JBL Stage A120P
3.3 (8)
Write a review
JBL Stage A120P 12-inch (305mm) Polycellulose Low-Frequency Woofer - Image

12-inch (305mm) Polycellulose Low-Frequency Woofer

JBL Stage A120P Two-tone Unique Design for wood - Image

Two-tone Unique Design for wood


Specs & Downloads




Designed and engineered in JBL’s world-famous acoustic engineering facility in Northridge, California, the Stage A120P is the 12-inch (300mm) 500W powered subwoofer of the JBL Stage Series.

General Specifications

12" 500 Watts powered subwoofer

12" (305mm) Polycellulose Low-Frequency Woofer

250W RMS (500W Dynamic)
Frequency Response
32Hz – 150Hz
Crossover Frequencies
50Hz – 150Hz (variable) 24dB/octave
Auto Power, Crossover, Level, Phase
1 x Line-Level LFE Input
Enclosure Type
Bass-Reflex via Rear-Firing Tuned Ports
Power Requirement
120V, 60Hz (US) 220-230V, 50/60Hz (EU)
Power Consumption (Idle/Full/Power)
<0.5W (standby) / 335W/2A (max – 230V) / 335W/4A (max – 120V)
Dimensions (W x D x H)
370 x 420 x 395mm
41.09 lbs (18.64kg)

Documents & Downloads

Reviews and Q&A

Customer Reviews

Rated 5 out of 5 by from Perfect Super thumping thundering clear deep bass sound shakes house
Date published: 2021-03-09
Rated 1 out of 5 by from Quit after 7 days I legit received this speaker 7 days ago and hooked it up. Came home from work today to listen to music and it doesn’t work. Power is on, everything is connected correctly, was working fine before, now it won’t produce sound. I’m really upset.
Date published: 2021-04-05
Rated 1 out of 5 by from 5 Months and it's dead I bought five months ago and boom... dead. No longer working. Now I'll test the after sale services
Date published: 2020-10-06
Rated 5 out of 5 by from Amazing sub! Reminds me of the Studio SUB 260P which is a masterpiece!
Date published: 2022-02-27
  • y_2022, m_12, d_6, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.34
  • cp_2, bvpage2n
  • co_hasreviews, tv_0, tr_9
  • loc_en_GB, sid_stagea120p, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_jbl
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getReviews, 4ms
  • reviews, product

Product Q&A

Will this sub match with L890 tower speakers?

Asked by: Jay09
Yes, the JBL Stage A120P would work well with the L890 speakers. Since it's a powered subwoofer, you can adjust it's volume to complement with the rest of the system.
Answered by: Rhae
Date published: 2021-06-06

No sound coming from sub. Light is blue but no sound coming from it. Could it be a blown fuse? if so how can it be changed.

Asked by: Anonymous
There would be no power if it's a blown fuse. You may isolate the issue by connecting it to a different source or using a phone with a 3.5mm to RCA cable just to see if the powered subwoofer still amplifies the signal. If there's still no sound and it's less than a year, please contact the point of sale so they could guide you where to take it for repair.
Answered by: Jem at Customer Support
Date published: 2021-06-06

Is there a fuse that can be replaced in the subwoofer?

Asked by: kingofpayne
Thanks for reaching out. We want you to get the most out of our product. It would be best if we can work with you directly to get more information and to do troubleshooting with your JBL Stage A120P. Please reach out to JBL Customer Service for technical support and assistance.
Answered by: Customer Support
Date published: 2022-08-08

i have a older model jbl soundbar will it connect to this sub woofer via bluetooth or will it connect like the old subwooofer that came with the soundbar ..? Im getting a new subwoofer because other broke but wanted to see if its compatibale with my old s

Asked by: edd24
Our JBL Stage A120P is not Bluetooth enabled so connecting this subwoofer to a Bluetooth enabled soundbar is not possible. In order for us to answer your question accurately, we'll need more information about the older soundbar you plan to pair with this subwoofer. Please contact our customer support for further assistance. https://bit.ly/2WocMfi
Answered by: Ray at Customer Support
Date published: 2021-06-06

What center speaker would you recommend with the JBL Stage A120 Sub and the JBL 230 Studio Bookshelf speakers

Asked by: Ralph59

Is this compatible with bose s1 pro?

Asked by: Milo
  • y_2022, m_12, d_6, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.34
  • cp_2, bvpage2n
  • co_hasquestionsanswers, tq_14
  • loc_en_GB, sid_stagea120p, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_jbl
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getContent, 5ms
  • questions, product