Manufacturer: According to "Carpathians", Ivano-Frankivsk. Passport 50 AC-022 .

Purpose and scope: For high-quality reproduction of musical and speech programs in stationary living conditions. Recommended power of high-quality household amplifier 20 - 80 W. Preferred installation option - floor. 50 AC-022 and almost identical speakers, not counting the color of the diphuzor NC, in 50 AC-022 it is white.

Specifications

3-strip outdoor speakers with a phase inverter

Frequency range: 25 (-15 dB) - 25000 Hz

Non-uniformity frequency response in the range of 100 - 8000 Hz: 8 dB

Sensitivity: 86 dB (0.39 Pa / √WT)

Resistance: 4 ohm

Minimum impedance: 3.2 ohms

Passport Power: 80 W

Short-term power: 150 W

Weight: 24 kg

Sizes (VCHHHH): 675x360x300 mm

Design features

The AC housing is made in the form of a rectangular unintended drawer made of wood stove, veneer veneer of the valuable wood. The wall thickness and front panel of the housing 18 mm. In the design of the case, elements are provided that increase its rigidity and reduction of the amplitudes of wall oscillations, in particular, a wooden strut connects the front panel and rearthe wall and located between the low-frequency head and the hole of the phase inverter.

A set of heads similar to that used in the acoustic system (by "radio engineering") - manufactured by "Carpathians", Ivano-Frankivsk. The heads are distinguished by the fact that baskets made by accurate casting from aluminum alloys have an appropriate form that allows them to apply them as decorative parts of the appearance of the AU. This made it possible in the design of the AU to refuse to apply any additional decorative linings.Mys and HF heads are installed on the front panel asymmetrically relative to the vertical axis of symmetry AU. To prevent influence on the characteristics of the air fluctuations in the housing in the housing occurring in the operation of the LF head, from the inside of the sch head is isolated from the total volume with a special hermetic plastic cap.

On the front panel of the speakers, except the heads, a hole of the phase inverter of a rectangular shape, sizes238 x 22. mm (depth 235 mm); A decorative signboard framing this hole and containing the name of the AC and its main technical characteristics. On the signboard there is a light overload indicator LED.

On a small panel located above the head of the HF, there are two regulators of the level of medium and high frequencies; Limits of adjustment of the sound pressure level of the average frequency up to -6 dB, high frequencies of ± 3 dB. The geometric sizes of the phase inverter ensure its setting to the frequency of 30 Hz.

Internal volume of speakers - 57 liters. To reduce the effect on the response of sound pressure and sound quality, the resonances of the internal volume of the body, the latter is filled with a sound-absorber, which is matte from technical wool, covered with gauze, evenly arranged and fixed on the inner walls of the case.

Inside the case on a single steel chassis, electrical filters are mounted, which provide electrical separation of the bands of the AU at low-, medium and high-frequency. Each of them is:

Filter Scheme 50 AC-022 from Passport

the low-frequency head filter is the first-order upper frequency filter, provides a decline in ACH 6 dB per octave;

the mid-frequency head filter is a first-order strip filter, provides a decline in response to the low and high frequencies of 6 dB per octave;

the filter of the high-frequency head is a low-frequency filter of the second order, provides a decline in response to the middle frequency12 of dB per octave.

The frequency of the partition between the LF and SC heads are 550 Hz, between the sch and the RF - 5000 Hz. In the design of the filters, resistors of type MLT-0.25, C5-35B, SP5-30, MBGO-2 capacitors, K50-16, inductor coils on plastic frames with air cores are applied.

On the back wall of the AU housing are special clamps with spring-loaded contacts, allowing you to connect the supply wires. On the clips of the AC indicated the polarity of the connection. Based on the AU installed four plastic legs.

Description

Acoustic system Amphiton 50As-022

Amphiton 50As-022 - 3 strip acoustic system with a phase inverter.
Release on the "Carpathians", Ivano-Frankivsk.

The speakers are intended for high-quality reproduction of musical and speech programs in stationary living conditions. Recommended power of high-quality household amplifier 20 - 80 W. Preferred installation option - floor.
The AC housing is made in the form of a rectangular unintended drawer made of wood stove, veneer veneer of the valuable wood. The wall thickness and front panel of the housing 18 mm. In the design of the case, elements that increase its rigidity and reduction of the amplitudes of the wall oscillations are provided, in particular, a wooden strut connects the front panel and the rear wall and located between the low-frequency head and the phase inverter.

