Rock your ride with four channels of built-in MOSFET high power from Alpine's CDM-9821 CD receiver! The Bass Engine® feature lets you choose which bass and treble frequencies get adjusted (and how wide or narrow the bass adjustment is), so you get a more effective match to your vehicle's acoustics.
CD-R and CD-RW discs are no problem for this classy deck it plays your mixes flawlessly. The sensitive MaxTune radio tuner pulls in your favorite AM and FM stations like a champ. Add an Alpine 6-disc CD changer, and your road trips will fly by. You can add extra bass to your car by connecting an amplifier/subwoofer combo to the CDM-9821's preamp outputs.
Details:
- detachable face
- MaxTune tuner
- 12 FM/6 AM presets
- plays audio CDs, CD-Rs, and CD-RWs
- Bass Engine (bass center frequency, width, and level, plus treble center frequency and level adjustments)
- CD changer controls for the CHM-S630 6-disc changer (will control the CHA-S634 6-disc changer with optional M-Bus/Ai-Net cable)
- optional auxiliary input
- source tone memory
- preamp outputs
- MOSFET internal amp
- clock
- 16 watts RMS/45 peak x 4 channels (CEA-2006 Compliant)
- CD frequency response 5-20,000 Hz
- CD signal-to-noise ratio 105 dB
- FM sensitivity 9.3 dBf
- warranty: 1 year
- Want more peace of mind? Extended Service Plans Available
Installation Details
To install this product, you’ll have to modify your vehicle.Cutting (more than a quarter of an inch) of your car's trim panel is required.
Top of page
Learning Center

- CD Receivers Shopping Guide
- With so many in-dash CD receivers to choose from, how do you pick the right one? Answering these questions...
Learn more about Car Receivers
No Interest If Paid Within 6 Months*
* Valid on qualifying purchases made between 12/29/09 – 3/31/10 when you use your Sony Financial Services credit card account.
On promo purchase balance, monthly payments required, and no finance charges will be assessed if:
(1) promo purchase balance paid in full in 6 months.
(2) all minimum monthly payments on account paid when due, and
(3) account balance does not exceed credit limit.
Otherwise, promo may be terminated & finance charges assessed from purchase date.
On promotions requiring a minimum payment, payments over the minimum will usually be applied to those promo balances
before non-promo and other balances. If you have a non-promo balance, this may reduce the benefit from the promo. If you want
to change this payment allocation, please call Customer Service. Standard terms apply to non-promo purchases and optional
charges. Promo purchases on existing accounts may not receive full benefit of promo terms, including reduced APR if applicable,
if account is subject to delinquency pricing. As of 12/01/09 APR 23.99% and on all accounts in default 29.99%. Minimum
Finance Charge $2.00. Subject to approval by GE Money Bank.
Offer subject to termination at any time without prior notice.