SPL Phonos Duo (Red)

The SPL Phonos duo Red is a high-performance RIAA phono preamplifier crafted for Moving Magnet (MM) and Moving Coil (MC) cartridge systems. Built with SPL VOLTAiR technology and the Douglas-Self RIAA filter, it delivers superb sound precision and depth. Featuring balanced (XLR) and unbalanced (RCA) inputs and outputs, it offers seamless integration with high-fidelity audio components.

The Phonos duo Red includes six selectable capacitance settings for MM and six adjustable impedance options for MC, providing optimal cartridge matching. Key features include a subsonic filter for rumble reduction, a Mono switch for mono records, and a Ground Lift switch for removing ground loops. Finished in a bold red design, it brings both style and performance to your vinyl listening experience.

High-end RIAA phono preamp for turntables with MM (Moving Magnet) and MC (Moving Coil) cartridge systems

Balanced (XLR) and unbalanced (RCA) inputs/outputs for versatile connectivity

Six selectable capacitance values for MM: 12 pF, 47 pF, 100 pF, 150 pF, 220 pF, 330 pF

Six selectable impedance values for MC: 20 ohm, 50 ohm, 100 ohm, 220 ohm, 500 ohm, 1000 ohm

VOLTAiR Technology (120V) for exceptional dynamic range and ultra-low noise

Douglas Self RIAA filter design for precise frequency response

Three gain settings for MM: 30 dB, 40 dB, 50 dB

Three gain settings for MC: 50 dB, 60 dB, 70 dB

Subsonic filter to eliminate low-frequency rumble from turntable mechanisms

Ground lift switch for eliminating ground loops

Mono switch for mono playback of stereo records

Mute switch for instant output silencing

Gold-plated RCA connections for optimized signal transfer

Ground connection with banana plug socket for secure grounding

Internal Linear Power Supply with shielded toroidal transformer

Frequency Range: 10 Hz " 100 kHz, Crosstalk: -80 dBu

GENERAL SPECIFICATIONS:

• Model Name: Phonos duo

• Color: Red

• SKU: 2454

• Model #: 2454

• Category: Professional Fidelity

• Type: RIAA Phono Preamplifier

• Cartridge Compatibility: Moving Magnet (MM) and Moving Coil (MC)

• Inputs: 2 pairs of stereo inputs (1 x Balanced XLR, 1 x Unbalanced RCA)

• Outputs: 2 pairs of stereo outputs (1 x Balanced XLR, 1 x Unbalanced RCA)

• Technology: SPL VOLTAiR technology with RIAA filter in Douglas-Self design

ADJUSTMENT OPTIONS:

• MM Capacitance: 12 pF, 47 pF, 100 pF, 150 pF, 220 pF, 330 pF

• MC Impedance: 20 ohm, 50 ohm, 100 ohm, 220 ohm, 500 ohm, 1 kohm

AMPLIFICATION SETTINGS:

• MM Preamplifier Gain: Low +30 dB, Medium +40 dB, High +50 dB

• MC Preamplifier Gain: Low +50 dB, Medium +60 dB, High +70 dB

AUDIO PERFORMANCE:

• Frequency Range: 10 Hz " 100 kHz

• Crosstalk: -80 dBu

• Output Impedance: 75 ohm

• MM Noise (A-weighted, 50 dB amplification): -82 dBu

• MM Dynamic Range (50 dB amplification): 132 dB

• MC Noise (A-weighted, 70 dB amplification): -62 dBu

• MC Dynamic Range (70 dB amplification): 129 dB

POWER SUPPLY:

• Internal Linear Power Supply with Shielded Toroidal Transformer

• Operating Voltage for Analog Audio: +/- 60 V

• Operating Voltage for Relays and LEDs: +12 V

• Mains Voltage: Selectable 230 V AC / 50 Hz or 115 V AC / 60 Hz

• Power Consumption: Maximum 30 VA

• Standby Power Consumption: Less than 0.3 W

PHYSICAL SPECIFICATIONS:

• Dimensions: 11 in (W) x 2.24 in (H) x 11.81 in (D)

• Unit Weight: 7.27 lbs

• Shipping Weight (with packaging): 9.81 lbs

• Box Dimensions: 21.26 in (W) x 4.72 in (H) x 14.96 in (D)

IDENTIFICATION:

• GTIN: 4260149320544

ADDITIONAL FEATURES:

• Switchable Mono Mode for playback of mono records

• Mute Switch for instantly muting all outputs

• Subsonic Filter to remove turntable rumble

• Ground Lift Switch to eliminate ground loops

• Gold-Plated RCA Sockets for optimal signal transmission