A set of heads manufactured by "Carpathians", Ivano-Frankivsk, similar to the 35as-012 used in the acoustic system:

The heads are distinguished by the fact that baskets made by accurate casting from aluminum alloys have an appropriate form that allows them to apply them as decorative parts of the appearance of the AU. This made it possible in the design of the AU to refuse to apply any additional decorative linings. Mys and HF heads are installed on the front panel asymmetrically relative to the vertical axis of symmetry AU. To prevent influence on the characteristics of the air fluctuations in the housing in the housing occurring in the operation of the LF head, from the inside of the sch head is isolated from the total volume with a special hermetic plastic cap.
On the front panel of the speakers, except for the heads, a hole of the rectangular phase inverter is located, with dimensions of 238x22 mm (depth of 235 mm); A decorative signboard framing this hole and containing the name of the AC and its main technical characteristics. On the signboard there is a light overload indicator LED.
On a small panel located above the head of the HF, there are two regulators of the level of medium and high frequencies; Limits of adjustment of the sound pressure level of the average frequency up to -6 dB, high frequencies of ± 3 dB. The geometric sizes of the phase inverter ensure its setting to the frequency of 30 Hz.
Internal volume of speakers - 57 liters. To reduce the effect on the response of sound pressure and sound quality, the resonances of the internal volume of the body, the latter is filled with a sound-absorber, which is matte from technical wool, covered with gauze, evenly arranged and fixed on the inner walls of the case.
Inside the case on a single steel chassis, electrical filters are mounted, which provide electrical separation of the bands of the AU at low-, medium and high-frequency. Each of them is:
The low-frequency head filter is the first-order upper frequency filter, provides a decline in ACH 6 dB per octave;
The mid-frequency head filter is a first-order strip filter, provides a decline in response to the low and high frequencies of 6 dB per octave;
The filter of the high-frequency head is the low-frequency filter of the second order, provides a decline in ACH towards the average frequencies of 12 dB per octave.
The frequency of the partition between the LF and SC heads are 550 Hz, between the sch and the RF - 5000 Hz. In the design of the filters, resistors of type MLT-0.25, C5-35B, SP5-30, MBGO-2 capacitors, K50-16, inductor coils on plastic frames with air cores are applied.

On the back wall of the AU housing are special clamps with spring-loaded contacts, allowing you to connect the supply wires. On the clips of the AC indicated the polarity of the connection. Based on the AU installed four plastic legs.

Technical data:

- frequency range - 25 (-15 dB) - 25000 Hz;
- sensitivity - 86 dB (0.39 Pa /? W);
- non-uniformity frequency response in the frequency range of 100 - 8000 Hz: ± 4 dB;
- Harmonic distortion during sound pressure of 90 dB in the frequency range:
250 - 1000 Hz: 2%
1000 - 2000 Hz: 1.5%
2000 - 6300 Hz: 1.2%
- resistance - 4 ohms;
- the minimum impedance value of -3.2 ohms;
- Rated power - 80 W;

Size: 360x675x300 mm;
Weight: 24 kg.

Design features

The AC housing is made in the form of a rectangular unintended drawer made of wood stove, veneer veneer of the valuable wood. The wall thickness and front panel of the housing 18 mm. In the design of the case, elements that increase its rigidity and reduction of the amplitudes of the wall oscillations are provided, in particular, a wooden strut connects the front panel and the rear wall and located between the low-frequency head and the phase inverter.

A set of heads similar to the applied in the 35as-012 acoustic system (by "radio engineering") - 75GD-3, 20GDS-3, 6GDV-7, manufactured by "Carpathians", Ivano-Frankivsk. The heads are distinguished by the fact that baskets made by accurate casting from aluminum alloys have an appropriate form that allows them to apply them as decorative parts of the appearance of the AU. This made it possible in the design of the AU to refuse to apply any additional decorative linings. Mys and HF heads are installed on the front panel asymmetrically relative to the vertical axis of symmetry AU. To prevent influence on the characteristics of the air fluctuations in the housing in the housing occurring in the operation of the LF head, from the inside of the sch head is isolated from the total volume with a special hermetic plastic cap.

On the front panel of the speakers, except for the heads, a hole of the rectangular phase inverter is located, with dimensions of 238x22 mm (depth of 235 mm); A decorative signboard framing this hole and containing the name of the AC and its main technical characteristics. On the signboard there is a light overload indicator LED.

