What kind of speakers should the music fax A1000 amplifier be equipped with?

This article is mainly about the matching of music fax A1000 power amplifier speakers. I hope this article can help you.

What kind of speakers should the music fax A1000 amplifier be equipped with?

Music fax A1000 is a pure class A power amplifier, output power: 50WX2, output impedance: 8 ohms. The music style to adapt is relatively wide, and the adaptation to the speaker type is better. The specific speaker selection depends on the style of music you prefer. The following will talk about the matching of the music fax A1000 amplifier speaker based on the author’s preference.

The author's first contact with music facsimile was naturally in the previous audio magazine. At that time, the gun text was fascinating for the A1000 machine, just like the posture of a paid Rolls Royce, which is indeed desirable.

So more than 5 years ago, after a few small attempts to DIY IC power amplifiers such as 2030 and 3886, with a little joy of success, the author decided to try to imitate the music fax A1000. Looking back, this idea is really a new-born calf not afraid of tigers.

At that time, I was fortunate enough to find Lao Liu from Shandong "Feilong Audio" on the Internet and bought a set of boards. And generally consulted the chassis and power requirements. After a small bargain, the auction price is paid. After that, I scoured the chassis, ring cows, and accessories.

After waiting for a few days, the board and various peripheral accessories were all together. Lao Liu's board is indeed well made. According to the habit, first connect it with a small power supply and listen to whether the board can sound normally before continuing. To be honest, although it was just an experiment, I was fascinated by the sound. The sound is full, the timbre is warm and bright, and the musical aura is coming... This is indeed an experience that has not been experienced before using the Japanese AV amplifier, the domestic HiFi amplifier, and the self-made IC amplifier.

So I can’t wait to install it. Only then did I realize a lot of trouble.

First of all, the iron and aluminum chassis, a bunch of accessories, all assembled in place, is already a trouble. This kind of chassis is cost-effective and has a large internal space, so it is a common choice for many DIY novices and veterans. But the trouble is that it needs to be installed step by step in the correct order. The correct order varies with the specific power amplifier board, wiring, and peripheral requirements. In the case of inexperience, it may be repeated 5-10 times to find out clearly. In the meantime, a lot of time and energy spent, come to know.

Secondly, the big trouble with the installation of A1000 lies in the tight installation of the heat sink. Lao Liu's finished board uses a toss-resistant Motorola gold sealing tube, so it is equipped with angle aluminum, which saves a lot of things. However, the angle aluminum and the heat sink of the chassis must be tightly combined to fully dissipate heat. Here comes the real test: both the angle aluminum and the heat sink must have holes and they must be aligned so that they can be bound by bolts. In the amateur conditions, I only rely on a hand-made electric drill...

In my memory, I don't know how many holes were opened and scrapped, and after many hours of tossing, I finally barely bound the angle aluminum and the heat sink together.

The trouble is still not over. This kind of general-purpose chassis, ring cow, power supply board, front-end board, etc., do not have ready-made suitable holes for fixing. Ever since, if you continue to use the electric drill to open the iron plate, it will be easier for the drill bit to go wrong, so you can only patiently work harder. In the writing, even I admire the vigor when I was young! In retrospect, I can see why a power amplifier would rather cost money and make shells in batches.

It is finally ready to be installed. But the trouble is still not over. During the installation process, various wire cutting, arrangement, various welding, various screw installation, dislocation, rework, all kinds of toss...

In retrospect, when the first machine was opened, it was streamlined to the greatest extent because it followed the habit of "providing provinces" of DIY novices. The typical method of a combined machine is that the 400W ring cow supplies power to the front and rear stages, and the front board is simply installed on the top cover to maximize the use of space. But in fact, the installation difficulty and trouble are the highest. When I think about it, I feel hot and sweaty.

I don’t know how many days of spare time it took, but it’s finally installed! Before starting the machine, carefully check the correctness of the connection with a multimeter. Then with a nervous and excited mood, I pressed the power button...

Fortunately, the music is gushing out, and the sound is pretty good! Warm, bright, and clear, it was already a pleasant surprise at that time. So I just connected the self-made XT25+8545 speakers and played some pop songs. I really enjoyed it...

According to the legend, the heat of the Class A machine is indeed well-deserved. After listening to it for about half an hour, the heat sink is already around 50 degrees. There was a dilemma, so I consulted Lao Liu and said that it is normal and not to worry. So continue. In my memory, this machine, in summer, may reach a temperature of about 60 degrees at most, which is already relatively hot. Although it is hard to be at ease in my heart, it is indeed durable and has been without problems. It is a blessing to think about it in retrospect.

In the process of making the sound of the author, this A1000 was the first to explore the stage of original production of HiFi speakers. During the stage, I also had contact with the entry-level EL34 tube amplifier and the counterparts imitating the Gaowen 27+29 machine. This A1000, at that time, was the one with the most comprehensive sound performance among the power amplifiers I was in contact with at the time. So in the early stage, as the main audition with power amplifier, and 3 or 5 sets for fans in need.

Looking back objectively, although this machine still has a lot of potential to be tapped, the production and tuning are rough, but the performance of general vocal pop songs is quite satisfactory and has a certain sense of beauty. It is already considered as a DIY machine that can withstand the test of affordable power amplifiers.

Conclusion

This is the end of the introduction about the matching of the music fax A1000 power amplifier speaker. Since this article is based on the author's preference, it is for reference only. Please correct me if there are any deficiencies.

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