DEFINITIVE TECHNOLOGY SubAmp 600 Reference In-Wall Subwoofer Amplifier
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DEFINITIVE TECHNOLOGY SubAmp 600 Reference In-Wall Subwoofer Amplifier

DEFINITIVE TECHNOLOGY SubAmp 600 Reference In-Wall Subwoofer Amplifier

Availability: IN STOCK, ships out in 1-2 Business Days. ALMOST SOLD OUT!
31% off msrp
Item Condition:
Definitive Technology Factory Refurbished
Manufacturers Warranty:
1 Year Definitive Technology
Manufacturers Part #:
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The SubAmp 600 puts control at your fingertips, with two discrete high-powered amplifiers in one convenient housing. Built to bolster the Definitive IWSub 10/10 and IWSub Reference in-wall subwoofers, this versatile outboard amplifier offers greater placement flexibility and optimal power for effortlessly driving one or two IWSubs in the same room or different zones.

  • In-wall subwoofers reach incredible lows with this outstanding outboard amplifier
  • Integrated dual amplifiers drive up to two subwoofers for maximum low-end control
  • Volume, low-pass crossover and phase adjustments allow you to fine tune the room
  • 5-way binding posts guarantee an optimal, secure connection

Convenient Size

High-powered amplifier and electronic crossover fits easily on a shelf or audio equipment rack to power Definitive In-Wall Subwoofers.

Understated Performance

Two discrete high-powered amplifiers with simple connections take deep bass impact to new heights.

Unprecedented Control

Dial in your system your way with volume, low-pass crossover and phase all easily adjusted with convenient, front-panel control knobs.

Solid, Stable Connections

5-way binding posts ensure the most secure speaker connections possible.





Low Pass Filter

40 – 150 Hz, Continuously Variable

Low Pass Filter Slope

12 db per Octave

Static High Pass Filter

80 Hz (Active on High Level Outputs Only)

Static High Pass Filter Slope

12 db per Octave


Phase Control

Phase Settings

0 – 180 degrees, Continuously Variable


Remote Switching

Remote Power Input

12 volt Trigger (1/8″ Mini Plug)


Audio Inputs

LFE input

1 (RCA)

Speaker Level

2 Pair (Speaker Cable)

Stereo Line Level

2 (RCA)


Audio Outputs

Speaker Level

4 Pair (Speaker Cable)



Power Cycle


Switched or Auto On/Off: Signal Sensitive


Power Requirements


110 volts A/C




6.3 amp 250 volt Slo Blo



Product Weight

Out of Box

25 lbs



Cabinet Dimensions


3 7/16″ (8.73cm)

Height with Feet

3 11/16″ (9.37cm)


17 1/16″ (43.34cm)

Width with Rack Mount

19 1/16″ (48.42cm)


9 5/8″ (24.45cm)



Internal Amplifier


2 (Dual Mono)

Power (One Channel Driven)

275 watts

Power (Two Channels Driven)

230 watts

Item Condition

Item Condition

Definitive Technology Factory Refurbished

Re-certified products are returned/open box products that may have been repaired (if necessary) and certified by Definitive Technology to match Definitive’s performance, functionality, and reliability standards of new product. Re-certified products may have minor cosmetics blemishes and/or imperfections, unfortunately we can’t provide specific details. We DO NOT sell physically damaged products. All products are rated a 9 or better on a scale of 1-10. You should expect some signs of usage.

The manual and accessories are included with most of our re-certified items, and packaging may or may not be original. Cosmetic blemishes and imperfections are not covered by the warranty and are considered normal. Definitive Technology, Inc., warrants to the original retail purchaser only. This warranty will terminate automatically prior to its stated expiration if the original retail purchaser sells or transfers the product to any other party.

Definitive Technology, Inc., warrants, to the original retail purchaser only, that the HOME LOUDSPEAKER(S), and PASSIVE CROSSOVER COMPONENT(S) on this Definitive Technology Loudspeaker Product will be free from defects in material and workmanship for a period of one (1) year from the date of original retail purchase from Accessories4less.

Extended Warranties

Extended warranties

Get extra protection for your DEFINITIVE TECHNOLOGY SubAmp 600 Reference In-Wall Subwoofer Amplifier with a comprehensive service plan




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