Ashdown UK-OBM-500

Original Series 500w Compact & Lightweight Bass Amp Head. Made in the UK.

New

£399.00
In Stock

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01271 323686

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Ashdown UK-OBM-500
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Description

Specification

Finance

Delivery

The Ashdown UK-OBM-500 is a UK-built, ultra-compact 500-watt bass head finished in striking Ice Blue. Lightweight and powerful, it features a versatile 5-band EQ, classic Pre-Shape tone contour, FX Loop, DI Output, and auto-voltage operation for worldwide gigging. A clean, punchy, no-nonsense amp built for players who want reliability and great tone in the smallest possible format.

Original Reimagined in the UK

The Ashdown UK-OBM-500 is the latest step forward in the OriginAL EVO lineage, now hand-built in the UK and finished in striking Ice Blue. Delivering 500 watts of clean, dependable power, this compact head is designed for bassists who want a non-nonsense amplifier that performs confidently in any setting, while remaining exceptionally lightweight and portable.

Powerful Output, Compact Design

Despite its ultra-compact footprint, the UK-OBM-500 offers commanding headroom and consistent performance that comfortably exceeds expectations for its size. Its efficient design makes it easy to transport while retaining the authority and clarity required for rehearsals, live performance, and studio use alike.

Intuitive Tone Shaping

Tone shaping is handled by a responsive 5-band EQ, giving precise control across the frequency spectrum without unnecessary complexity. For instant tonal shaping, the familiar Pre-Shape switch provides a refined contour that enhances low-end punch, clarity, and presence - ideal for achieving a polished, mix-ready sound at the touch of a button.

Essential Connectivity, Global Readiness

A clean DI output ensures reliable signal delivery for front-of-house and recording applications, while the FX Loop allows seamless integration of external pedals and processors. Auto-voltage operation enables safe and consistent use worldwide, making the UK-OBM-500 a dependable companion for travelling musicians.

Built to last, designed to perform

Finished in bold Ice Blue with a purposeful, uncluttered layout, the UK-OBM-500 reflects Ashdown's focus on durability, efficiency, and long-term reliability. Clean, powerful, and refreshingly straightforward, it delivers the tone you need, the portability you want, and the confidence you expect from an Ashdown amplifier.

Specification

POWER
• Power Output: 500 Watts
• Power Requirements: 115–230 Volts
• Impedance: Minimum 4 Ohms

CONNECTIVITY & I/O
• Speaker Outputs: 2 × Jack outputs
• High Instrument Input: Impedance 3.9M Ohms, input range 150mV – 20V p-p
• Low Instrument Input: Impedance 1M Ohms, input range 150mV – 10V p-p
• DI Output: 600 Ohm balanced, Level –20dBu nominal
• Effects Send: Impedance 22k Ohm, Level 0dBu nominal
• Effects Return: Impedance 22k Ohms, Input Level 0dBu nominal

PERFORMANCE
• Frequency Response: –3dB @ 22Hz and 25kHz
• Signal to Noise: Better than 80dB (EQ flat)
• EQ:
• Bass: ±15dB @ 100Hz
• Lo Mid: ±15dB @ 220Hz
• Middle: ±15dB @ 660Hz
• Hi Mid: ±15dB @ 1.6kHz
• Treble: ±15dB @ 7kHz shelving
• Distortion: Less than 0.5% THD

DIMENSIONS & WEIGHT
• Height: 89 mm
• Width: 220 mm
• Depth: 209 mm
• Net Weight: 1.8 kg

- Insured Next Working Day 24hr Delivery: £20
(Monday - Friday when ordered before 9am.

Exc Highlands & N. Ireland)

- Next Day Before Noon &
Next Day Before 9.00am Delivery Available
(Price Calculated at checkout)


- Saturday Delivery Available
(Price Calculated at checkout)


- Worldwide Delivery Available
We ship all over the world.

Please contact us with your address for a quote at info@soundpad.co.uk

Please note: Where possible, items ordered before 10am Mon-Fri, will be sent out the next working day on a 24hr service.
We will contact you with delivery information.

- Click & Collect available
Collection is available from our Barnstaple shop for local customers. Please select 'Click & Collect' as the Shipping Method at checkout.
Once the order is received, we will contact you to arrange a collection time from our Barnstaple shop.
Please note: The order must be collected by the Card Holder. Photo ID showing Name & Card Holders address is required at point of collection.

- Free Local Delivery available
for Barnstaple, Bideford & Braunton areas.

When you spend £200 or more. Free Delivery is automatically added at checkout.
Once the order is received, we will contact you to arrange a delivery time. Free Delivery is based on your postcode.

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Take it away is a publicly funded scheme, available through a network of musical instrument retailers across England and Northern Ireland. You can use the scheme to help finance the purchase of a wide range of musical instruments, equipment and accessories. You must be over 18 to apply for a Take it away loan. Credit is subject to status and affordability. Terms and conditions apply.

Important information about the Take it away finance offer 

Credit is provided by Omni Capital Retail Finance Ltd, authorised and regulated by the Financial Conduct Authority with firm reference number 720279.

There are consequences for missed payments such as fixed late fees and an adverse impact on your credit file.

Finance options vary by retailer, retailer location and product availability. Some products, including certain longer-term and higher-value finance options, are only available through selected retailers and may require the retailer to be authorised by the FCA to carry on credit broking activities.

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