Good afternoon (evening/night optional). We will gut the headphones that everyone is disgusted with, or rather, one earphone. I think it will be possible to close the topic about these headsets once and for all. Evisceration is present.
I finally got my hands on a toy like this. I know of 2 headsets in this form factor, two of them are called i7, and the second i10.
So, those two versions, which are called i7, are produced with different chips. One is produced on JieLI chips, and the second, as it turns out, is produced on a Beken chip. I saw a review here about the first version, but not about the second.
I'll warn you right away the price is for one earphone.
We'll figure out.
As usual, a warning:
All responsibility, namely independent penetration into the body of the finished product with subsequent violation of its integrity and performance, lies with the person who committed this action.
When do you need loud headphones, and how does loud sound affect your hearing?
Loud headphones are needed for those who do not enjoy listening to music at standard volume. In addition, bass and rock genres are fully revealed at increased volume.
In addition, in a study at the University of Leicester, scientists found that many headphones produce sound pressure of up to 120 dB. This is scary because... noise exceeding 110 dB "impedes the transmission of electrical signals from the ears to the brain."
Now about the other side of the coin. Experts from the BBC website have found a direct correlation between hearing loss and listening to music at high volumes. The standard sound exposure limit is 85 dB (highway noise during rush hour), and prolonged exposure to louder environments increases the risk of hearing loss.
Of course, you can listen to loud music, but you shouldn't do it often. In this case, the sound should be no more than 110 dB.
Disassembly
The device is quite easy to disassemble:
1. Pry up the decorative, shiny pipik:
2. Then use your hands to slightly twist the place with the speaker and voila:
An unnamed battery was installed, its capacity was Imax b6 - 40mA.
3. Next, carefully remove the control board:
This case was built on BK3259SQ16A, I didn’t find the datasheet, but there is a suspicion that it is a relabeled JieLi chip
What to look for when choosing loud headphones
When choosing loud headphones, consider the following criteria:
- Amplitude-frequency response. Frequency response is a graph of volume versus frequency (indicated on the box). You need to choose the frequency response depending on what kind of music the user will listen to. For example, bass devices are characterized by a rise in the mid-bass and a late fall in the lower bass. High frequencies are characterized by a late decay at the top.
- Headphone sensitivity. The higher this parameter, the louder the music played by the device. For most users, a parameter in the range of 100-110 dB will be sufficient. However, stationary models produce sound with a sensitivity of 120-130 dB.
- Headphone resistance (impedance). This parameter determines the volume of the headphones. If the model is selected for connection to a phone or standard player, headphones with an impedance of up to 32 Ohms are suitable. If the user has an advanced player or amplifier, the impedance should be higher, but up to 100 Ohms.
- Frequency range. This indicator affects what frequencies the music will be played at. The human ear perceives frequencies from 20 to 20,000 Hz. There are also models with an increased frequency range. This means that the final declines and rises begin at these far boundaries.
Which studio headphones are better to choose?
When choosing studio headphones, the user must take into account that he will spend a long time in them, so first of all it is necessary to pay attention to wearing comfort, weight and reliability of the design.
You should also understand the sound characteristics, which include:
- Minimum and maximum reproduced frequencies. The wider this range, even if it is not perceptible at the borders of the human ear, the better the sound will be.
- Impedance (internal resistance). In most studio headphones, this figure is high and requires the use of an additional amplifier, so portable devices simply cannot “drive” monitors.
- Diameter of the radiating membrane. The larger it is, the more clearly low frequencies will be transmitted.
- The volume of the played track directly depends on the sensitivity or sound pressure level.
- Harmonic or nonlinear distortion factor. The higher its value, the more the original sound of the instruments and voice will be changed.
- Power. This characteristic does not determine the volume, but the mechanical reliability of dynamic drivers.
15th place BEHRINGER BDJ 1000
Budget full-size studio headphones are intended primarily for use by professional musicians in the process of monitoring and mixing music during recording. The headphones have a wide dynamic frequency range and surprise with high sound quality for its price.
Externally, the headphones look attractive, but due to the rough material of the ear pads and headband padding, wearing them is not entirely comfortable.
BDJ 1000 specifications table.
| Headphone type | Full size, studio |
| Design | Foldable with adjustable headband and swivel cups |
| Connection method | Wired |
| Color | Black |
| Acoustic design | Closed |
| Emitters | Dynamic |
| Diameter of radiating membrane (mm) | 57 |
| Minimum Frequency (Hz) | 20 |
| Maximum (Hz) | 20 000 |
| Sensitivity (dB) | 107 |
| Internal Resistance (Ohm) | 64 |
| Cable length (m) | 4 |
| Plug connector | Mini jack 3.5 mm + adapter to 6.3 mm |
| Peculiarities | One-way cable connection |
Advantages of BDJ 1000:
- Appearance.
