Rose electronics RA180, Руководство пользователя

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1 Tone Control
• TREBLE: Controls the frequency characteristics of the high frequency range. When the knob is set to the center position, a flat
frequency characteristic is obtained. Turning it clockwise enhances the high-frequency range, and turning it counterclockwise
attenuates the high-frequency range.
• BASS: Controls the frequency characteristics of the low frequency range. When the knob is set to the center position, a flat
frequency characteristic is obtained. Turning it clockwise enhances the low frequency range, and turning it counterclockwise
attenuates the low frequency range.
• BALANCE: Adjusts the volume balance between the left and right channels. Moving this switch to the left in frontal reference
increases the left sound volume and moving it to the right increases the right sound volume. This switch should be set to the
center position under normal conditions.
※ The bass and treble knobs and the balance switch do not work when the bypass·power amplifier mode switch
is turned on.
※ When the preamplifier is set to BYPASS, the bass and treble knobs other than the balance switch do not work.
※ Please refer to pages 50 - 53 for details.
2 Speaker A/B Selector Two sets of speakers can be connected, and the speaker can be selected by adjusting the switch.
3
Bypass·Power
Amplifier Mode
Switch
When activated, the input signal bypasses the preamplifier stages such as balance, tone control, active crossover, and
volume, and operates in power amplifier mode.
※ However, if the input signal is high, it may damage the speaker. Be sure to reduce the input signal before use.
※ To use this function, the source device must be connected to LINE 3.
※
Please refer to page 46 for details.
4
Power Button /
Status Display LED
When the power button is pressed, the LED blinks, and when booting is complete, the LED turns off.
※
If there is no input signal for more than 1 hour, the power of this product is automatically turned off. If it is turned off
automatically, turn it on again with the power button on the main body or the power button on the remote control to use it.
(You can set the time in the automatic power off (APO) function of the mobile app.)
5
Input Source
Selector
Selects the input of devices such as DACs, CD players, and tuners connected to each input on the rear side. The input
selector is compatible with a total of five external inputs: three line inputs, one balanced input, and one phono input. It is
also driven by an electric motor, so it can be controlled remotely.
6
H/F Crossover
(High Frequency)
Enables clear treble sound reproduction by specializing and outputting only the high-frequency range and removing the low
frequency range
• HPF: Cuts the frequency characteristics in the range of 600 ㎐ - 6 ㎑ and outputs the high-frequency range of the reference
frequency excluding the low-frequency range of the reference frequency. Applies characteristics only to H/F speaker output
when BTL mode is not used. It limits the amplifier’s amplification range, which is good for clear treble sound reproduction.
• GAIN: Adjusts the gain of the area set by HPF. You can adjust the treble to suit your listening environment. The active crossover
function does not work when the Bypass·Power Amplifier Mode Switch switch is turned on or H/F crossover is set to BYPASS.
If the H/F crossover is BYPASS, the output ranges are set to 20 ㎐ - 50 ㎑, 80 ㎑@-3 ㏈, and 100 ㎑@-6 ㏈, allowing the
speaker to run in biamping mode.
※ Please refer to pages 54 - 57 for details.
7 Phono Amplifier EQ
This unit is equipped with a phono amplifier compatible with MM/MC cartridges, enabling high-level analog record playback by
connecting only a turntable.
EQ Setting Characteristics Table
(of Some Representative Manufacturers)
Manufacture Turnover Roll-off. (10kHz / dB)
RIAA 500Hz -13.7
Decca LP 500Hz -13.7
TELDEC/AES 500Hz -11
NAB 500Hz -16
Columbia LP 500Hz -16
CCIR 300Hz -11
European 78s 300Hz FLAT
American 78s 300Hz -5
Columbia 78s 300Hz -16
8 Main Volume The main volume is driven by an electric motor and can be adjusted remotely.
9
Front LED Brightness
Control Switch
Adjusts the brightness of the light on the front of the product in 3 steps.
10 Subsonic Switch
Cuts off ultra-low frequencies to prevent extra-low frequencies from negatively affecting the speaker when the switch is on.
This function is especially effective when the record on the turntable around the speaker vibrates or the woofer shakes due
to the ultra-low frequency vibration of the speaker.
※ When the bypass·power amplifier mode switch is set to ON, this switch does not work.
※ Please refer to page 58 for details.
11 Attenuator Switch
Reduces the amount of output volume to a minimum level.
This function is effective when you want to quickly turn down the volume when listening at a high volume, or when there is
a risk of a shock sound from the speaker when changing the input selector.
※
When the bypass·power amplifier mode switch is set to ON, this switch does not work.