British SUGDEN/Class A-4 Pure Class Category of MasterClass IA-4 Class [New Travel Warranty]
Input terminals: Balanced XLR group, single -end RCA group, MM singing group, a group of recording circuits. A group of fixed and adjustable front output terminals. Single -ended input sensitivity: 125mv, MM singing input sensitivity 2mv. Frequency response 14Hz-200kHz (±1DB). Frequency width 6Hz-300kHz (+3DB). Signal -to -noise ratio>100dB. Input impedance: 50k ohm. Appearance size (WHD): 430 X165X 440mm. Weight: 20 male catty .
Line input sensitivity: 125mv can
Enter sensitivity: 2MV
Supplementary power: 33W+33W (8Ω)
Frequency response: 14Hz -200kHz ±1dB
Bandwidth: 6Hz -300KHz ±3dB
Noise ratio:>100dB
With 3 sets of non -balanced lines input, 1 set of balance input, 1 group of motion head input, and 1 group of recording monitoring input terminals. The output terminal includes a group of front output, a group of recording output terminals, and 2 pairs of WBT speakers Wiring column.
MasterClass''''''''s combined amplifier also has a very good performance, that is, the low frequency is quite good. Although there is only 33W output power, the driving force and sound sense of sound, and the elasticity of the low frequency are quite surprising. No, no, no, no The machine that is not named 100 -watt output is not necessarily its opponent. During the audition process, it was also paired with Dali Helicon 400 speakers. Although it is a floor -to -ceiling box, the driver is still calm and free, and there is no "soft feet" at all. Of course, it is different from the "early sunny after the rain". The thickness of the mid -frequency is slightly diluted. The sense of transparency and quantity of high frequency has increased. The sound is also beautiful, but another flavor. However, regardless of the box, the equipment of Seton always shows the following characteristics: its sound quality is full and powerful, there is no lack of details, the sound is rich and sweet, and the music charm is full.
internal
The inside uses a large ring transformer, and the metal mask isolation noise. The overall architecture is flat and stable, and the power filter capacitance is placed next to the left and right channel amplification modules, providing a stable power supply when large dynamics.
Exterior
Because it is a pure A design, the box of the LA-4 is very huge, but the designer cleverly uses a larger button and knob layout, making the whole body feel too bulky, but gives people durable durability, but durable and durable sense.
Backboard
The IA-4''''''''s back panel terminals are readily available. In addition to the input part, in addition to a set of balanced terminals, there are also MM singing heads, the output part has the front output, and the recording output, and the speaker terminal is also very huge.
focus
① Inherit the classic A21 design of Sugden, upholds the consistent pure A tradition, and the rare pure A class in the market is a comprehensive expansion machine. ② The driving force is full, the ends of the two ends are extended, and the transparency is extremely high. ③ The distortion is extremely low, lively and not aggressive.
Suggest
① With the same series of PDT-4CD voices, it shows charming sound charm. ② Although the output power is not large, it is enough to cope with most horn in small spaces.