Bang & Olufsen Authorized Service Center
📍 Los Angeles County & SoCal
🔧 30+ Years Experience
🎚️ B&O Specialist
🏢 TEK Media Group
📋 A NOTE FROM MY WORKBENCH: The Bang & Olufsen BeoLab 5 is a complex active loudspeaker with multiple amplifier modules (ICEpower), a sophisticated DSP crossover, and the unique Acoustic Lens Technology (ALT). Repairs require specialized knowledge, test equipment, and factory documentation. I have the expertise and parts access to restore these speakers correctly. My email is
jt@tekmg.com for direct inquiries.
⚠️ CRITICAL WARNING – BEO-LAB 5 SPECIFIC: The BeoLab 5 contains high-voltage amplifier modules (ICEpower) and complex DSP circuitry. Capacitors in the power supply and amplifier modules degrade over time, causing noise, distortion, and failure. The Acoustic Lens motor can also develop issues. I provide a thorough, methodical restoration to factory specifications.
About the Bang & Olufsen BeoLab 5 & My Approach
The Bang & Olufsen BeoLab 5 (2004-2015) is an iconic active loudspeaker that represents the pinnacle of Danish audio engineering. Featuring the legendary Acoustic Lens Technology (ALT) for 180-degree sound dispersion, 2,500 watts of ICEpower amplification (two 1,000W bass amps + one 500W mid/tweeter amp per speaker), a 15-inch woofer, and a sophisticated DSP-based crossover, the BeoLab 5 delivers breathtaking sound quality and stunning design. I've restored dozens of BeoLab 5 speakers over three decades, and I treat each one with the meticulous care this Danish masterpiece deserves. I use premium replacement components and follow factory service procedures to ensure your speakers perform to original specifications.
✅ WHY TRUST TEK MEDIA GROUP WITH YOUR B&O BEO-LAB 5:
- 30+ Years of High-End Audio Restoration Experience
- Specialized Knowledge of Bang & Olufsen Active Speakers
- Complete Amplifier Rebuild (ICEpower modules)
- Full Capacitor Replacement: Power Supply, Amplifier, DSP Boards
- Acoustic Lens Technology (ALT) Motor Service & Calibration
- Driver Service (15-inch woofer, midrange, tweeter)
- DSP Crossover Verification & Firmware Updates
- Thermal Management & Heatsink Service
- 100% Personal Attention – No Assembly Line
- 90-Day Warranty on All Work
- Nationwide Service – Secure Shipping Available Across All 50 States
- Direct Email: jt@tekmg.com for quick responses
Complete Bang & Olufsen BeoLab 5 Restoration Services I Offer
🔍 Full Diagnostic & Evaluation Complete assessment of both speakers, amplifier health check, driver testing, Acoustic Lens operation, DSP verification
⚡ Power Supply Rebuild Replace all electrolytic capacitors, check bridge rectifiers, test voltage regulators, verify all supply rails
🔊 ICEpower Amplifier Module Service Recap and restore all three amplifier modules (2x bass, 1x mid/tweeter) per speaker
🎛️ DSP Board & Crossover Service Capacitor replacement, firmware update, DSP calibration verification
🔄 Acoustic Lens Technology (ALT) Service Motor inspection, belt replacement (if applicable), lens movement calibration
🔈 Driver Service Test 15-inch woofer, midrange driver, and tweeter – replace surrounds if needed, recone if damaged
🌡️ Thermal Management Clean heatsinks, replace thermal pads, check cooling fans
🎚️ Input & Control Board Service Test Power Link inputs, balanced XLR inputs, check control board capacitors
🏆 COMPLETE FULL RESTORATION All services above – your BeoLab 5 speakers will perform to original reference specifications
💡 WHAT MY RESTORATION INCLUDES: Full electrolytic recap (power supply + amplifier modules + DSP board) • ICEpower module service • Acoustic Lens motor service • Driver testing & surround replacement (if needed) • DSP firmware update • Thermal management • 90-day warranty.
Bang & Olufsen BeoLab 5 – Component Overhaul Database
⚠️ Typical restoration per speaker: 60-80 electrolytic capacitors replaced across power supply, amplifier modules, and DSP board.
