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Pioneer DEQ-S1000A Compact 4-channel car amplifier with digital signal processing — 14 watts RMS x 4
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Pioneer DEQ-S1000A
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Made to improve your sound
You want better sound but can't change the radio in your vehicle? You can still improve the sound quality and fidelity of a standard car audio system with the addition of Pioneer's DEQ-1000A 4-channel amplifier and digital sound processor. The amp can pump out 14 watts RMS to each front and rear speaker, so you'll be able to hear your music clearly over road and wind noise.
Sound processing
In addition to giving you more volume, this amp/processor lets you adjust all the fine details of your music's sound, using 31-band equalizers, high- and low-pass filters, time alignment, and more. You can even eliminate any peculiar factory EQ and time alignment settings, before applying your own sonic improvements.
Can stand alone with more power
The DEQ-1000A has speaker-level inputs for installing with a factory radio, as well as RCA inputs when using an aftermarket receiver. The processor features six high-level RCA preamp outputs, so you can add your own more powerful amplifiers to the mix. You can set these outputs to drive front and rear speakers with a sub, or for a 3-way system using tweeters, midrange drivers, and a sub.
Smartphone control
You control the processing using Pioneer's Sound Tune app on your smartphone connected via USB. You can also stream music from your device into the system using this connection. The app is available for both Android and iPhones.
Product highlights:
- compact 4-channel car amplifier with digital signal processing
- 14 watts RMS x 4 at 4 ohms (4-8 ohm stable per channel)
- non-bridgeable
- 3 pairs of 4-volt processed preamp outputs (Front/High, Rear/Mid, Subwoofer)
- channels can be set for 2-way (front, rear, sub) or 3-way (network) operation
- digital signal processing control by Pioneer Sound Tune app on your smartphone via USB connection
- works with Android and iPhones
- controls include 31-band EQ, time alignment, and special effects
- source calibration (cancels factory time alignment & EQ)
- preamp and speaker-level inputs
- wiring and hardware not included with amplifier
- 12-gauge power and ground leads recommended
- fuse rating: 10A x 1
- dimensions: 6-7/8"W x 1-5/8"H x 4"D
- warranty: 1 year
- MFR # DEQ-S1000A
What's in the box:
Digital signal processor
- Wireless remote control
- Infrared remote sensor with attached 79" cable (3.5mm plug)
- Circular dual-sided 3M adhesive
- 5' USB extension cable (Male Type A USB on one end and female Type A USB on other end)
- 5' Power/signal harness (16-pin plugs on each end)
- 5' Light green parking brake lead with 2-pin connector on one end
- 2 Right angle mounting brackets
- 4 M4 x 8mm machine screws
- 4 Self-tapping screws (1/2" length)
- Instruction Manual (Eng/Fren)
- Instruction Manual (Spanish)
- Limited Warranty sheet
- Recommendation on the volume adjustment
30-Day Return Policy
At Fuego Bass Shop, we want you to be fully satisfied with your purchase. You can return most products within 30 days of delivery for a refund or exchange.
Please note: Any returns with physical damage or missing original packaging may incur a deduction.
Restocking Fee: A 15% restocking fee will be deducted from your refund to cover handling and restocking.
Refunds will be processed to your original payment method within 5–7 business days after we receive and inspect the returned item.
We ship within the United States (excludes recipients in Alaska, Hawaii, Puerto Rico, U.S. Virgin Islands, and Guam).
At Fuego Bass Shop, we understand the thrill of receiving your car audio equipment quickly. Our shipping process is designed to ensure your order arrives safe, fast, and ready to pump bass.
Most orders are processed within 1–2 business days. Standard shipping usually takes 3–7 business days depending on your location. Expedited shipping is available for select items during checkout.
Once your order is shipped, you will receive a tracking number via email so you can follow your gear every step of the way. Our packaging is designed to protect high-performance audio equipment from bumps, vibrations, and shocks during transit.
Please note: Delivery times may vary during holidays, promotions, or due to carrier delays. We highly recommend verifying your shipping address before completing checkout to avoid delays.
If you have any questions about your shipment or need assistance, our support team is ready to help. We want your experience with Fuego Bass Shop to be as powerful and smooth as our bass systems!


