May 2026 Service Including:

Exterior Cleaned - Cosmetics are Excellent for Age

Interior Cleaned

Drive Belts Replaced x2

Counter Belt Replaced x1

Switches De-oxidized

Inputs De-oxidized

Heads Cleaned

Heads De-magnetized

Capstan Cleaned

Pinch Roller Cleaned

All Transport Controls Functional

All Potentiometers Functional

All Switches Functional

Dolby NR Functional

Both Input Jacks Functional

Recording to All 4 channels Functional

LED's All Functional

Listing Includes:

Non-OEM Correct Spec Power Adapter

Complimentary Type II New Old Stock (Sealed - Original Packaging) High Bias Cassette

Known Issues:

One Knob Incorrect Color (Headphone Volume, Correct Size Knob but Slightly Darker Color)

As is common with many of these decks, there is a low decibel level white noise floor in the background of the headphone output which does NOT effect the line out jacks. Disclosed here regardless for transparency.

The Tascam Porta 03 MKII is a 4-track analog cassette recorder designed for multitrack recording using standard Type II cassettes. It features a built-in 4-channel mixer with level and pan controls for each track, two 1/4" mic/line input channels, and supports 2-track simultaneous recording.  The unit includes Dolby B Noise Reduction, headphone and RCA line outputs, and a mechanical tape counter with zero reset. It operates at the standard tape speed of 4.8 cm/s and requires an external 12V DC power supply. Known for its durability and warm analog sound, it’s popular among lo-fi and experimental musicians. Users praise its simplicity and reliability

Core Specifications

• Tracks: 4-track recording with 2-track simultaneous recording
• Tape Speed: 4.8 cm/s (standard speed)
• Tape Type: Optimized for Type II (chrome) cassettes
• Dolby Noise Reduction: Dolby B
• Frequency Response: 50 Hz – 12.5 kHz ±3 dB
• Signal-to-Noise Ratio: 43 dB
• Wow and Flutter: 0.18%
• Total Harmonic Distortion: < 3.0% (400 Hz, -10 dB)
• Channel Separation: > 40 dB (at 1 kHz)
• Erasure: 65 dB (at 1 kHz) 

Inputs & Outputs

• Inputs:
• • 2 × 1/4" TRS mic/line inputs with trim control and record select
  • Input level: -10 / -50 dBV
  • Input impedance: 50 kΩ
• Outputs:
• • RCA stereo line outputs (level: -10 dBV, impedance: 10 kΩ)
  • Headphone output: 60 mW + 60 mW (30 kΩ)
• Mixer:
• • 4-channel mixer with level and pan controls per track
  • Master fader (scale 1–10, 0 dB between 7–8)
  • Individual track meters (green = 0 dB, yellow = +3 dB) 

Tascam Bin 1