SYNTHESIS ROMA 37DC+

Pre owned, as new.

Hybrid integrated stereo amplifier combining a 6DJ8 tube input stage with a Class D amplification module, designed to bring together dynamics, precision and natural sound reproduction. Its rated output of 450 W per channel allows it to handle complex musical passages with speed and control, maintaining an articulate presentation and good definition even during the most demanding passages.

The tube stage contributes to the character of vocals and instruments, while the Class D output stage provides high dynamic capability. The balance between these two technologies aims to deliver transparency, detail and a wide soundstage, avoiding an excessively dry presentation.

The digital section features a USB Type-B input and an optical input, supporting DSD files up to 5.6 MHz and a stated resolution of up to 32 bits. These connections allow compatible digital sources to be connected, enabling music playback with a good level of detail and precise spatial reproduction.

The ROMA 37DC+ also features a dedicated MM phono stage for connecting a turntable fitted with a moving-magnet cartridge. This section expands the amplifier's versatility, allowing analogue and digital sources to be integrated into the same system.

Technical specifications:

• Circuit design: Hybrid tube and solid-state
• Output stage: ICEpower Class D module
• Input tubes: 1 × 6922/ECC88 per channel
• Input impedance: 50 kΩ
• Input sensitivity: 200 mV for maximum power
• Output impedance: 4–16 ohms
• Output power: 250 W per channel into 8 ohms; 450 W per channel into 4 ohms (THD < 1%)
• Frequency response: 20 Hz–20 kHz (±0.5 dB)
• Signal-to-noise ratio: > 90 dB (A-weighted)
• Analogue inputs: 2 line inputs; 1 MM phono input
• Digital inputs: 1 USB Type-B; 1 Toslink optical
• D/A converter: AK4495SEQ, 32 bit / 768 kHz
• Maximum digital resolution: Optical input 24 bit / 192 kHz; USB 32 bit / 384 kHz; DSD up to 5.6 MHz via USB
• PC requirements: 1 GHz processor; 512 MB RAM; USB 2.0 port
• Remote control: Infrared, RC5 protocol
• Remote control functions: Volume; mute; input selection; standby
• Power supply: 117 / 230 / 245 V AC, 50/60 Hz (refer to the rear panel label)
• Fuse: Refer to the rear panel label
• Remote control material: Black anodised aluminium
• Remote control batteries: 2 × CR2032
• Dimensions (W × D × H): 41 × 39 × 9.5 cm
• Weight: 10 kg