Super cospa speaker "SB-C600", "Surprised by the sound of TechNics, which is available for a total of 220,000 yen

It looks small, but the contents are dangerous

As I wrote in the previous article, technics audio products are deployed in three lines, "Reference Class", "Grand Class", and "Premium Class" in order from the top series.Above all, the SB-C600 belongs to the "PREMIUM CLASS" in the most easy to get.

Suddenly, the SB-C600 was an outrageous speaker with overwhelming technologies that seemed to be an entry line.From last year to this year, I have reviewed quite a few entry-class speakers, but the SB-C600 was the top class in terms of the sound of the sound.

First, let's explain from the SB-C600 outline.This speaker is a coaxial two -way bookshelf that inherits the sound source and linear phase concept, which is the tradition of technique speakers.The outer dimensions (width x height x depth) of the enclosure are 173 x 293 x 283mm, weighs 6.3 kg, the same as the size of a general bookshelf speaker.In other words, it is an ambitious work that technics put into the Hi-Fi speaker fierce battlefield.

The regenerated frequency band is 40Hz to 100kHz, which is a very wide range, especially the high range growth.Although it is a relatively small model, it is reliable that it corresponds to the high -frequency limit frequency of the high -resolution merit.

The SB-C600 has the concept of "movement and still".This is a coaxial speaker unit, which creates a clear sound image and a transparent tone, and combines it with an excellent response front bath reflex port to express accurate "movement".He pursues "still" with the "center of gravity mount structure" that greatly suppresses unnecessary vibration.

Let's explain in detail a little more.The newly developed "Advanced Phase Precision Driver" will be adopted.The general two -way speakers are equipped with a tweeter in charge of the high -range and a woofer in charge of the mid -low range.In short, two units are installed.In general, the upper unit is in charge of the high range, and the lower unit is in charge of the mid -low range.

However, coaxial units such as SB-C600 have one unit on the exterior.In the unit, there are two diaphragms in charge of the highs and the mid -low range, and the center is in the high range, and the surrounding diaphragm is in the mid -low range.As a result, the sound is literally "coming out of the coaxial and" scoring source.It expresses sound images and three -dimensional sound stages that appear in the center of the two speakers, which are the real pleasure of stereo regeneration.

However, the coaxial type is not low in technical difficulty, such as suppressing the interference of the two units.On the other hand, in the technics, the "Linear Phase Plug", which corrects the phase characteristics of the high -frequency range in charge of the tweeter, "declines the phase difference due to the difference in the height of the dome of the diaphragm", and "viewers."It has three functions: the wave surface of the center of the vibration plate, which is fast reached, and the wave surface of the area around the diaphragm, and "adjust the spherical waves and lead them forward without breaking."

In addition, both tweeters and woofers use aluminum -treated aluminum dynamic plate materials to unify the tone.In other words, the SB-C600 is unified in two different units on both the sound image position and the tone.The crossover frequency between the tweeter and woofer is 2kHz.

In addition, the bass reflex duct on the front is also devised.The port shape using fluid analysis technology focuses on the wing sectional shape of the aircraft has succeeded in uniforming the flow velocity near the exit by adopting the newly developed "Smooth Flow Port".In addition, the port surface has a protrusion -shaped fin, which works like a boltex generator (like a F1 machine aerodynamic).This reduces noise, such as bass reflex ports, which is occasionally pointed out by bass reflex speakers, and aims for a low -range low range.

And this part is the so -called "movement" part.Next, I want to talk around the cabinet that guarantees "still".

The major feature of the SB-C600 is that it has an elaborate cabinet structure that does not seem to be an entry model.The strong cabinet "HIGH-RIGIDITY CABINET" was adopted, and the Balanced Driver Mounting Architecture was the first bookshelf speaker of the company.

The general speaker unit is equipped with a lightweight diaphragm on the front side, and a heavy magnet and coil on the rear side.Normally, in speakers, the speaker unit is fixed to the front baffle with screws, etc., but the heavy rear side is inevitably hanging behind the front baffle, and the weight balance worsens.

On the other hand, the SB-C600, which adopts the center of gravity mount structure, has a MDF mount baffle with a thickness of 21 mm inside the enclosure, and fixes the unit there.

As a result, the balance of the center of gravity when the amplifying plate was amplified was improved, the units of the units were reduced, and an accurate vibration plate stroke was realized.Furthermore, since the vibration of the cabinet itself is greatly reduced, the vibration transmitted to the outside is reduced in both environments installed on the speaker stand and on furniture.

In addition, this mount baffle is optimized so that the air flow inside the enclosure does not impair, also considers the sound distribution from the back of the unit, and has the effect of increasing the rigidity of the entire enclosure.It's a really clever technique.

However, in the production process, the production efficiency decreases, such as the need for a long driver to install the unit.With that in mind, I was impressed that I often put this technology in this price range.

In addition, a sharp technical approach and high -quality parts that do not seem to be 100,000 yen, such as a network circuit that uses a metalized poly propylene film capacitor and a laminated steel plate core coil, and a gold -plated brass speaker terminal.Is mounted.

However, when I checked the specifications, I found only one worries.It is quite low at 83db/2.83V (m) and 80db/W (m), with the output sound pressure level of this speaker, so -called efficiency.

In recent years, the bookshelf type has a low efficiency, starting with a large amplitude of the piston motion on the diaphragm in order to increase the expressive power of the low frequency (simply speaking).However, among them, the efficiency of this speaker is low, and if you really receive the catalog specifications, I feel worried that "If it is not a considerable driving amplifier, the lack of low frequency and sharpness will be worse."Oops.Let's check this area in actual auditions.