- Foldable design.
- Great sound.
- Long twisted wire.
- Price.
Disadvantages of BDJ 1000:
- Build quality, materials.
14th place Shure SRH1440
Full-size headphones, equipped with a detachable audio cable made of oxygen-free copper, with gold-plated connectors and two-way connection, are used by professionals both for mixing music and for listening to tracks.
The package includes replaceable ear pads, a spare cord, and a case for storing and transporting the headphones.
The sound has a good, wide stage, excellent detail, and each musical instrument is clearly audible. The bass is reproduced with high quality, the high frequencies are clear, bright and sonorous, and vocals are reproduced volumetrically.
The low internal resistance makes it possible to use headphones with weak sound sources. The headphones fit comfortably and do not cause discomfort when worn for a long time.
SRH1440 specifications table.
| Headphone type | Full size |
| Connection method | Wired |
| Color | Black |
| Maximum power (mW) | 1000 |
| Acoustic design | Open |
| Emitters | Dynamic |
| Diameter of radiating membrane (mm) | 40 |
| Minimum Frequency (Hz) | 15 |
| Maximum (Hz) | 27 000 |
| Sensitivity (dB) | 101 |
| Internal Resistance (Ohm) | 37 |
| Cable length (m) | 2,1 |
| Plug connector | Mini jack 3.5 mm, adapter to 6.3 mm |
| Weight (g) | 343 |
| Peculiarities | Two-way cable connection Neodymium magnets |
Pros of SRH1440:
- The sound has good detail and a wide stage.
- Comfortable fit.
- Detachable wire.
- Case included.
- Pair of replaceable ear pads.
Cons of SRH1440:
- Short cord length.
- Non-folding design.
Recommended reading: the best JBL headphones.
13th place Axelvox HD241
A lightweight model of full-size studio headphones with low impedance that works well with portable devices and provides high sound quality at a low price.
The sound is transmitted clearly, cleanly, with good detail. The highs are balanced, the bass is rich and booming. The mid frequencies are well developed, there are no distortions or colors. Headphones are suitable for detecting defects in recordings when working in the studio.
HD241 specifications table.
| Headphone type | Full size, studio |
| Connection method | Wired |
| Color | Black |
| Maximum power (mW) | 300 |
| Acoustic design | Half open |
| Emitters | Dynamic |
| Diameter of radiating membrane (mm) | 50 |
| Minimum Frequency (Hz) | 10 |
| Maximum (Hz) | 30 000 |
| Sensitivity (dB) | 98 |
| Internal Resistance (Ohm) | 32 |
| Harmonic distortion factor | 0,25% |
| Cable length (m) | 2,5 |
| Plug connector | Mini jack 3.5 mm, adapter to 6.3 mm |
| Weight (g) | 276 |
| Peculiarities | Single-sided cable connection Neodymium magnets |
Advantages of HD241:
- Light weight.
- Classic design.
- Reliable design.
- Comfortable fit.
- Good volume reserve.
- Headphone sound quality.
- Can be used with any sound source.
- Case for storage and carrying.
- Good price.
Disadvantages of HD241:
- Long permanent cord.
12th place Shure SRH440
Full-size studio headphones have a foldable design and good build quality. The headphones reproduce sound well at any volume thanks to the extended frequency range. All main characteristics of the headphones are optimized for use with different audio sources.
The sound is characterized by some lack of low frequencies, while they sound good in detail. The mids are transmitted clearly, evenly, without obvious peaks or dips, and the highs are energetic and well detailed.
SRH440 specifications table.
| Headphone type | Full size |
| Connection method | Wired |
| Design | Foldable with adjustable headband |
| Color | Black |
| Maximum power (mW) | 500 |
| Acoustic design | Closed |
| Emitters | Dynamic |
| Diameter of radiating membrane (mm) | 40 |
| Minimum Frequency (Hz) | 10 |
| Maximum (Hz) | 22 000 |
| Sensitivity (dB) | 105 |
| Internal Resistance (Ohm) | 44 |
| Cable length (m) | 3 |
| Plug connector | Mini jack 3.5 mm, adapter to 6.3 mm |
| Weight (g) | 311 |
| Peculiarities | One-way cable connection |
Pros of SRH440:
- Nice build.
- Comfortable to wear.
- Folding type of design.
- Case included.
- Detachable twisted wire + extension cord.
- Good detailed sound throughout the entire frequency range.
- No coloration or sound distortion.
Cons of SRH440:
- Heavy cord.
- Few low frequencies.
