Denon C620R In-Ear Headphones Experience Evaluation Report

Denon is a brand owned by the famous HiFi audio brand Marantz in Japan. The positioning of the products and the products of Marantz do not seem to be much different. They are all in the mid-to-high-end market. Denon’s audio products have a certain weight in the eyes of the older generation of enthusiasts. Although it seems to be tepid (especially headphones) in China, it is absolutely impossible to deny the strength of the brand.

Denon’s headset products are not too many, but you can still see them at some airport convenience stores or digital stores, from the lowest end of more than one hundred dollars to thousands of dollars, and its AH- The MM400 headset has a lot of fame, of course, this is not a test, but a product that is not too expensive (relative) – C620R.

01. Packaging and accessories

Denon looks a bit retro in the design of the headphone box, but it has a certain continuity with the packaging design of other products. Of course, considering the box of the C620R sold in the store, the ring is also designed. The size of the box is medium to large, it is very heavy in the hand, and it is the design of the magnetic flip cover, even if you do not open the box, you can see the headphones placed inside.

The C620R’s packaging box is all made of carton. The magic is that there is a plastic magnetic strip inside the ring, and there is also a patch coil at the bottom of the inner layer of the box. It is suspected to be used for anti-counterfeiting and anti-lost in the mall. There is nothing to do with the NFC-enabled cell phone scanning coil, which is a magical place for the C620R package.

After opening the box, the earphones are wrapped around a huge rubber winder, which is wrapped in a very thick cushioning sponge. The lower ear sponge is placed with the spare earbuds and accessories for the earphone. The design of the box gives a high-end and professional feel. Although it doesn’t look good, it does match the image of Denon.

The C620R has not many accessories, two manuals, a plastic clip, a ComplyTM earbud, four different sizes of silicone sleeves, and a large rubber winder. This rubber winder seems to be able to store the earphones well, but the process of taking it is very inconvenient, so it is still recommended to use the C620R with a storage bag.

02. Appearance and workmanship

If you’ve seen Denon’s other in-ear headphones, it’s not hard to find that they still have some of the same design languages in the design, such as the large-area plastic case and metal material embellishment, it seems a bit “retro” Wire handle. In fact, the design of the C620R is somewhat aesthetically pleasing, and girls will never like the appearance of the C620R that looks somewhat “aged”.

The C620R uses plastic as the main material for the cavity. Even Sony does not like to use plastic as the earphone casing today. Denon still prefers this. The appearance of the C620R is actually more eye-catching, but the design of the punching and bending prevention of the wire handle is rarely seen at present, and it is easy to give a feeling of “re-reading machine” headphones.

The C620R is also designed to be worn in a slant-in-ear style, and the C-sleeve has been installed on the body. The C620R comes in two colors, silver black, and silver in our hands. The three-piece housing of the plastic front cavity + metal back cavity looks a bit less refined in appearance, and it is true.

We have seen a lot of harmonious and unified products designed with metal casing + plastic casing, but the C620R seems to sing a reverse tone, not only to create a sense of division between the metal part and the plastic part in the design but also to make the gap The thief is thick, so even if the C620R works well, it is difficult to give a feeling that looks very beautiful.

However, the design of the rear end of the C620R cavity is really easy, because this part of the metal case is not in contact with the skin under normal wearing conditions, so the benefit is that if you play the phone while charging, or directly plug in the computer, if you The front-end equipment is not grounded, so it will not bring about leakage of the ear. After all, many users are not aware of the front-end equipment problem. As long as there is leakage, let the earphone back.

The LOGO of the earphone is located in the middle of the rear of the cavity. Although the area is very small, the CD concentric circle and high-light chamfer are still made in the middle part of the rear end. The processing is very fine. These details are easy to make you feel good. The metal back cavity uses the effect of polished + brushed glossy finish.

In fact, the details of the C620R work is very good, even if there are some exposed mold lines, it is very flat. And in the wire control part of the earphone, an embossed pattern similar to the knurling is also made to enhance the hand feeling. As we said before, the C620R is hard to give you a sense of exquisiteness. We think that the biggest reason is that it has too many cavities and still has a large gap.

We are also very puzzled. Nowadays, earphone products are all facing a higher precision casing. The smaller gap is the development direction of good workmanship, but you can’t see much effect in the C620R. The gap between the cavities can definitely be After a period of use, it has to be contaminated, but you have to admit that the C620R does not have the common work problems such as raw edges and uneven gaps.

The C620R’s catheter is short and thick, so even if it is used with the C set, it needs a slightly larger diameter model, and the C620R itself has a larger silicone sleeve, so the C620R does not seem to have the usual oblique in-ear headphones. Comfortable, of course, it won’t look very good.