⚡ POWER SUPPLY (Per Speaker)
| Component | Original Type | My Restoration Replacement |
|---|
| Main Filter Caps |
4,700-10,000µF @ 63-80V |
High-ripple, 105°C (Nichicon KG / Cornell) |
| Standby Power Supply |
1-47µF @ 50V |
Low ESR, long life (Nichicon PW / Panasonic FC) |
| Regulator Board Caps |
47-1000µF @ 16-35V |
Low Impedance, 105°C (Panasonic FC / Nichicon PW) |
🔊 ICEpower AMPLIFIER MODULES (3 per speaker)
| Module | Capacitor Count | My Replacement |
|---|
| Bass Amplifier (1,000W) x2 |
15-20 caps each |
Low ESR, 105°C, high ripple current rating |
| Mid/Tweeter Amplifier (500W) |
10-15 caps |
Low ESR, 105°C (Panasonic FC / Nichicon PW) |
🎛️ DSP BOARD & CROSSOVER
| Component | Action | Specification |
|---|
| Electrolytic Caps |
Replace All |
Low ESR, 105°C, audio-grade where signal path |
| DSP Firmware |
Update to Latest |
Verify correct operation after update |
| Crystal Oscillator |
Check & Replace |
Replace if drifted |
🔧 Professional Troubleshooting Tips – From My Workbench
💡 TIP #1: No Power / Dead Speaker – My Step-by-Step Approach
- First, verify AC input voltage and check the IEC power cord – I've seen many "dead" speakers that just had a bad cord.
- Check the main fuse on the power supply board – if blown, there's likely a short in the primary section.
- Inspect the standby power supply – measure 5V standby rail. If missing, I check startup resistors and the PWM controller IC.
- Common failure: Primary-side electrolytic capacitors – I always replace these with 105°C low-ESR types.
- Check the main relay – if not engaging, I suspect either the power supply or a short on an amplifier module.
- Test all voltage rails: ±70V (bass amps), ±50V (mid/tweeter amp), +15V (DSP), +5V (logic), +3.3V (processing).
💡 TIP #2: No Sound / Distorted Sound – Amplifier or Driver Issues
- First, check if the issue is with all drivers or just one – this helps isolate which amplifier module has failed.
- Test the ICEpower amplifier modules – common failures include output transistors and power supply capacitors.
- Check the input board – Power Link and XLR inputs can fail due to static discharge.
- Test each driver (woofer, midrange, tweeter) with a multimeter – check for open or shorted voice coils.
- If the woofer foam surround has deteriorated, I replace it with a proper kit.
💡 TIP #3: Acoustic Lens Not Moving / Stuck / Noisy
- The BeoLab 5's Acoustic Lens Technology uses a motor to raise/lower the lens.
- First, check the lens motor drive belt – it can stretch or break over time. I replace it with a factory-spec belt.
- Clean and lubricate the lens guide rails – dried lubricant causes sticking.
- Check the lens position sensors – clean with DeoxIT or replace if failed.
- If the motor runs but the lens doesn't move, the belt is likely broken or slipping.
- If the lens makes grinding noise, the gears may be damaged – I can source replacements.
💡 TIP #4: Hum / Buzz from Speaker
- Audible hum is almost always bad power supply filter capacitors.
- I replace all main filter caps with high-ripple, low-ESR types.
- Check ground connections – loose ground screws cause hum loops.
- If hum is only from one driver, suspect bad capacitors in that amplifier module.
- After recap, I verify ripple on B+ rails with an oscilloscope – should be <10mV.
💡 TIP #5: Overheating / Thermal Shutdown
- The BeoLab 5 has extensive heatsinks and cooling fans. Check for dust buildup – I thoroughly clean all heatsinks and fans.
- Check the cooling fans – if not spinning, replace them.
- Replace dried thermal pads between amplifier modules and heatsinks.
- If overheating persists, check bias current on the ICEpower modules – may need recalibration.
💡 TIP #6: Remote Control / Power Link Issues
- The BeoLab 5 uses Power Link for communication with B&O systems. Check the Power Link cable first.
- If Power Link is not working, the speaker will not turn on/off automatically.
