.
The back clip of BTR5 is also detachable. BTR5 has an OLED display screen, which can display volume, mode and other information, which is really much more convenient to use.
The hardware configuration is different:
1. Due to volume limitation and endurance requirements, BTR3, BTR3K and BTR5 Bluetooth decoders all adopt DAC earpiece integrated chips, and the number of models is different:
BTR3: single AK4376A;BTR3K: double AK4377A;BTR5: double ES9218P
The AK4377A is a slightly improved version of the AK4376A, and the ES9218P technical index is much higher than the AK4377A (THD N:-114db VS -107db).
2. In addition to the difference in DAC AMP model and quantity, BTR3K has more dual independent crystal oscillators than BTR3. BTR5 also adds FPGA clock management dual independent crystal oscillators.
3. Other technical advantages of BTR5: An independent USB decoding chip (XMOS XUF208) is added to support asynchronous USB decoding. (BTR3/BTR3K also supports USB decoding, but it is not asynchronous)
4. Duration: 11 hours for BTR3 and BTR3K and 9 hours for BTR5
common features of BTR3, BTR3K, and BTR5:
Both have noise reduction microphones (BTR5 has two channels); both support voice assistants;
Bluetooth chips are all: Qualcomm CS8675, which supports various Bluetooth formats AAC/SBC/aptX/aptX LL/ aptX HD/LDAC
Price: BTR5:698 yuan BTR3K:398 yuan
2. sound performance:
All auditions are Android phones, and LDAC HD Bluetooth format transmission is turned on by default. The audition is as follows: Baiyaxelantu, black oriole.
1. Comparison of BTR3K and BTR3 sounds
Single-port comparison: The sound difference between BTR3K and BTR3 under single-port drive is actually not obvious. Relatively speaking, BTR3K has a higher sound density and a more solid medium and low frequency. High frequency details, low frequency control force, etc. are basically the same. In theory, the AK4377A used by BTR3K is higher than the AK4376A output power of BTR3. The actual data test single port output power is basically the same.
BTR3K has more balanced output. Under balanced drive, not only the output power is obviously improved, but also the difference between audibility and single port is easier to distinguish: BTR3K balanced port has certain improvement in high frequency resolution and separation degree compared with single port, and low frequency dynamic is also slightly improved.
It can be said that:BTR3K over the old version of BTR3 is mainly in its balance port. Considering that the price of BTR3K is the same as that of BTR3 in that year, it uses an extra DAC AMP, which increases double crystal vibration and balanced output, which can be called a value upgrade!
2. BTR5 sound performance:
First of all, it is very convenient for BTR5 's small display screen to display volume. BTR3K/BTR3 has no volume display, so it is customary to lower the volume before each audition to avoid large volume attacks.
Single port: The sound difference between BTR5 and BTR3K is obvious. One ear can tell that the two are not of the same grade.
In terms of sound style alone, the two are actually one kind, both are relatively balanced and neutral,BTR5 sound are obviously better than BTR3K. Listening to various types of music such as human voice and instrumental music, the difference between the two can be easily distinguished.
Balance port: The sound of BTR5 balance port is obviously improved compared with that of single port. This improvement is much larger than that of BTR3K's single-ended/balance port. The main reason is that the analytical force of medium and high frequency is obviously strengthened, the sound field is expanded, and the low frequency is dynamically improved.
With the black oriole, a soft earplug, it still looks "stuffy" on the BTR5 single port, and it is basically acceptable to change to a balanced mouth.
Comparison of BTR5 with Portable Player:
I specially found a hot product of 1000 yuan a few years ago: Shanling M2S for comparison. On a single port, there is little difference between the two. M2S has slightly better medium and high frequency details than BTR5. Changing to BTR5 balance port, the medium and high frequency details will directly exceed M2S. M2S has only a single port, which may not be fair, but considering the lower price of BTR5, it is indeed commendable to have such sound performance.
USB decoding for BTR5:
When the power-on state is inserted into the USB interface of the computer, it will be automatically recognized. If it is a Bluetooth connection state, it will automatically switch to the USB decoding state.
Compared with the onboard sound card, BTR5 is used as a USB decoding earpiece. No matter the output power or the details and dynamics of the sound, it is easy for the onboard sound card (Asus Z270-K motherboard). The output power of the onboard sound card is too low, and the volume of the Philips X1 is barely pushed.
There are still some differences between the sound of BTR5 USB connection and Bluetooth connection. The sound field of USB decoding method is relatively narrow and the sound is slightly dry. Judging from the test data, the USB decoding data is also worse. The bottom noise of BTR5 will change with the volume in the USB decoding state, and the noise will not be heard under the normal listening volume.
(Generally, it is not recommended to use BTR5 as a USB decoding ear for a long time, because BTR5 has a built-in battery, which is equivalent to working while charging and generating heat. Long-term use may have a certain impact on the battery.)
BTR5 Summary: Small size, good operability, balanced output, and super-value sound performance can be regarded as a substitute for a thousand-dollar portable player.
BTR3K and BTR5:
If the earplugs used are low-priced entry-level and are more sensitive to price, choose BTR3K.If the earplugs sound better, it is recommended to choose BTR5, and it is worthwhile to spend an extra 300 yuan in exchange for a significantly improved sound level, three times the output power, better operability, etc..
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Attached: Test Data
test is based on the earphone test standard for portable players in the world:
Audio Precision APX515professional audio analyzer,1KHZThe test file is16bit/48khz, standard load32Europe,THD Ntest data and noise base data areA. The separation degree and bottom noise data are the measured data when the player is set at 1V output.
author:This topic is published by af2000 on 2020-5-13 17:25
website: http://erji.net/forum.php?mod=viewthread&tid=2186753&extra=
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