The Q4-90 is the most versatile amplifier in our lineup. With its feature rich design you're able to power a complete system, including the mid/highs and the sub off one amp. It features a high power 4 channel class A/B output section that delivers superb sound quality and ample power to drive multiple arrays of speakers. The Q4-90 features variable high and low pass filters that can also be used in a band pass configuration. The Q4-90 also has variable bass boost, remote gain control w/ clipping indicator, and RCA pass through jacks to optimize the amplifier for multiple types of installs.
DESIGN FEATURES
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Stable down to 2ohm Stereo or 4ohm Mono
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Stereo Audio Outputs for Daisy Chaining multiple amplifiers
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Four way protection circuits: Speaker shorts, DC offset, High/Low voltage, Thermal protection
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Double sided boards with high current MOSFET switching devices
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24db/oct slope crossovers, Fully adjustable High Pass, Low Pass Filter and Band Pass Filters
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Includes Remote Gain Knob (for use in BP/LP mode on channels 3/4)
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Specifications |
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Model |
Q4-90 |
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Length |
14" |
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Mounting Foot Length |
15.25" |
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Width |
9.50" |
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Height |
2 5/8" |
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Input Sensitivity |
8V~0.2V |
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Low Pass Filter |
50Hz ~ 5kHz |
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High Pass Filter |
20Hz ~ 5kHz |
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Crossover |
HPF/FULL/LP-BP |
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Remote Gain Control |
Included |
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Clipping Display Led |
Yes |
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Signal to Noise Ratio |
105dB |
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Damping Factor |
200 < |
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Bass Boost @45Hz |
0~18dB |
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External Fuse Rating |
40A x 2 pcs |
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4 ohm power @ 14V |
90Wx4 |
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2 ohm power @ 14V |
130Wx4 |
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4 ohm mono power @ 14V |
260Wx2 |
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Power and Ground Inputs |
4ga |
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Reward Points |
200 points will be rewarded to you when you buy this item. |
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This amp is a blessing in disguise. The reasons for this are that for the price you get superior build quality, excellent sound quality and a incredibly great price. This amp does rated power and then some. Also with the right speakers, crossover and gain settings this four channel puts out an amazingly clean signal. As a class AB amp this amp does not get too hot. It gets warm but not hot. If you want a heavy, clean old school looking four channel, then buy this SQ Q4-90. You will not be sorry.
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Reviewed by: MJH from Fullerton, CA. on 12/28/2014 |
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best 4 chan for the price! Does its power and the sound quality is amazing! If you havent gone soundqubed yet you my friend are missing out!
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Reviewed by: Kyle from San Diego, CA. on 12/7/2014 |
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