As early as the second half of 2010, when I first evaluated high-end headphones and amps, there was a 2,000-yuan headset AH-D2000 provided by the fans. This earphone has a closed design and sound. Not so "light", although we did not have a lot of earphones at the time, it also left a deep impression on us.

DENON Denon AH-D5000 Headphones

In the high-end headphones, Tianlong’s popularity is not as good as AKG, Sennheiser or even the Japanese iron triangle. However, the D2000, D5000 and D7000 models have been separated by more than 2,000 yuan. The pattern of the headset market has remained for many years, but there are certain among the enthusiasts. The popularity of the D5000 is initially priced at more than 4,000 yuan, while the online shopping price is about 3,500 yuan.

Regarding the life experience of D5000, there are many rumors among enthusiasts, and even there is a discussion about high imitation or fakes. However, it seems that the current D5000 does not have the problem of counterfeiting, we have specifically confirmed it; and more discussions about Tianlong Whether the headphones are from Fengda OEM [Japan Fengda Motor FOSTER]. This seems to be very likely, FOSTEX itself is Fengda's own brand of headphones, speakers, audio equipment.

Closer to home, the Tianlong D5000 still maintains the tradition of Japanese brand exquisite workmanship. The first impression of this earphone is of course from its wooden earphone casing, which is similar to the practice of the Iron Triangle. The head and details of the D5000 The workmanship is also very delicate. The picture shows the silver part connected to the head frame in a circle outside the wooden shell. All of them are made of aluminum. The surface oxidation process is very delicate and very light champagne gold. Our photos accurately show the D5000. Actual color.

The D5000 uses a 50mm neodymium magnet unit, a special fiber composite diaphragm, and a fully enclosed design. The official parameters are impedance 25 ohms and sensitivity 106 dB. The ear pads and the top of the head frame are wrapped with soft leather material, while the D5000 The thickness of the sponge ear pad is relatively thin. The D5000 uses the connection method of the left and right channels respectively. The official said that the 7N-OFC quality wire is used. If it is true water, it is not low. And this earphone Due to the use of metal frame, head frame, the weight is also slightly heavier, the actual measurement does not include the wire weight of about 355 grams [official index 370 grams]. But the overall wearing comfort is better.

In order to complete the test better, we confirmed the usage of the headset provider. Since the netizen said that the usage time is about 300 hours, Soomal added about 400 hours of downtime before the test. Confirm that this earphone is genuine from the anti-counterfeit label on the earphone. Due to its sound style and price positioning restrictions, we will choose the AKG Q701 and AKG K702 as the main reference for this evaluation, and also add familiarity. Sennheiser HD650 [but the style difference is large], etc.. Because D5000 needs amp support to have better play, the audio platform is mainly based on HP11 amp [Gain=3, FB=2]. In addition, Monitor 06 MX is used. , Fantasia USE, Serenade HP amp, etc. as a reference.

Overall impression : Tianlong D5000 as a headset with a price of about 3,500 yuan, the actual price is actually close to the Sennheiser HD650, higher than the AKG Q701. The opening of the D5000 can make people both on the sound card and even on the mobile phone. I immediately felt that it was a high-frequency, but the whole sound was not dynamic. The intermediate frequency not only showed lightness, but also the mid-low frequency was vague and collapsed. This made us realize that we must try the upper amp to know its performance. how is it.

Interestingly, we used Lehman's amp first, and the performance is still unsatisfactory. The overall effect is not much better than the direct push of the sound card. The main reason is that the intermediate frequency is not full enough. Although the low frequency is not excessive, it is very We are so weak that we even think of the Sennheiser HD598! But when using the HP11 amp, the D5000 is obviously rejuvenated, and the IF dynamics are very obvious. But considering its delicate and high frequency and HP11 style, we will put the amp The parameter setting is in Gain=3, and Feedback=2. In fact, D5000 has strong adaptability. If the amplification factor is increased, a more concentrated effect can be obtained, and the distortion does not increase significantly.

High-frequency performance : Even on portable players with insufficient driving force, such as Xplay, IPC, etc., the D5000's high frequency also shows the level of a high-end dynamic ring headphones, its high frequency is more delicate and delicate, and There is no bonefeel in the iron triangle, less metal flavor in the iron triangle, and a little warmer introverted style. Its high frequency is more relaxed, but not particularly bright, the D5000's high frequency is slightly brighter than K702 than Q701 It's a bit darker, but it's more restrained and more refined than their high frequency. The dynamic is slightly less than the Q701. As a closed-type earphone, from D2000 to D5000, it doesn't feel its sound is rigid, cautious, also Did not deliberately highlight the high frequency density.

