Monitor Audio SB-4 High Performance Passive Soundbar
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Three Real Channels. Made for the Biggest Screens.
The Monitor Audio SB-4 is the largest bar in the SB line. It is more than 61 inches wide. That is the right match for a 70-inch TV or bigger.
Inside are three real speakers. The left, center, and right each get two 4-inch drivers and two gold dome tweeters. No channel is short-changed here. Voices stay clear, and the sound spreads evenly across a wide room.
The bar is passive. Your receiver powers it. There is no built-in amp to wear out, and no software making guesses for you. Better gear down the road means better sound from this same bar.
The cabinet is MDF, not plastic, and it weighs 26 pounds. That weight keeps the box quiet so you hear the drivers instead. Set it on the soft feet, or hang it with the BSB bracket, sold on its own. The binding posts are recessed, so it sits flat to the wall. Add a subwoofer and cross it over near 80Hz.
Key Features
Three Matched Channels — Left, center, and right all get the same drivers.
Six 4" C-CAM Drivers — Two per channel for real weight and clear voices.
Gold Dome Tweeters — They reach all the way up to 30kHz.
Solid MDF Cabinet — 26 pounds of wood keeps the box quiet.
Made for 70" TVs and Up — 61.5 inches wide, with recessed posts for a flat wall fit.
Specifications
- Type: 3-Channel (LCR) Passive Soundbar
- Tweeters: 6 x 1" (25mm) C-CAM Gold Dome (two per channel)
- Bass/Mid Drivers: 6 x 4" (100mm) C-CAM Cone (two per channel)
- Bass Loading: Auxiliary Bass Reflex (ABR) — one per outer channel, two center
- Frequency Response: 70Hz - 30kHz (-3dB)
- Sensitivity (1W @ 1m): 87dB
- Nominal Impedance: 8 Ohms
- Power Handling (RMS): 80W Per Channel; 100W System with 100Hz High-Pass Filter
- Recommended Amplifier Power: 30 - 100W Per Channel
- Recommended Crossover to Subwoofer: 80 - 120Hz
- Maximum SPL: 104dBA (108.8dBA All Channels Driven)
- Cabinet: MDF with Single Through-Bolt Driver Fixing
- Inputs: Recessed Gold-Plated Binding Posts
- Dimensions (with feet): 5-11/16"H x 61-9/16"W x 3-1/2"D (145 x 1562 x 89mm)
- Dimensions (with bracket): 5-11/16"H x 61-9/16"W x 3-15/16"D (145 x 1562 x 100mm)
- Weight: 26 lbs 7 oz (12kg)
- Included: Low-Profile Silicone Feet (BSB Wall Bracket Sold Separately)
- Also Compatible With: SANUS TV Mounting Systems
- Finish: Black
- Warranty: 5 Years
- Sold By: Each
Why Audio Advisor?
- 40+ Years of Expertise – Helping music lovers build better systems since 1981.
- 60-Day Money-Back Guarantee – Hear it in your own system with confidence.
- Real Product Experts – Friendly advice before and after your purchase.
- Free Shipping – On qualifying orders over $49.
- Flexible Financing – Convenient payment options available.
- Drive Unit Complement: All Channels: 2 x 4” (100mm) C-CAM cone bass/mid driver, 2 x 1” (25mm) C-CAM gold dome tweeter
- All MDF construction. Internally braced for additional rigidity
- Single through-bolt driver fixing provides mechanical de-coupling and enhanced mid-band clarity and resolution. The through-bolts also act as rigid cross bracing to give a very solid non-resonant cabinet
- Wrap around acoustically open, black cloth finish with solid brushed Silver aluminum end trims – provides stealthy appearance for perfect placement near a TV
- Neat terminal panel with high quality, low profile gold plated binding post terminals
- High quality crossovers utilizing polypropylene capacitors and low loss laminated steel core inductors
- Designed to fit standard TV mounting systems
- Optional sturdy wall bracket with cable hole access and template installation
- Low profile silicon rubber feet integrated for secure cabinet top placement
- Frequency Response (-3dB): 70Hz – 30kHz
- Sensitivity (1W@1M): 87dB
- Nominal Impedance (ohms): 8
- Power Handling Single - R.M.S. (W): 80
- System Power Handling - R.M.S. (W): 100 (High pass filter set to 100Hz)
- Recommended Amp Requirements (W): 30 – 100
- Recommended High Pass Crossover Frequency: 80 - 120Hz
- Maximum SPL (dBA): 104 (108.8 all channels driven)
- Bass Alignment: Left and Right Channels: 1 x Auxiliary Bass Reflex (ABR) Loading; Center Channel: 2 x Auxiliary Bass Reflex (ABR) Loading
- Cabinet Dimensions (HxWxD): 5-3/4 x 61-1/2 x 3/1-2 inch
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