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Indy A12/4 12" 30cm 4Ohm Loud & Musical Subwoofer 250w RMS (Sealed Enclosures)

World RRP: £63.95

Category: SUBWOOFERS

Product code: INDYA12/4

The Indy A was desigend to offer a great sounding subwoofer that be as easy to use as possible. Many prototypes were made and modified along with a tremendous amount of reliability testing undertaken to ensure outstanding longevity. Using custom designed coils and multiple spiders tuned to each exact size and model we were able to develop for excellent performance whilst providing as much protection as possible against beginner mistakes such as accidental distortion, over driving and non-optimal box design. The motor venting has been carefully designed to offer the best balance between noise reduction and cooling efficiency. The high roll surround was chosen to allow peak excursion whilst maintaining good cone area. In normal use the surround will not be moved to maximum limits, helping to improve longevity. The Indy A is designed to be used in a sealed enclosure and the product includes detailed plans for a suggested box project. The speaker must not be used in a free air or infinite baffle installation. The design of this woofer ensures compatibility with a huge range of amplifiers, even those where power ratings are many times that of the woofer. This is because we rate at true continuous power, whereas many amplifiers are rated at some kind of crazy “maximum” levels. True continuous power ratings! It’s the future! In use, our woofer is incredibly forgiving and has the ability to handle high power bursts far greater than our listed burp power, providing that the power is clean. For keen enthusiasts looking for a lightweight and accurate sounding woofer the Indy A offers tremendous bandwidth, musicality and surprisingly good deep bass performance. It also has excellent detailed documentation making it easy to set up and use, as well as allowing the construction of more advanced enclosure projects. We firmly believe that this is one of the best subwoofers in its class - it’s the entry level woofer that behaves like an expert!

Technical Highlights

  • 250W Continuous RMS / 500W Burp Power Handling
  • 2 Inch Single 4 Ohm Round Wire 4 Layer Voice Coil
  • Best In Sealed Enclosures 0.8>2.5 CuFt
  • Linear Medium Compliance Spaced Twin 1x1 Spider Packs
  • Tall Smooth Foam Surround & Pressed Paper Cone
  • 2 x High Quality Y25 Magnets 120x15mm
Technical Highlights

Series

Indy

What's In The Box?

What's In The Box?
  • 1 x Subwoofer
  • 1 x Data Sheet
  • 1 x Box Design Manual
  • 1 x Indy A Sticker

Version History

Indy A concept was designed to offer an all-round high performance woofer at a reasonable price point. The new engineering team drew up a wish list of specification points and made several prototypes before settling on the current basket, motor and cone layout. From there detail changes were made to almost every aspect of the basic design focussing on each detail. The Indy A branding was originally conceived in mid-2020, with outline specifications in place by the end of that year. Prototypes were built throughout late 2020 and first production models were made available Q3 2021

Key Facts

Product Category Subwoofers
Version 1
Series Indy
First Added 08/01/2020
Last Modified 08/01/2025
Barcode 5060905110605
Production Status Current
Product Net Weight (g) (For Pairs/Sets/Major Parts) 3500
Product Height (mm) 148
Product Length (mm) 315
Product Width (mm) 315
Complete Product Pack Weight (g) 4200
Operating Temperature (Degrees Celsius) 0-50
Warranty (Months) - Private Enjoyment Use Only 12
Sold As Single

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Speaker Data

Speaker Maximum Burst Power (Watts) (One Speaker, Using Appropriate Crossover) 500
Continuous RMS Power (Watts) (One Speaker, Using Appropriate Crossover & 0%THD) 250
Overall Diameter (mm) 315
Magnet Diameter (mm) (Including Magnet Protector Where Applicable) 120
Installation Cut-Out Diameter (mm) 280
Overall Depth (mm) 168
Mounting Depth (mm) 148
Front Protrusion From Mounting Plane (mm) 30
Recommended Frequency Range (Hz) 25>100
Impedance (Ohm) (Nominal) 4
Sensitivity (db/1Wm) 87.61
Total Magnet Weight (Oz) 45
Magnet Size (mm) 120*15
Magnet Type Y25
Magnet Qty 2
Top Plate thickness (mm) 6
Back Plate Thickness (mm) 6 + Bump
Optimum Bass Enclosure Type Sealed
Recommended Bass Enclosure Volume (CuFt) 0.8>2.5
Recommended Bass Enclosure Tuning Frequency (Hz) N/A
Voice Coil Former Spec Aluminium
Voice Coil Type Copper Round Wire
Voice Coil External Diameter (mm) 54.2
Voice Coil Internal Diameter (mm) 50.8
Voice Coil Winding Height (mm) 16
Voice Coil Winding (Layers) 4
Cone Type Pressed Paper
Spider Compliance Medium
Spider Type Linear
Spider Diameter (mm) 152
Spider Design 1x1, spacer, 1x1
Surround Tall Smooth
Surround Material Foam
Tinsel Wire Single
Terminal Push

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