On a small panel located above the head of the HF, there are two regulators of the level of medium and high frequencies; Limits of adjustment of the sound pressure level of the average frequency up to -6 dB, high frequencies of ± 3 dB. The geometric sizes of the phase inverter ensure its setting to the frequency of 30 Hz.

Internal volume of speakers - 57 liters. To reduce the effect on the response of sound pressure and sound quality, the resonances of the internal volume of the body, the latter is filled with a sound-absorber, which is matte from technical wool, covered with gauze, evenly arranged and fixed on the inner walls of the case.

Inside the case on a single steel chassis, electrical filters are mounted, which provide electrical separation of the bands of the AU at low-, medium and high-frequency. Each of them is:
the low-frequency head filter is the first-order upper frequency filter, provides a decline in ACH 6 dB per octave;
the mid-frequency head filter is a first-order strip filter, provides a decline in response to the low and high frequencies of 6 dB per octave;
the filter of the high-frequency head is the low-frequency filter of the second order, provides a decline in ACH towards the average frequencies of 12 dB per octave.

The frequency of the partition between the LF and SC heads are 550 Hz, between the sch and the RF - 5000 Hz. In the design of the filters, resistors of type MLT-0.25, C5-35B, SP5-30, MBGO-2 capacitors, K50-16, inductor coils on plastic frames with air cores are applied.

On the back wall of the AU housing are special clamps with spring-loaded contacts, allowing you to connect the supply wires. On the clips of the AC indicated the polarity of the connection. Based on the AU installed four plastic legs.

Acoustic system "Amphiton 50As-022"

Acoustic system "Amphiton 50As-022 / 100As-022" (1986)

Three-band acoustic system Amphiton "" 50As-022 "", she is Amphiton 100As-022 ""It is intended to play sound programs from high-quality household amplifying equipment.

Plant Manufacturer of Ampoutic Systems Amphiton "" 50As-022 "" - Carpathian radio production (in Carpathians) G.Ivano-Frankivsk (produced since 1986).

Acoustic systems Amphiton "50As-022" and amphiton "100As-022" are fully identical and have the same power. Of the essential differences, you can note only the different color of the dynamics of the dynamics. At Ace Amphiton "50As-022" it has a white color, and As Amphiton "100As-022" is black.

Heads:

With the help of passive separation filters, the entire range of frequencies of the amphiton speaker system "" 50As-022 "" is divided into 3 bands, each of which is reproduced by its head.

In the acoustic system Amphiton "" 50As-022 "" has been installed three heads:
- low-frequency type 30GD-11 (75GDN-3),
- mid-frequency type 15GD-11 (20GDS-3),
- High-frequency type 6GDV-7.

Features:

A distinctive feature of this AC is the application in the "50As-022" version of the low-frequency dynamics with a white diffuser, due to which it is easy to learn among the models of similar acoustic systems. In addition, the standard dynamic heads were made by the Carpathian radio production specifically for these acoustic systems. The difference between these heads from serial models is that their baskets are made by accurate casting from aluminum alloys and have a special form that allows them to apply them as decorative parts of the appearance of the AU.

The housing of the amphiton acoustic system "" 50As-022 "" (35as-218) is made in the form of a phase inverter.

AS Amphiton "" 50As-022 "" has two attenuator to change the level of sound pressure of medium and high frequencies. Regulators are placed on a small panel located above the head of the HF. Regulation limits are 6 dB for medium frequencies and 3 dB for high frequencies.

Basic specifications:
Rated power, W .............................................. ..... fifty*.
Maximum power, W .............................................. ... 80.
Range of reproducible frequencies, Hz ..................... 25 ... 25000.
Nominal sound pressure (100 ... 4000 Hz), Pa ............ 1,2.
Nominal electrical resistance, Ohm ................... 4.
Dimensions, mm ........................................................... .......... 675x360x300.
Mass, kg ............................................... ................................... 24.

(* In all official directories, this AU indicates the value of the rated power equal to 50 watts. In fact, the rated power of this AU is 25 watts.)

The non-uniformity of the frequency response at the bottom bound frequency of the reproducible frequency range relative to the level of the middle sound pressure is -15 dB.

The level of characteristic sensitivity of at least 86 dB.

The uneven sound pressure in the frequency range is 100..8000 Hz is ± 4 dB.

