Universal Audio LA-610 Mk II｜Classic Tube Recording Channel
The Universal Audio LA-610 Mk II is a truly professional all-tube recording channel strip, combining the legendary Bill Putnam–designed 610 tube preamp with an authentic Teletronix LA-2A-style T4 optical compressor.
This classic design delivers warm, rich, vintage analog tone for vocals, guitars, bass, and voice-over. Updated with modern, user-requested enhancements — including a true compressor bypass, larger VU meter, higher output level, and auto-switching power supply — the LA-610 Mk II remains one of the most musical and iconic channel strips ever created.
Main Features
- Classic Bill Putnam 610 all-tube mic preamp — heard on legendary albums by Coldplay, The Beach Boys, Van Halen, and more.
- Authentic Teletronix T4 optical compressor, delivering smooth, natural LA-2A-style dynamic control.
- Built-in High and Low shelving tube EQ for shaping your sound.
- MkII upgrades: True Compressor Bypass, larger VU meter, increased output level, and auto-switching power supply.
- Supports Mic / Line / Hi-Z inputs — ideal for vocals, voiceover, guitars, bass, and more.
- Hand-assembled in the USA using audiophile-grade components.
- A complete vintage channel strip offering professional studio tone at an accessible price.
Specifications
| Microphone Input Impedance | Selectable: 500 Ω or 2 kΩ |
| Balanced Line Input Impedance | 20 kΩ |
| Hi-Z Input Impedance | Selectable: 2.2 MΩ or 47 kΩ |
| Max Microphone Input Level | –8 dBu (2 kΩ, pad engaged) |
| Maximum Output Level | +23 dBu (120 VAC line) |
| Internal Output Impedance | 80 Ω |
| Recommended Load | 600 Ω |
| Frequency Response | 20 Hz – 20 kHz, ±0.5 dB |
| Maximum Gain | 40 dB (Line), +77 dB (Mic) |
| Noise Floor | –72 dBu (Line, unity gain) |
| Compressor Ratio | ~3:1, soft knee, program dependent |
| Limiter Ratio | ~∞:1, soft knee, program dependent |
| Attack Time | ~10 ms, program dependent |
| Release Time | Dual-stage: ~60 ms for 50% release, then 1–15 seconds (program dependent) |
| Tube Complement | (3) 12AX7, (1) 12AT7, (1) EL84 |
| Power Requirements | 100V / 120V / 240V (auto-switching) |
| Power Consumption | ~30 W |
| Power Connector | Detachable IEC cable |
| Dimensions | 19" W × 3.5" H × 12.25" D (2U rack height) |
| Weight | 12 lb (5.44 kg) |
THINK2 Warranty & Support
- Fast Shipping: Orders ship within 24 hours on business days.
- Professional Technical Support: Audio engineers provide assistance with setup, compatibility, and troubleshooting.
- Full Warranty: Includes official manufacturer warranty and THINK2 after-sales service.
※ Warranty terms follow the manufacturer’s official policy; shipping time is based on business days.
THINK2 Warranty Policy
- Warranty coverage is provided with valid proof of purchase and product serial number.
- DOA / non-user-caused defects: eligible for replacement within 7 days of purchase.
- Not covered: user damage, unauthorized modifications, misuse, natural disasters, or operation outside specifications.
- How to request service: contact THINK2 during business hours and follow return instructions.
- Service availability primarily covers Taiwan; offshore areas follow logistic conditions.
