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Indy SPL6M/4 6.5" 4Ohm 150w RMS Professional High SPL Midrange Speaker

World RRP: £41.95

Category: Midbass & Midrange Speakers

Product code: IndySPL6M/4

It's back! The legendary SPL series Bassface midrange - the midrange that launched our brand and made us famous in Europe! Now in this latest iteration with a slightly revised motor structure and tweaked response this speaker offers amazing on and off axis linearity from literally the low end right the way up and beyond where you should be using it! This offers totally unrivalled flexibility in system planning, allowing the installer to use the speaker in many situations. These are typically used in arrays along with some enormous tweeters to create a sound that hits you in the chest.

Version History

Refined version of the original SPLxM.2 design, built for us by our original factory floor but with better documentation and packaging and intense QC to make sure none of the items arrive with an offset coil, which had been a slight issue in very batch production many years ago.



Key Facts

Product Category Midbass & Midrange Speakers
Version 1
Series Indy
Date Added 24/10/2016
Date Modified 20/11/2023
Barcode 5060905111206
Production Status Current
Product Net Weight (g) (For Pairs/Sets/Major Parts) 1850
Product Height (mm) 87.5
Product Length (mm) 174
Product Width (mm) 174
Complete Product Pack Weight (g) 2240
Retail Carton L (mm) 190
Retail Carton W (mm) 190
Retail Carton H (mm) 115
Operating Temperature (Degrees Celsius) 0-50
Warranty (Months) - Private Enjoyment Use Only 12
Sold As Single

Speaker Data

Speaker Power Handling RMS (Watts) (One Speaker, Using Appropriate Crossover) 150
Continuous RMS Power (Watts) (One Speaker, Using Appropriate Crossover & 0%THD) 120
Overall Diameter (mm) 174
Magnet Diameter (mm) (Including Magnet Protector Where Applicable) 120
Installation Cut-Out Diameter (mm) 147
Overall Depth (mm) 87.5
Mounting Depth (mm) 72.5
Front Protrusion From Mounting Plane (mm) 15
System Frequency Response (Hz) 140>2000
Impedance (Ohm) (Nominal) 4
Sensitivity (db/1Wm) 92.5
Total Magnet Weight (Oz) 30
Magnet Size (mm) 120x20
Magnet Type Y35
Magnet Qty 1
Top Plate thickness (mm) 6
Back Plate Thickness (mm) 6
Voice Coil Former Spec Kapton
Voice Coil Type CCA Round Wire
Voice Coil External Diameter (mm) 40
Voice Coil Internal Diameter (mm) 38.5
Voice Coil Winding Height (mm) 10
Voice Coil Winding (Layers) 2
Cone Type Non Pressed Paper
Spider Compliance Medium
Spider Type Linear
Spider Diameter (mm) 108
Spider Design Single
Surround Triple Roll
Surround Material Cloth
Tinsel Wire Single
Terminal Push

Technical Highlights

  • 165mm / 6.5" High Performance 150W RMS Midrange Driver
  • Lightweight Non Pressed Paper Cone & Triple Roll Cloth Surround
  • 1.5" Coated CCA Wire, Kapton Voice Coil & Linear, Medium Compliance Single Spider
  • High Strength Y35 Motor With 30 Oz Magnet
  • Copper Shorting Ring For Smoother Load Response
  • Carefully Selected Super Rigid Cast Basket
  • CNC Machined Bullet Phase Plug Optimises Response Curve

What's In The Box?

  • 1 x Midrange Speaker
  • 1 x Datasheet
  • 1 x Series Window Sticker
  • 1 x Sealing Ring
What's In The Box?

Technical Parameters

SPL (db/1Wm) 92.5
Xmax Single Way Total (mm) 2