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SQ1.1 Class D Monoblock Subwoofer 12v Power Amplifier With DSP & PC Software Control 990w Verified RMS Power Output

World RRP: £371.99


Product code: SQ1.1

The SQ1.1 is a powerful Class D monoblock, combined with the brain of a genius. This amp is capable of controlling your subwoofer with great authority despite compact dimensions. The 1500w RMS @ 2 Ohm figure is impressive in isolation but the sledgehammer transient response even in demanding musical passages must be heard to be appreciated. SQ1.1 is also equipped with a full on board digital signal processing pre amp, giving you fine control over crossover and EQ settings. The Bassface SQ series is the next generation amplifier solution; created with professional installers and audio enthusiasts in mind. Moving to digital provides completely repeatable adjustments and perfect accuracy, as well as on the fly adjustment and storage of settings. The design brief for the amps was to provide prodigious power, reliably, in a compact form whilst integrating the sound adjustment features found on top quality external processors. Additionally, the system had to be digitally programmable without having any analogue controls on the amplifier body. And we had to keep the price to a level that would still make the product relatively affordable. Equalizer: Full 31 band graphic equaliser with adjustable Q factor and .1db increments of level adjustment – independent for every single channel on the amplifier. Compares to hit and miss analogue sliders or limited source unit EQ’s with less than 10 bands of equalisation even on the very best head units. Crossover: Selectable full range/high pass/low pass/band-pass digital crossover with selectable slope up to 24 db/octave and at an incredible resolution of 1Hz! Allows optimal setup even for advanced 3 way speaker systems with band-passed mid range or mid-bass speakers. Time Delay: Each channel also has programmable time delay to equalise the sound arrival time at the drivers ears from each speaker and to minimise the impact of poor factory speaker positioning, maximising the quality of the sound imaging and staging. On the PC software the delay is selectable in cm or inches as well as milliseconds making data input a cinch (SQC.1 time delay in milliseconds only) Control: Programming is via either the (free to customers) Windows PC software or the (cost option) SQC.1 handheld programmer, depending on operator preference. With SQC.1 it is possible to have up to 2 amplifiers plugged in at once, permitting full system control from one programmer which could even be installed in the cabin at the driver’s fingertips. This is especially useful when taking advantage of the 5 system sound presets (per amplifier). The PC software is comprehensive and very nicely designed to allow user friendly control of all functions. Construction: The SQ amps are built into a chassis made from an alloy with an exceptional density – this provides excellent heat sink performance. It is very heavy and beautifully finished with a gun metal colour anodise. RCA terminals are ring bolted and the gold plated power and speaker terminals are all conveniently recessed on one side of the chassis for easy and neat installation.

Technical Highlights

  • 31 Band graphic EQ per channel - +/- 20db variable Q
  • High Pass / Band Pass / Low Pass Crossovers with 12/24db Slopes 20hz-20khz Range - 1hz Resolution
  • Individual & Group Channel Delay
  • 24bit 192khz Resolution Processing
  • 5 Non Volatile Programmable User Data Presets
  • THD @ 30% Power 4 Ohm - <0.03
  • Super Heavy Duty Heatsink Chassis
  • 24 Carat Gold Plated Terminals
  • 0.2-6V Ready Pre-Amp Stage



What's In The Box?

  • 1 x High Power Mono DSP Amplifier
  • 1 x Bass Remote1 x 5m Bass Remote Lead
  • 1 x 1.5m USB Connecting Lead
What's In The Box?

Version History

The SQ series were a bit ahead of their time, and ours. Prototyping gave us exactly what we wanted but the technology involved is so exotic it really priced these out of the cost of market we were in. V1 – Production limited to approximately 200 pieces, worldwide. Marked as discontinued 13 March 2019. Product support ended 13 March 2021.

Key Facts

Product Category Amplifiers
Version 1
Series Support Crew
First Added 19/08/2016
Last Modified 13/03/2021
Barcode 617529407199
Production Status Discontinued
Product Net Weight (g) (For Pairs/Sets/Major Parts) 4390
Product Height (mm) 65
Product Length (mm) 315
Product Width (mm) 225
Complete Product Pack Weight (g) 4810
Warranty (Months) - Private Enjoyment Use Only 12
Sold As Single

Related products

Amplifier Data

Genuine Useable RMS Power, 4Ohm Bridge (Watts), < 1%THD, 14v 400x1
Genuine Useable RMS Power, 2Ohm Bridge (Watts), < 1%THD, 14v 670x1
Genuine Useable RMS Power, 1Ohm Bridge (Watts), < 1%THD, 14v 990x1
Frequency Response (Hz) 20hz-300khz
THD Continuous 4 Ohm 1Khz/100Hz (%) <0.03%
Signal To Noise Ratio (db) >100dB
LPF (Hz) 0-20khz
HPF (Hz) 0-20khz
Bass Boost (Db) 0-20dB
Boost Frequency (Hz) 0-20khz
Subsonic Filter (Hz) 0-20khz
Audio Signal Input Voltage (V) 0.2-6v
LPF Slope (Db/Oct) 12/24dB
HPF Slope (Db/Oct) 12/24dB
Subsonic Filter Slope (Db/Oct) 12/24dB
Amplifier Topology Class D
Fuse Rating (Amps) 150
Power Wire Input Gauge (AWG) 4
Recommended Wiring Kit and Accessories PWK4.1 RCA5.1
Minimum Recommend Final Load Per Channel (Ohms) 2

Extended Amplifier Data

Verified RMS 14.4V Per Channel 4Ohm (Watts)@(THD), (Amps), (Version) 396@1%, 32 (V1)
Verified RMS 14.4V Per Channel 2Ohm (Watts)@(THD), (Amps), (Version) 667@1%, 56.9 (V1)
Verified RMS 14.4V Per Channel 1Ohm (Watts)@(THD), (Amps), (Version) 987@1%, 96 (V1)
Verified RMS 13.8V Per Channel 4Ohm (Watts)@(THD), (Amps), (Version) 363@1%, 30.7 (V1)
Verified RMS 13.8V Per Channel 2Ohm (Watts)@(THD), (Amps), (Version) 613@1%, 54.2 (V1)
Verified RMS 13.8V Per Channel 1Ohm (Watts)@(THD), (Amps), (Version) 918@3%, 93.1 (V1)
Verified RMS 12.5V Per Channel 4Ohm (Watts)@(THD), (Amps), (Version) 296@1%, 28.1 (V1)
Verified RMS 12.5V Per Channel 2Ohm (Watts)@(THD), (Amps), (Version) 504@1%, 49.8 (V1)
Verified RMS 12.5V Per Channel 1Ohm (Watts)@(THD), (Amps), (Version) 752@3%, 85 (V1)