Your Price: $799.00
Part Number:Q1-4500D.1

The NEW Q1-4500D.1 is the revision to our beloved Q1-3500D.1 amplifier.

It is our most powerful amplifier capable of up to to 7500 watts @ 1ohm @ 18volts for those guys and ladies who want to push their systems to the limit. You can strap a pair of Q1-4500D.1'S for a woofer busting 15000 watts @ 2ohm. Born in the same place as our popular Q1-1200D, Q1-2200D and Q1-3500D.1 and built with the very best parts money can buy the Q1-4500D.1 offers the best watt per dollar value in its power range.

You MUST have an upgraded electrical system sufficient to provide the amperage required to handle the  amp fuse rating of the Q1-4500D.1 ( amps for a pair) in order to satisfy this beast.

  • The Q1-4500D.1 is fully stable down to one ohm.
  • Daisy Chain connection of two Q1-4500D.1 stable down to two ohms
  • Four way protection circuits: Speaker shorts, DC offset, High/Low voltage, Thermal protection
  • High current MOSFET switching devices
  • 24db/oct slope crossovers, Fully adjustable Low Pass Filter and Subsonic Filter
  • Remote Gain Knob Included

Digital Monoblock 1 ohm stable
Input Sensitivity0.2V ~ 5V
Variable Low Pass Filter20Hz ~ 200Hz @ 24dB/Slope
Subsonic Filter10Hz ~ 50Hz @ 24dB/Slope
2 amp linkable connectionOutput Master / Input Slave
Clipping Display LedOn Remote Gain Control
Signal to Noise Ratio85dB <
Damping Factor250 <
Efficiency85% at 4 ohm <
External Fuse Rating400 Amp in-line, 800 for pair
Tested Voltage14.4V
Working Voltage9.5V ~ 18.5V**
4 ohm power @ 12V @ 1% THD750W x 1
4 ohm power @ 14.4V @ 1% THD1400W x 1
2 ohm power @ 14.4V @ 1% THD2280W x 1
1 ohm power @ 14.4V @ < 1% THD4560W x 1
1 ohm Power @ 16V** @ 1% THD5500W x 1
1 ohm Power @ 18V** @ 1% THD6900W x 1
1 ohm Power @ 18V** @ 10% THD7546W x 1
2 ohm Linked Power @ 14.4V @ 1% THD9120W x 1
2 ohm Linked Power @ 16V** @ 1% THD11650W x 1
2 ohm Linked Power @ 18V** @ 1% THD14000W x 1
2 ohm Linked Power @ 18V** @ 10% THD15092W x 1
Dimensions (mm)657.2mm (L) x 241.3mm (W) x 66.7mm (H)
Dimensions (in)25.875in (L) x 9.5in (W) x 2.625in (H)
Power and Ground Inputs0 Gauge x 2

Product Specifications subject to change without notice.

**Any voltage ran higher than 14.4 will not be covered under manufacturers defect warranty policy.**
5 Stars
Do it yourself we
Great amp puts out tons of power would recommend for 2 hdc3's
Did you find this helpful?  16 of 16 Found Helpful
Reviewed by:  from Houston,tx. on 3/27/2016
5 Stars
I have two of these Monsters straped together @ .5 ohm Banging out two HDC4-12s, the power is ridiculous. Don't sleep on these amps. If you're looking for some power these will give any sub a workout, I give them a 10 out of 10
Did you find this helpful?  14 of 14 Found Helpful
Reviewed by:  from Massachusetts . on 7/14/2016
5 Stars
Amp is a beast. Pushes 2 hdc4 18s with ease. Very happy customer!
Did you find this helpful?  11 of 11 Found Helpful
Reviewed by:  from michigan. on 3/17/2016
5 Stars
Why wouldn't someone want this?
I used the AQ 2200 for the last 4 years and finally decided to up the ante to the SQ 4500D.1. Amazing amount of power, great for 2 HDC3 D1 18's. I can't compare to any other amps in this power range but for what it does for the dollar, you get more than your money's worth. Highly recommended!!
Did you find this helpful?  10 of 10 Found Helpful
Reviewed by:  from Chicago, IL. on 12/28/2015
5 Stars
Good power Good price
Installed the 4500.1 about 2 months ago and I must say well worth every penny. Right now I got a 300 amp alt and 3 110ah batteries wired @2ohm on 2 stroker pro 15s. Planning on getting another 4500.1 and maybe try out 2 pair of the 90.4s for my doors. Really wish they had a nice size 2 channel amp. That would be perfect.
Did you find this helpful?  10 of 11 Found Helpful
Reviewed by:  from Petersburg va. on 8/21/2015
5 Stars
Shipping was fast. She looks pretty beasty. I'm gonna run two of these on two hdc4 12s cans wait to order my other and see what they can do combined
Did you find this helpful?  8 of 8 Found Helpful
Reviewed by:  from Nc. on 2/19/2016
5 Stars
beast amp
this amp has been the best amp ive had i am running two dc audio xl 12 @1 ohm this amp can push them to the limit with no problem without getting hot
Did you find this helpful?  7 of 7 Found Helpful
Reviewed by:  from albuquerque nm. on 10/28/2016
5 Stars
It does everything out says it would. Does really like it's voltage as is stated so give the voltage to it, you won't be disappointed.
Did you find this helpful?  6 of 6 Found Helpful
Reviewed by: (Verified Buyer)  from Illinois. on 7/13/2016
5 Stars
sq beast
Very nice clean power and a whole lot of it.I have the the upgraded electrical to run this beast so if your out there and are thinking of buying this make sure you have upgraded electrical.Great job sq another great product would definitely buy from sq again.
Did you find this helpful?  6 of 6 Found Helpful
Reviewed by:  from las vegas. on 5/26/2015
5 Stars
Big Power! Awesome Amp!
i've owned a few AQ/SQ subs over the years but this is my first experience with one of their amps. For the price, you can't beat it. Big power, well built, and a clean, simplistic design. I really like the new etched Logo. A very nice touch against the black heat sink. Thank you to the guys at SQ for yet another awesome product and buying experience!
Did you find this helpful?  6 of 7 Found Helpful
Reviewed by:  from T-Town Baby!. on 5/25/2015
5 Stars
great amp
Worth every penny all my neighbors hate I have it all my friends love to hear me demo my car for them it's the loudest in my town great amplifier
Did you find this helpful?  4 of 4 Found Helpful
Reviewed by: (Verified Buyer)  from Atlanta Texas . on 9/22/2016
5 Stars
Just received my 4500.1 run it at 1ohm hands down raw power gain set at 1/4 and it's killing my 15" fosgate t2 !!!!
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Calvert Tx.. on 4/28/2017
5 Stars
Very powerful amp must have upgraded electrical remember you have to give it power to make the power will not disappoint pushing 2 hdc3 12 with no problem awesome subs by the way hell yeah soundqubed
Did you find this helpful?  3 of 3 Found Helpful
Reviewed by:  from Lindsay CA. on 3/15/2017
5 Stars
Holding up
How are these amps holding up? I just ordered 2 hsc3 12's and I'm trying to figure out what amp I want to use. Convince me to buy this amp. I don't much about them at all.
Did you find this helpful?  2 of 6 Found Helpful
Reviewed by:  from Walls ms. on 12/6/2016
5 Stars
Chris S.
This amp is a absolute beast. Make sure you have the proper electrical to support this monster. Don't cut any corners wiring this up. I have it on 2 HDC315's at 1ohm and it is giving them all they want. Love this amp!
Did you find this helpful?  1 of 1 Found Helpful
Reviewed by: (Verified Buyer)  from Greenville. on 7/1/2017

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