Housing :

The case of the Amp Amphiton "" 50As-022 "" is made in the form of a rectangular unintended drawer made of wood-sized plate, which blend the veneer imitating wood. The thickness of the walls of the housing is 18 mm, the front panel is also made of only 18 mm thick stove. The internal volume of the housing is 57 liters. To reduce the effect of resonances internal volume, the housing of the speakers is filled with a sound absorber. To increase the rigging in the case design, a wooden strut connects the front panel and the rear wall.

The phase inverter is configured to a frequency of 30 Hz.

Separate filter:

The frequency of the section: between the heads of the LF and SC - 550 Hz, between the heads of the sch and HF - 5000 Hz. In the design of electric filters, resistors of type MLT-0.25, C5-35B, SP5-30, capacitors - MBGO-2, inductors - on plastic frames without cores are applied.
- the low-frequency head filter is the first-order upper frequency filter, provides a decline in ACH 6 dB per octave;
- the mid-frequency head filter - the first-order band-band filter, provides a decrease in the ACH in the direction of low and high frequencies of 6 dB per octave;
- The high-frequency head filter is the low-frequency filter of the second order, provides a decline in response to the average frequency of 12 dB per octave.

Comparison of speakers:

AS Amphiton "" 50As-022 "" Compared from the AC "S-90" have more compact sizes, and a slightly smaller mass, but a similar LF head.
AS Amphiton "" 50As-022 "" actually have less rated power and occupy a lower position in relation to with "S-90".

With a blind test, the sound of the Amp Amphiton "" 50As-022 "" can be distinguished from the sound of the older model - AS Amphiton "" "35As-018" ", as well as from the sound of the AU" "S-90". Direct comparison of AS Amphiton "" 50As-022 "" and "" 35as-018 "" will show a slightly different character of the sound of the speakers.

Subjectively sound AS Amphiton "" 35As-018 "" more powerful and energetic. And at the same time, a much more detailed account, in the field of sound guitars and vocals. For complex genres - rock, metal - they will be preferable.
For light instrumental genres, AC Amphiton "" 50As-022 "may be preferable. Her bass is a soft, medium frequencies have more cereals, but sound richer, highly a little more bell. Also Amp Amphiton "" 50As-022 "" is well coped with electronic music (not dragging, but music).
All of the above has absolutely subjective. The differences between the two speakers are minimal and at a blind dough with a pause of 20-30 minutes, they are almost impossible to identify.

Although Ace Amphiton "" 50As-022 "", according to the author, inferior to the crash of the AU "" S-90 "", it undoubtedly has a more original appearance and significantly better build quality. In addition, the target manufacturer of the heads specifically for Amp Amphiton "" 50As-022 "" led to the spread of the opinion that these heads have a higher quality and smaller variation of the characteristics compared with the major versions.
Also data AC are the only serial Soviet ACs with white diffusers. They definitely deserve places on the collector shelf.

Currently, AC Amphiton "" 50As-022 "" is sold at an inflated value compared to similar AU models. This is in no way compensated for by any advantages in their sound.

LF and SC System Heads "" 50As-022 "" as well as similar heads at Amp Amphiton "" 35As-018 "" were manufactured using foam foam suspensions, which is 20 ± 5 years. With long-term contact with the suspensions of direct sunlight, their service life is reduced to 7-10 years.

With comparable with Amp Amphiton "" 35As-018 "or higher cost and similar problems with the restoration of foam foam suspensions, the purchase of AS Amphiton" "35As-018" seems more preferable. Of course, only if the speakers are planned to be used for listening.

Restoring AS Amphiton "" 50As-022 "":

Currently, the purchase of suspensions does not represent any complexity. Taking into account the postal expenses, a set of two LC and the two hours, the speaker will cost 1000-1500 rubles, taking into account the cost of sending. Repair is quite painstaking and requires extreme care and accuracy that it is far from every way.

Recommended for Amp Amphiton "" 35As-018 "" The way with a complete replacement of the heads to similar heads with rubber suspensions (see the article about Amp Amphiton "" 35As-018 ") in this case is not acceptable, because Heads have a different design of baskets. In addition, non-relocated heads are the main advantage of the AU data.

Therefore, if you wish, it is AS Amphit "" 50As-022 "" "" 50As-022 "by Amphiton" "50As-022" "with" "killed" "suspensions and their subsequent replacement may be the only option. I repeat, repair is quite painstaking and requires marginal care and accuracy that it is far from every way.