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\ product information | \ \\| \ \ | \ \\| Parameter | \.Model: S175
\.Input: XLR balanced（International standard）
\.Output power: Class A 175W( 8 Ω); 350W (4 Ω); 700W (2Ω)
\.Sensitivity: +6dB (2Vrms XLR)
\.Frequency response: 10Hz~100KHz +0/-0.5dB
\.Distortion: <0.1%
\.Signal to noise ratio: better than 100dB
\.Power consumption: 550W
\.Power supply voltage: AC ~230V/50Hz (AC 210~240V)
\.Size: DWH 520X482X260(mm)
\.Weight: 58 (kg) | \ \\| \ \ | \ \\| Technical characteristics | \S175 is a pure flute NO1 grade product, using the following technologies:
\ 1. Class A design, almost no distortion. It is an ideal choice for replaying music, it can provide a very smooth sound quality, mellow and warm tone, transparent and open treble.
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\ 2. S175 is a monaural power amplifier with current negative feedback circuit and a fully balanced frame inside.
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\ 3. Each channel adopts 4 pairs of Japanese position effect tubes 2SK214/2SJ77 as a drive to ensure the stability of current output.
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\ 4. Pure flute customized Sanken 2SC3856/2SA1492 20 pairs per channel（40 in total）As an output, it ensures that the amplifier can produce a large current output capacity at any time, while reducing the output impedance.
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\ 5. The power supply of this machine has an independent control transformer, and the front voltage amplifier transformer. Two 550W transformers are used as the main transformer, and the other two 550W large inductors are used to improve the large current output capacity and improve the rectification efficiency of the transformer. In order to reduce the impact of transformer vibration and magnetic leakage on sound purity, double-layer shielding and epoxy resin are used.
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\ 6. Use a 2-level buffer circuit to reduce the impact on the AC power supply.
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\ 7. There is a complete protection system, including input DC protection, output midpoint protection, output overcurrent protection, temperature control and protection of static power（Minimize the impact of ambient temperature on sound）,Overheating protection. At the same time, the protection system is divided into two levels of processing. For short-term overload protection, automatic recovery processing is adopted, and for long-term or serious problems, the power supply is cut off.
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\ 8. In order to prevent the fuse from affecting the high-current power amplifier, use a thermal relay for protection.
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\ 9. The aluminum alloy case is machined by CNC to improve the appearance of the product. | \ \\| \ \ | \ \\ \\| Precautions | \1. S175 is a high-power electrical appliance. Please check whether the power plug is in good contact before use. Loose contact may cause the plug to spark and cause electrical safety issues and damage to the equipment.
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\ 2. Please check whether the signal cable and speaker cable are firmly plugged before starting the machine. It is strictly forbidden to plug and unplug the cable when the machine is turned on.
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\ 3. The start-up uses a 2-level buffer start to reduce the impact on the AC power supply, but please try to reduce the switching frequency of the machine, and the interval between switching machines should be more than 2 minutes.
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\ 4. In order to make the machine quickly enter a stable working state, the quiescent current is relatively large when it is turned on, so the current noise is also relatively large. After 20 minutes in summer and 30 minutes in winter, the machine enters a stable state.
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\ 5. The machine has a complete protection system, but try not to keep the machine in a protected frequent start state, because the protection start is caused by the machine working beyond the design safety range. This machine is divided into two levels of protection, and adopts self-recovery mode for small over-range work. For large over-range working conditions, self-locking protection is used to cut off part of the power supply. At this time, the indicator light on the panel is off. After the manual shutdown is required, the cause of the protection is identified and eliminated before restarting.
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\ 6. The power of the machine is relatively high. When placing it, leave enough space for heat dissipation. Leave more than 10cm of space around and more than 20cm of space on the top. | \ \\| \ \ | \ \\| Manual download | \ | \ \ \ \ | \
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