The C620R provides an MFi-certified three-button remote control MIC. It can be used to switch songs and adjust the volume on the iPhone. However, this function may not work on some Android machines, but fortunately, although the C620R is a national product, the line order is still There is no need to worry about the American standard. In addition, the wire-controlled outer casing is not made of metal but is made of plastic material. However, the workmanship and fineness are very high, but it is not known whether there is a hidden danger of falling paint.

Perhaps the most dissatisfied is the C620R wire. The C620R wire is very soft and has no elasticity, but it is easy to wind and flat. Perhaps because of the thinner core, there is a slight gap between the wire sheath and the core, resulting in a lot of wrinkles in the C620R wire portion that is placed in the winder for a long time.

Since this is a headset sent by a fan, we have not tried to see if it can make the wire flatter, but from the feel and the line with the gap, we can see that the C620R wire is not so strong, good. A rubber + metal splitter card is designed, and a very stable slider is also designed at the end. The slider is useless in the C620R, but it can protect the wire.

3. Sound performance

The C620R is not the earphone of the top model of the Denon, but its sound has a good reputation on the Internet, but this plug is still somewhat niche. As a Japanese brand of headphones, the C620R is not a small gold standard, which is somewhat surprising, but these do not affect our sound evaluation of it.

The C620R uses an 11.5mm moving coil unit. This size unit does not seem to be common in in-ear headphones. The parameters look friendly, the impedance is only 16Ω, and the sensitivity is 110dB/mW. It is not a problem at all.

Listening and style impression: In fact, most of the C620R sound performance descriptions are based on the use of C sets, and like its “big brother”, C620R is given the “box smell” evaluation, in fact, “box “Meat” does exist, that is, the earphone can create a relatively wide and regular sound field and a good low-frequency dive, then it gets a little “box smell” feeling, of course, everyone’s understanding of this concept is slightly There are different.

The sound of the C620R is not balanced, its low-frequency sense is large, and it has a strong sense of power. Although the low-frequency sense is too large, it does not cover the details of the mid-high frequency part. Therefore, after listening to the C620R, you will not feel that this earphone will be confused and stuffy, but it has a certain sense of transparency. If used in conjunction with the C set, the sense of low frequency will be more full, the high frequency will be more convergent, and the sense of hearing will show a more intense feeling.

In terms of sound style, the C620R has obvious habits of thin mid-high frequency that Japanese manufacturers like to match with a relatively large amount of low-frequency habits. Of course, compared with the style that domestic manufacturers like, the C620R sound is indeed a “niche.”

It is true that the sound field performance of the C620R gives us a good impression. It is also rare at present. In the case of ensuring a wide lateral direction, the longitudinal direction is not excessively squeezed, resulting in a relatively regular sound field performance, compared to H297. The vertical sound field performance of TFZ KING II is not as natural as the C620R, and the ST08 featuring the “big sound field” does not sound as natural as the C620R. Even when listening to some large classical music, the C620R can bring good results. The positioning of the instrument.

High frequency: The high-frequency performance of C620R is tough and crisp, and when using the original large diameter silicone sleeve, the high-frequency part is more sensitive than the C set, so it will be certain in the performance of some female songs. Tooth sound. Compared with the high-frequency ductility of Philips S2, the C620R’s high-frequency to very high-frequency ductility does not appear so natural, and slightly irritating, and there is a certain burr. After trying to replace the common small-caliber bullet-type earplug sleeve to weaken the high-frequency, the high-frequency part converges a lot, and the listening feeling is better.

IF: The C620R’s mid-range sound is clean, with good resolution and sound density. The purity of the intermediate frequency is cleaner than that of the H297 and ST08. Many people care about the low frequency and thus affect the medium and high-frequency performance. The C620R does not exist. Instead, we think that the IF part is the C520R.

Low frequency: The low-frequency performance is a very characteristic part of the C620R, because the low frequency of the C620R is really not small, although it is still not up to the point (almost), this has a higher low-frequency density. And the low frequency of power is one of its advantages and a disadvantage. If you listen carefully, you will find that the low frequency of the C620R is slightly stiffer. The low-frequency cohesion and density are excellent in dynamic headphones, even slightly similar to the low-frequency of some moving iron headphones, but the difference in size.

Summary: The C620R shows us the Tuning aesthetic style of the manufacturer. Its overall sound quality is not bad, but the sound style seems a bit “personal” because it is difficult to find too much in common with other headphones on the C620R. And similarities, especially its low-frequency performance.

Advantages: good sound quality, good wearing comfort, with C sets, excellent vocal performance.

Disadvantages: high-frequency quality in general, wire work in general, details work in general.

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