Tube-Tech SMC 2BM – The Ultimate Multiband Tube Mastering Compressor

The Tube-Tech SMC 2BM is the mastering version of the legendary SMC 2B Stereo Multiband Compressor. Featuring precision step controls for extreme accuracy and recall, the SMC 2BM delivers the same renowned sound as the SMC 2B while providing enhanced mastering-grade control. It has become a staple for top mastering engineers worldwide.

Mastering-Grade Precision

Unlike the standard SMC 2B, the SMC 2BM features high-quality stepped switches fitted with precision resistors for every control parameter. This ensures exact repeatability when dialing in settings, making it ideal for mastering applications where precision is paramount.

Key Features

• All-Tube Multiband Compression – Rich, musical, and highly flexible
• Precision Stepped Controls – Mastering-grade accuracy for total recall
• Three Independent Optical Compressors – Individual control over low, mid, and high bands
• Switchable Crossover Frequencies – 12-step Low/Mid and 6-step Mid/High band crossovers
• Gold-Plated Gain Controls – 12-position switches with 1dB increments
• Transformer-Balanced Input & Output – Ensures pristine signal integrity
• Low Distortion Optical Gain Reduction – Clean, transparent compression
• Master Output Gain & Balance Control – Fine-tune stereo imaging
• LED Gain Reduction Display – Provides clear visual feedback
• Clickless In/Out Relay – Seamless bypass without artifacts

Technical Specifications

• Compression Type: Optical (Tube-Based)
• Frequency Response (-3 dB): 5 Hz – 60 kHz
• Noise Level: < -60 dBU at 10 dB gain
• CMRR: > 60 dB at 10 kHz
• Compression Bands: 3 (Low, Mid, High)
• Variable Crossover Points:
  • Low/Mid: 60 Hz – 1.2 kHz (12 steps)
  • Mid/High: 1.2 kHz – 6 kHz (6 steps)
• Controls Per Band: Threshold, Ratio, Attack, Release, Gain
• Gain Control: 12-step gold-plated switches (1 dB per step)
• Master Output Gain: Off to +10 dB
• Balance Control: +/-1.5 dB
• Gain Reduction Metering: LED Display
• Inputs/Outputs: Transformer-Balanced & Fully Floating

Why the SMC 2BM Is Essential for Mastering

The Tube-Tech SMC 2BM is one of the few compressors that can smoothly control the dynamic range while adding musicality. Its multi-band compression allows you to target different frequency ranges independently, making it invaluable for mix bus processing, mastering, and dynamic shaping of entire tracks.

Real-World Applications

• Mastering – Transparent compression for refined, professional-sounding masters
• Mix Bus Processing – Adds depth, warmth, and dynamic control
• Instrument Groups – Brings cohesion to drum buses, guitars, and more
• Live Sound – Enhances clarity and dynamics for high-end touring productions
• De-Essing & Frequency Control – Target and remove problem frequencies
• Dynamic Vocal Processing – Smooths out performances without excessive coloration

FAQ: Difference Between SMC 2B and SMC 2BM

• SMC 2B: Standard version with continuously variable controls
• SMC 2BM: Mastering version with stepped controls for precise recall and calibration

Why Choose the Tube-Tech SMC 2BM?

With its all-tube multiband compression and mastering-grade stepped controls, the Tube-Tech SMC 2BM is the ultimate tool for engineers who demand precision, warmth, and flexibility in their compression workflow. Whether used for mixing, mastering, or live applications, the SMC 2BM delivers musical, transparent results that enhance any mix.