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 規格及資料】

• 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)

可直接向本公司購買:

1) 請聯絡CNA MUSIC LIMITED購買熱線26044802，確定存貨。

2) 把現金存入本公司提供的HSBC香港匯豐銀行。

3) 帶同存款收據到本公司取貨即可。

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又可以看看日本Elekit如何加上精美金屬盒。

https://translate.google.com/translate?hl=zh-TW&sl=ja&u=https%3A%2F%2Fvoice.elekit.co.jp%2Farchives%2F5351&prev=search&pto=aue

Elekit 使用之金屬盒，在香港可以買得到。

Takachi Electric Industrial YM-150
https://hkcn.rs-online.com/web/p/desktop-enclosures/3732255/

Takachi Electric Industrial YM-130
https://hkcn.rs-online.com/web/p/desktop-enclosures/3732249/

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