Audibax PP4000 - Compact RIAA phono preamplifier with RCA and 6.35 mm jack output and ON/OFF switch

Audibax PP4000 - Compact RIAA phono preamplifier with RCA and 6.35 mm jack output and ON/OFF switch

The Audibax PP4000 is an RIAA phono preamp designed to adapt the low-level signal from a turntable to standard line level , allowing for seamless connection to amplifiers, powered speakers, mixing consoles, audio interfaces, or recorders. It features a stereo RCA phono input with a ground connection to eliminate feedback and induced noise, an RCA line output , and a 6.35 mm TRS output jack suitable for monitoring (including headphone connection). Its physical ON/OFF switch on the panel provides convenience for everyday use and extends the unit's lifespan by eliminating the need to unplug the power supply.

Inside, the PP4000 employs RIAA equalization and delivers reliable performance figures for both home and professional use: a signal-to-noise ratio of 70 dB , THD < 0.05% , -75 dB crosstalk , and optimal impedances for MM cartridges ( 47 kΩ input and 50 Ω output). Its 12 V DC power supply (adapter included) and power LED facilitate easy integration and control at a glance. The compact housing ( 104.6 × 35.3 × 65.14 mm ) and weight of 210 g simplify installation in both DJ racks and Hi-Fi systems. Finished in black .

Main features

• RIAA phono preamp for playing vinyl on line inputs.
• Connectivity : Stereo RCA phono input with ground; Stereo RCA line output; 6.35 mm jack output for monitoring/headphones.
• Integrated ON/OFF switch and power LED .
• Signal-to-noise ratio : 70 dB; THD : < 0.05%; crosstalk : -75 dB.
• Impedances : input 47 kΩ (typical for MM capsules); output 50 Ω.
• Levels : max. input -23.5 dBV; max. output +10 dBV.
• Power supply : 12 V DC (adapter included); consumption : 0.15 A.
• Compact format : 104.6 × 35.3 × 65.14 mm; weight : 210 g.
• Finish : Black.

Product benefits

• Maximum compatibility : converts the phono signal to line level so you can use your turntable with current equipment without a phono input.
• Background silence and detail : 70 dB S/N, THD < 0.05% and earth terminal to minimize noise.
• Instant control : dedicated ON/OFF switch; no need to disconnect the power supply.
• Direct monitoring : monitors the converted signal via 6.35 mm jack output.
• Easy installation : lightweight and compact design, status LED and 12V adapter included.

Use cases

• Connecting a turntable with an MM cartridge to active speakers or amplifiers without a phono input.
• Integration into DJ consoles , USB interfaces or recorders for digitizing vinyl records.
• Home Hi-Fi systems, music bars, DJ academies and small AV installations.

Frequently Asked Questions

Which cartridges is it compatible with? The 47 kΩ input is designed for MM (moving magnet) cartridges . For low-output MC cartridges, a dedicated step-up or preamp is recommended before the PP4000.

Can I use the 6.35 mm output with headphones? Yes, the 6.35 mm stereo jack allows you to monitor the converted signal with headphones. For very demanding headphones, a dedicated headphone amplifier can provide greater volume control.

Do I need drivers or software? No, it's a standalone analog device.

How do I avoid buzzing? Connect the turntable's ground wire to the PP4000 terminal and keep the signal cables away from power sources.

Which output should I use for my equipment? Use the RCA output to a line input. The maximum level is +10 dBV .

Installation tips

• Place the PP4000 away from transformers and network cables to reduce interference.
• Use good quality RCA cables and always connect the ground terminal .
• Start with the amplifier volume at minimum; gradually increase it to avoid saturation.

Project description

RIAA phono preamplifier with stereo RCA input (47 kΩ) and ground connection, stereo RCA and 6.35 mm TRS jack outputs, S/N 70 dB, THD < 0.05%, crosstalk -75 dB, max levels: input -23.5 dBV / output +10 dBV, output 50 Ω, 12 V DC power supply (included), consumption 0.15 A, dimensions 104.6 × 35.3 × 65.14 mm, weight 210 g, black color, ON/OFF switch and power LED.