Under the HP11 amp, the D5000's high-frequency dynamics have not improved much. Compared with the Q701, the sound of the D5000 is much cleaner in the extremely high-frequency part, but the sound is not as open as the Q701, and the sound field is slightly weaker. Some weak transient details, D5000 and Q701 show a distinctly different style, the former is more restrained and stable, the latter is more youthful. In some large dynamic performance, Q701 and even K702 will be slightly rough [K701 has a similar situation] There will be some burrs in the sound, and the D5000 has very few problems in this respect. We believe this may prove that the D5000 may indeed be more advanced from the speaker technology.

In the performance of the string, the D5000's sound is smooth and warm, and the mid-high frequency part is softer and more restrained, but it is slightly worse than the open design Q701, K702 or even HD650 in terms of explosive power and dynamics. Some metallic lusters are high in medium and high frequency. The performance of the frequency part, Q701 is more enjoyable but it seems a bit rough [relative D5000].

IF performance : The D5000's IF must be matched with a good enough and suitable amp to have normal performance. For example, the Lehmann amp [10dB, 20dB gain file] is not suitable, and if you use the 06 MX headset directly, The IF "chassis" is obviously weak. Using the Fantasia USE amp and the Serenade HP will definitely improve the D5000 mid-band. The HP11 is the best performer under the right settings.

The D5000's mid-range is balanced and overall. When there is no amp, it is like HD598. It always feels weak [but tighter than HD598], and under the heavier amp, its mid-range has a lot of room for improvement. In terms of vocal performance, the D5000 still maintains a restrained style, the sound is not warm, and it sounds like a "closed version" of the Q701 in terms of style? Its true voice still looks less heavy. Thick, and the HD650 is completely different style [it seems not as slack as the D2000? Uncertain], the lighter style is very similar to AKG. Not enough in the middle and high frequency part due to the cooperation of the amp, it is more full than the K702, even Compared with the Q701 in the vocal performance, especially the female voice performance is more full and solid. Just in the details of some high-frequency breath, no Q701 so calmly stretched.

In the low frequency part of the mid-range, you can increase the "taste" of the amp, increase the Gain, and get stronger dynamics. And in our setting, its low-frequency has become somewhat cautious, although it is difficult to make you feel It's rigid, but both HD650 and Q701 can show better dynamics in this part, and this momentum comes more naturally in big dynamic music.

Low-frequency performance : D5000's low-frequency sense is slightly more than AKG under any sound source. However, when there is no HP11-level amp support, its low frequency sounds strange, the low frequency is slightly out of phase with the low frequency, and the low frequency is weak. "Point to the end" is extremely weak, there is no dive but there is no resolving power. Under HP11, the D5000's low frequency can become quite heavy, but considering the overall style, we have a low-frequency sense that is not too much. It's only a little more than the Q701. The low frequency of the D5000 is hard to show the rich taste of the D2000 when we tested it [but it also lacked the Tatsujin amp of the year]. Overall, the D5000 still showed a gentle and elegant Style. Low-frequency sound is not slack, but the resolution is still in a good level in high-end headphones. But for the low-frequency, D5000's voice is biased, for the big dynamics, the D5000's low-frequency momentum is slightly insufficient, of course, better than Q701 and K702, etc.

Summary : D5000's impedance is only 25 ohms, the sensitivity of 106dB, 50mm diameter speaker and closed design makes it not easy to drive. The general sound card headphone output may be difficult to cope with D5000. For example, in the same setting of HP11 amp, D5000 may Need to be 4-5dB higher than the Q701 output level setting will have a considerable loudness. If you want to use this headset level recommended to choose the right headphone amplifier, this is probably more troublesome. Of course, D5000 also shows a closed design And some advantages of high-quality speakers, such as high-frequency burrs are obviously less likely to appear than Q701, closed design also brings a more restrained style, with warm sound heavy taste amp also has a good effect. Compared with open design Its low frequency is not suitable for the performance of particularly large dynamics, but the vocal performance is slightly but a little more refined, but more delicate. In general, the Tianlong AH-D5000 does show its characteristics and relatively 2000 yuan level. The advantage side of the headset, but more support for the amp source.