Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
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Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head
Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head

Ashdown UK-OBM-500 Original Bass Magnifier 500W Bass Head

Price
$699
In stock! Usually ships within 24 hours.
Lease-to-own available

Eligible customers can select Progressive Leasing at checkout and complete the application directly with Progressive. Progressive Leasing is a lease-to-own program, not a loan or traditional financing option.

Learn about Progressive Leasing

Pickup available at 1935 Friendship Drive

Usually ready in 5+ days

Check availability at other stores
Ashdown Engineering

Coming Soon — August 2026 Preorder — The Ashdown UK-OBM-500 is an upcoming model. Contact ECG Music for availability and preorder information.

500 Watts of Original British Bass — The Ashdown UK-OBM-500

The Ashdown UK-OBM-500 Original Bass Magnifier is a 500-watt bass head built in the United Kingdom, delivering the full-bodied, harmonically rich tone that Ashdown Engineering has been known for since 1997. Compact, powerful, and unmistakably British, the OBM-500 is designed for players who demand professional-grade performance without compromise.

At 500 watts into 4 ohms, the UK-OBM-500 provides ample headroom for rehearsal, studio, and live performance. Dual speaker outputs give you flexible cabinet pairing options, and the lightweight 2 kg / 4.4 lb chassis makes it one of the most portable 500-watt heads on the market. Finished in Ashdown’s signature Ice Blue, the OBM-500 carries the iconic Ashdown aesthetic with the Double Wing badge and premium build quality expected from a UK-made instrument.

El Cajon Guitars & Music is an authorized Ashdown dealer. We’re a working guitar shop with real expertise — not a drop-shipper. Shop with confidence at ECGMusic.com.

Specs
What’s included
Warranty & Peace of Mind

We stand behind every instrument and piece of gear we sell. If something isn’t right, reach out and we’ll make it right.
  • Coming Soon

Key Highlights

  • UK-Built by Ashdown Engineering 500 Watts of professional bass power Minimum impedance: 4 ohms Dual speaker jack outputs Ultra-lightweight: 2 kg / 4.4 lb Compact dimensions: 89 × 220 × 209 mm Signature Ice Blue finish with Ashdown Double Wing badge Authorized Ashdown Dealer — ECGMusic.com

Tech Specs

Brand
Ashdown Engineering Model: UK-OBM-500 Series: OBM / Original Bass Magnifier Product Type: Bass Amp Head Power Output: 500 Watts Minimum Impedance: 4 ohms Speaker Outputs: 2 × jack outputs Product Weight: 2 kg / approx. 4.4 lb Product Dimensions: 89 × 220 × 209 mm Finish: Ice Blue Country of Build: United Kingdom UPC: 79467775884

Warranty & Shipping

Shipping

⚠️ COMING SOON — AUGUST 2026 PREORDER Pricing verified from current Algam/Ashdown price list. • MAP / Retail Price: $699.00 • Dealer Cost: $454.35 Product specs verified from Ashdown UK-OBM-500 data sheet: • UPC: 79467775884 • Product weight: 2 kg / approx. 4.4 lb • Product dimensions: 89 × 220 × 209 mm • Power output: 500 watts • Minimum impedance: 4 ohms • Speaker outputs: 2 × jack outputs Still requires verification before publishing: • Official carton/shipping dimensions • Final image order and quality review

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