Vacuum Tube HiFi Equalizer Preamp 7-Band Analog EQ Stereo XLR Audiophile Preamp

Shape and refine your sound with the Nobsound T8PRO HiFi Vacuum Tube Equalizer Preamp, a premium 7-band analog EQ and balanced stereo preamp designed for audiophiles, musicians, vinyl enthusiasts, studio listening setups, and high-end desktop audio systems.

Combining authentic vacuum tube warmth with precise analog equalization, the T8PRO allows users to fine-tune frequency response, compensate for room acoustics, enhance speaker performance, and personalize their listening experience with rich musical character and smooth analog tone.

Built with balanced XLR and RCA connectivity, this versatile HiFi preamp integrates beautifully into modern stereo systems, powered monitors, DAC setups, headphone rigs, turntable systems, studio listening stations, and home theater audio chains.

The included 6H1N-BN vacuum tubes provide warm mids, smooth highs, spacious imaging, and classic tube harmonics that complement jazz, classical, vinyl playback, acoustic recordings, vocal music, electronic music, and high-resolution digital audio.

Ideal for:

• Audiophile stereo systems
• Vinyl & turntable setups
• Tube HiFi systems
• Studio monitoring chains
• Desktop audio rigs
• Powered speaker systems
• DAC & streamer setups
• Home listening rooms
• Music production monitoring
• Room acoustic tuning

The dedicated 7-band EQ section offers precise control over low-end warmth, midrange presence, vocal clarity, instrument separation, and high-frequency sparkle without sounding harsh or overly digital.

Its vintage-inspired tube glow, aluminum construction, and compact desktop footprint make it both a functional audio tool and an elegant centerpiece for any HiFi listening environment.

Features

• 7-band analog equalizer
• Vacuum tube stereo preamp
• Balanced XLR input & output
• RCA input & output
• Genuine 6H1N-BN tubes included
• Analog tone shaping
• Tube rolling compatible
• Low-noise HiFi circuitry
• Compact aluminum chassis
• Warm vintage tube illumination
• Stereo balance adjustment
• Simultaneous RCA & XLR outputs

7-Band EQ Frequencies

• 50Hz
• 125Hz
• 315Hz
• 750Hz
• 2KHz
• 6KHz
• 16KHz

Perfect for:

• Bass enhancement
• Vocal presence
• Treble smoothing
• Speaker correction
• Room tuning
• Vinyl mastering tone
• Instrument clarity
• Warm analog coloration

Tube Configuration

Included Tubes:

• 2× 6H1N-BN

Compatible Tube Rolling Options:

• 12AU7
• ECC85
• 6SN7GT
• 6N1
• 6AQ8

Technical Specifications Inputs

• Balanced XLR
• RCA Stereo

Outputs

• Balanced XLR
• RCA Stereo

Frequency Response

• 20Hz – 20kHz (±1dB)

THD

• 0.01%

Signal-to-Noise Ratio

• ≥98dB

Power Supply

• DC 12V

Dimensions

• 186 × 128 × 38mm

Included Accessories

• T8PRO Equalizer Preamp
• 2× 6H1N-BN Vacuum Tubes
• DC 12V Power Adapter
• User Manual