- ページ 6

アンプ AC-AUDIO Tube G52 ProのPDF ユーザーマニュアルをオンラインで閲覧またはダウンロードできます。AC-AUDIO Tube G52 Pro 11 ページ。 2 channel tube preamp

Tip = Signal Phase ("+" or "hot"),

Ring = Ground.

The equipment utilizes good quality screened cable, particularly for microphone or low

level sources, So that hum or noise cannot be picked up.

Refer to Figure 2 for rear panel connector identification.

3.4 Instrument Inputs.

On the front panel, each channel has a high impedance (1Mohm) 0.25" instrument

jack socket (see Figure 1). A 2 pin (mono) jack plug is required, which should be wired as

the following way:

- Tip = Signal Phase ("+" or "hot"),

- Screen = Ground.

On the rear panel, the line outputs are via 3 pin TRS jack sockets and may be

configured for balanced or unbalanced connection. Balanced operation is always

preferable to maintain maximum headroom and signal to noise ratio, but can only be

used if the following equipment is also capable of balanced operation:

Balanced outputs:

- Screen = Ground,

- Tip = Signal Phase ("+" or "hot"),

- Ring = Signal Non-Phase ("-" or "cold").

Unbalanced outputs:

- Screen = Ground,

- Tip = Signal Phase ("+" or "hot"),

- Ring = Ground.

A switch on the rear panel allows the line inputs and outputs to be matched to

equipment at a nominal operating level of +4dBu or -10dBu. Most professional

equipment requires +4dBu (approximately 1.2V rms), but some small mixing consoles or

portable tape recorders require -10dBu (approximately 225mV rms). If the operating

level is not known, the switch should be set to the position which results in the best signal

to noise ratio, whilst preserving sufficient headroom.