Phono Equalizer Amp [ PS-3250 ]

 

Phono Equalizer Amp [ PS-3250 ]

超值、細小之RIAA均衡器(唱頭放大器)套件

Tools required (需要工具): Diagonal Cutter (剪線鉗)， Soldering Iron (烙鐵 / 焊接辣雞)

OUTLINE

• This is an RIAA turntable preamplifier to convert a turntable’s phono-level output to an RIAA-equalized line-level signal, supporting both MM and MC cartridges by changing a jumper location on the PCB.
• For OP-amp, a low-noise NJM2068DD is adopted. 
• In addition, for the electronic parts, ±1% tolerance metal oxide resistors and ±2％ tolerance film capacitors are adopted to realize small RIAA deviation and low noise.
• For the equalizer circuit, CR type is adopted and there is no concern for the deviation of equalizing characteristics even when OP-amp is exchanged.
• A positive and negative voltage generating circuit is on-board for the power unit, and high quality sound and wide dynamic range are secured by supplying ±15V for OP-amp.
• POP noise suppressor upon power ON/OFF is on-board.
• In an equalizer amp, the noise level, especially the hum noise, depends largely on the IN/OUT wiring and the grounding location. (Therefore, for this kit, IN/OUT jack and grounding bracket to fix those parts to the PCB are included.)

產品概要

• 這是RIAA標準唱盤放大器，用於將唱盤電平輸出轉換為RIAA電平信號，支援MM和MC唱頭。
• 採用低噪聲NJM2068DD之運算放大器。 
• ±1％的金屬氧化物電阻及±2％的薄膜高級電子電容，以實現較小的RIAA偏差和低噪聲。
• 具有優異瞬態特性CR型均衡電路，即使更換運算放大器也不必擔心均衡特性有偏差。 
• 電源電路板上帶有正負電壓，運放提供±15V的電壓，確保高質量的聲音和寬動態範圍。
• 內置電源開/關時的『POP』噪聲抑制器。 
• 固定IN / OUT插孔與接地到PCB(底版)上，解決放大器之噪聲水平，尤其是『hum noise / 嗡嗡聲』。

SPECIFICATIONS (產品規格)

• Corresponding cartridge : MM (Approx. 47kΩ), MC (Approx.100Ω or 30Ω)
• Circuiting system : CR equalizer (RIAA), OP-amp dual amplification
• RIAA deviation : Within ±0.5dB (20-20kHz)
• Gain (@1kHz) : 27dB(MM, LOW-G), 32dB(MM, MID-G), 36dB(MM, HIGH-G) 56dB(MC, LOW-G), 62dB(MC, MID-G), 65dB(MC, HIGH-G)
• Non-clip max. output (@1kHz) : 9V r.m.s.
• Power voltage : DC 5-12V
• Power consumption (OP-amp: NJM2068DD) : 100mA(5V), 30mA(12V)
• PCB dimensions : 100 x 80 mm

Price: JPY 5,500 (日元)

地址: 九龍新蒲崗大有街29號宏基中心1104室 (鑽石山港鐵車站A2出口步行大約6分鐘，大有街與八達街交界)

查詢: 26044802

http://www.cnamusic.com/