- Check the opto-isolators on the input board – they fail from static.
- For manual operation, use the balanced XLR inputs – they are more reliable.
💡 TIP #7: My Capacitor Replacement Philosophy for BeoLab 5
- Common capacitor failures: Power supply primary caps (8-12 years), ICEpower module caps (8-10 years), DSP board caps (8-10 years).
- I use only 105°C low-ESR capacitors from Panasonic, Nichicon, or United Chemi-Con. No exceptions.
- For the ICEpower modules, I use high-ripple current capacitors rated for switching power supply use.
- For DSP board signal path caps, I use audio-grade Nichicon FG or WIMA films for small values.
- I replace all capacitors regardless of visual appearance – they age even if not bulging.
- I document capacitor polarity before removal with photos – incorrect polarity causes immediate failure.
- After recap, I verify all voltage rails and allow 60 minutes of burn-in before full testing.
⚠️ IMPORTANT NOTE FROM MY WORKBENCH: The BeoLab 5 contains high-voltage amplifier modules (up to ±70V). Always discharge power supply capacitors before servicing. I use proper safety procedures. Do not attempt internal repairs unless you are a qualified technician.
🔍 Quick Troubleshooting Reference Chart – From My Service Logs
| Symptom | Most Likely Cause | My Fix / Solution |
|---|
| No power, no LED |
Blown fuse, dead power supply |
Replace fuse, recap power supply, check ICEpower modules for shorts |
| LED on, but no sound |
Amplifier module failure, input board issue, driver failure |
Test ICEpower modules, check input board, test drivers with multimeter |
| Distorted sound / low output |
Bad caps in amplifier module, failed output transistors |
Recap ICEpower module, replace output transistors if failed |
| Acoustic Lens not moving |
Broken belt, failed motor, stuck rails |
Replace belt, clean/lubricate rails, test/replace lens motor |
| Hum / buzz from speaker |
Bad power supply filter capacitors |
Replace main filter caps with high-ripple, low-ESR types |
| One driver not working (woofer/mid/tweet) |
Failed amplifier channel, blown driver |
Test amplifier module, test driver voice coil with multimeter |
| Speaker shuts off randomly |
Overheating, power supply instability, bad fan |
Clean heatsinks, replace thermal pads, check cooling fans, recap power supply |
| Lens motor noisy / grinding |
Worn gears, lack of lubrication |
Clean and lubricate mechanism, replace worn gears |
| Power Link not working |
Bad cable, failed opto-isolator |
Test/replace Power Link cable, check/replace opto-isolators on input board |
Deep Dive: My Bang & Olufsen BeoLab 5 Restoration Process
⚡ POWER SUPPLY (Critical for Performance)
- Main Filter Capacitors: Large snap-in electrolytics – I replace with high-ripple, low-ESR, 105°C rated types (Nichicon KG, Cornell Dubilier).
- Standby Power Supply: I rebuild the 5V standby circuit – critical for proper startup.
- Bridge Rectifiers: I test and replace if noisy, upgrade to ultra-fast soft recovery types for lower noise floor.
- AC Input & Safety: I inspect AC input filter, replace RIFA caps if present, check fuses and IEC inlet.
- Transformer Check: I verify toroidal transformer output voltages.
🔊 ICEpower AMPLIFIER MODULE SERVICE (3 per speaker)
COMPLETE AMPLIFIER RESTORATION:
- Electrolytic Capacitors: All electrolytic caps on each ICEpower module are replaced with high-ripple, low-ESR types.
- Output Transistors: I test all output transistors – replace with genuine, matched replacements if failed.
- Driver ICs: I test the class D driver ICs – replace if failed.
- Thermal Compound: I remove old compound and apply fresh high-quality thermal paste.
🎛️ DSP BOARD & CROSSOVER SERVICE
- Capacitor Replacement: All electrolytic capacitors on the DSP board are replaced with low-ESR, 105°C types.
- Firmware Update: I update the DSP firmware to the latest version if available.
- Clock Circuit: I verify crystal oscillator for accuracy – replace if drifted.
- DSP Calibration: I verify crossover frequencies and filter responses.
