Rose electronics RA180, Owner'S Manual

Page: 10 / 33

- 18 - - 19 -
2. Rear Side of the Product
Input Source
Selector
Main Volume Front LED
Brightness
Control Switch
Subsonic
Switch
Attenuator
Switch
Source Level Meter
Volume
Level
Indicator
Power Input
Turntable Input
BTL Mode Right Speaker Output Port
Tone Control Function(Preamplifier)
❺
Power
Button/
Status
Display LED
❹
Power
Breaker
Release
Switch
❹
❺
❻
❽ ❾
❻ ❼ ❽
❾
❿ ⓫
❿
⓫ ⓬
⓭
Bypass·Power
Amplifier
Mode Switch
❸
❸ ❸
Speaker
A/B
Selector
❷
Balanced Input
❷
❶
Turntable
Grounding
❶
Phono Amplifier EQ H/F Crossover Function
Unbalanced
Input
Turntable Cartridge
Selection Switch
BTL Mode Selection Switch IR Receiver
Port
Ground Port Subwoofer
Output
BTL Mode Left Speaker Output Port
Operation
Switch
Trigger Input
Terminal
❼
1 Turntable Grounding When connecting the turntable, connect the ground line to reduce noise.
2 Balanced Input This is a port that receives a balanced input (XLR) from an external source device, and the input sensitivity is 2 Vrms.
3
BTL Mode Speaker
Output Port
By combining four mono amplifiers into two amplifier blocks, a 400 W (8 Ω) output per channel is possible.
4
Power Breaker
Release Switch
(Adopting a circuit
breaker)
In order to improve the conductivity of the input electricity, a power circuit breaker was employed, and the sound quality
resolution was improved by securing a wide passage for the input electricity.
5 Power Input Port
By adopting a Furutech terminal milled from pure copper optimized for audio, it transmits the input electricity without
disturbing the purity.
6 Turntable Input
This is a port that receives RCA input from an external turntable device, and the input sensitivity is 5 mV in MM mode and 0.5
mV in MC mode.
※ The phono (MM/MC) signal device is a device that receives a low audio signal and sends it out with a high output, so it is greatly
affected by the signals of nearby external devices. Therefore, it is recommended that router devices such as Wi-Fi routers be kept at
least 3 m away from this product.
7 Unbalanced Input This is a port that receives RCA input from an external source device, and the input sensitivity is 1 Vrms.
8
Turntable Cartridge
Selection Switch
Changes the gain level of the equalizer amplifier. (Amplifier circuit required to reproduce analog records)
• MM: Select an MM (moving magnet) cartridge with high output voltage.
• MC: Select an MC (moving coil) cartridge with low output voltage.
※ If you select MC while using an MM cartridge, you must be careful because the impedance increases the volume and produces
an unbalanced sound without a high frequency.
※ The MC cartridge input signal is designed based on 0.5 mV. If you are using a turntable with a smaller output than this value,
you may need to connect a separate step-up transformer. (A step-up transformer is not supplied with this product.)
9 Subwoofer Output
This provides a rich low-pitched listening environment by connecting with an active subwoofer unit.
※
Only active subwoofers (with separate built-in amplifiers) are compatible.
10
BTL Mode Selection
Switch
You can output three speakers with the BTL mode selection switch.
• BI-AMP(A) / BTL(B) - A Speaker: Full Range L/R + Tweeter L/R output
B Speaker: BTL L/R output
• OFF: Full Range L/R + Tweeter L/R output for both A/B speakers
• BTL: BTL L/R output for both A/B speakers
11
Trigger Input
Terminal
This receives a 12 V trigger signal from a source device (DAC, CD player, turntable, preamplifier, etc.) and switches to the
power-on state.
※
See page 38 for details.
12 IR Receiver Port You can extend the operating range of the IR remote control by connecting the supplied IR receiver extension cord to this port.
13
Ground Port( )
This is a port that connects the external device to the ground.