🔄 ACOUSTIC LENS TECHNOLOGY (ALT) SERVICE
- Motor Inspection: I test the lens motor for proper operation – replace if weak or noisy.
- Belt Replacement: I replace the drive belt with a factory-spec equivalent.
- Guide Rail Cleaning: I clean and lubricate the lens guide rails with white lithium grease.
- Position Sensors: I test the lens position sensors – clean with DeoxIT or replace.
- Calibration: I calibrate lens movement end-points for smooth operation.
🔈 DRIVER SERVICE
- Woofer (15-inch): I test voice coil for opens/shorts, replace foam surround if deteriorated, recone if damaged.
- Midrange Driver: I test and replace if failed – I have access to genuine B&O replacement drivers.
- Tweeter: I test and replace if failed – genuine B&O replacements available.
Bang & Olufsen BeoLab 5 Specifications
| Parameter | Specification |
|---|
| Amplifier Power (Total) |
2,500 watts per speaker |
| Bass Amplifiers (2x) |
1,000 watts each (ICEpower) |
| Mid/Tweeter Amplifier |
500 watts (ICEpower) |
| Woofer |
15-inch with Adaptive Bass Linearization |
| Midrange |
Custom B&O driver |
| Tweeter |
Custom B&O driver with Acoustic Lens |
| Frequency Response |
17Hz - 22kHz ±3dB |
| Inputs |
Power Link, Balanced XLR, Line input |
| Dimensions (WxHxD) |
17.3" x 28.7" x 18.9" |
| Weight per speaker |
Approx 101 lbs (46 kg) |
Nationwide Service – We Ship Speakers Across America
🇺🇸 NATIONWIDE SERVICE AVAILABLE 🇺🇸
Ship your Bang & Olufsen BeoLab 5 speakers securely – I serve all 50 states
I've restored BeoLab 5 speakers for clients nationwide:
- Secure Packaging: I'll provide detailed packing instructions for these 101lb speakers – double-boxing with high-density foam.
- Insured Shipping: I recommend fully insured shipping for your valuable speakers.
- Nationwide Reach: No matter where you are in the United States, I can restore your speakers to factory specifications.
- Direct Contact: Email me at jt@tekmg.com for a quick quote or consultation.
Frequently Asked Questions – Bang & Olufsen BeoLab 5
❓ What makes the BeoLab 5 special?
The BeoLab 5 features Acoustic Lens Technology for 180-degree sound dispersion, 2,500 watts of ICEpower amplification, and a unique Danish design. It's widely considered one of the finest active loudspeakers ever made.
❓ How long does a full restoration take?
Typically 3-4 weeks for a pair of speakers depending on parts availability. Rush service available.
❓ Do you offer nationwide service?
Yes! I serve customers across all 50 states with secure shipping instructions for these heavy speakers.
❓ Can you fix the Acoustic Lens mechanism?
Yes – I specialize in ALT motor service, belt replacement, and lens calibration.
❓ Do you have spare parts for the BeoLab 5?
Yes, I've accumulated a stock of ICEpower modules, drivers, belts, capacitors, and other components over 30 years.
❓ Do you warranty your work?
Yes, 90-day warranty on all parts and labor. I stand behind every restoration.
My Service Area – Local & Nationwide
🇺🇸 NATIONWIDE SERVICE AVAILABLE 🇺🇸
Ship your Bang & Olufsen BeoLab 5 speakers securely – I serve all 50 states
Local Service: Los Angeles County, Orange County, Ventura County, Riverside County, San Bernardino County.
Nationwide Service: Secure shipping options with detailed packing instructions for heavy speakers.
Los Angeles County: LA Burbank Glendale Santa Monica Hollywood Pasadena
Nationwide: NY TX FL IL WA All 50 States
TEK Media Group — Bang & Olufsen Restoration Since 1994
📞 (818) 244-4440 | ✉️ jt@tekmg.com
Bang & Olufsen BeoLab 5 Specialist • ICEpower Amplifier Restoration • Acoustic Lens Service • 30+ Years Experience
Every BeoLab 5 gets my personal attention – I'm the technician who does the work. Email me at jt@tekmg.com.
