Pioneer TS-B400PRO

4" High Efficiency PRO Series Bullet Car Tweeter

Shop all Pioneer

4" PRO Series Car Tweeters • Aluminum Tweeter Construction • 500W Max • 200W RMS • 4 ohms Impedance • In-Line Crossover • High-Temperature Voice Coil • Aggresive Magnet

Learn more about the tsb400pro
Was $129.99 Details
Thanks , You Pay:


 with warranty

Heads up

We confirm fitment and offer accessories for speakers. Please set your vehicle first if you would like to purchase more than one tsb400pro.

Set your vehicle or Return to product page
shipping truck icon
FREE 3-day shipping to VA. Get it Tue, Sept. 26
In Stock
Brand new

No Credit Option

Flexible Lease Payments

Early Purchase Options

Quick Approval Decision

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

For over 23 years, we've been your X-Factor – the team dedicated to having the biggest impact on your shopping experience!

Award-Winning Service
FREE Shipping Orders $49+
60-Day Easy Returns
Guaranteed Lowest Price
In-House Experts



Authorized dealer

Pioneer Reference for Open Show Series

Inspired by Pioneer’s history of record-breaking SPL competition, the new P.R.O. series line of speakers is constructed with the street enthusiast in mind. With an emphasis on efficiency and power handling, the P.R.O. series lineup consists of bullet tweeters, mid bass drivers, and a subwoofer that can be mixed and matched to deliver impressive output, without requiring an impressive investment. The Pioneer P.R.O. series TS-B400PRO bullet tweeters feature aluminum die-cast chassis with titanium diaphragms backed by aggressive magnets and motor assemblies to produce a wide range of crisp, loud, and clear frequencies with up to 250 watts of maximum power handling.

General Features:

  • 4" PRO Series Car Tweeters
  • Power Handling:
    • Peak: 500 watts
    • RMS: 200 watts
  • Titanium tweeter construction
  • Aluminum die-cast chassis
  • 4 ohms impedance
  • High-temperature voice coil
  • In-line crossover filter
  • Aggresive magnet structure
  • Surface mountable design
  • Sensitivity: 106dB
  • Frequency response: 3,500-27,000 Hz
  • Top-mount depth: 2-5/8"
  • 1-year Sonic Electronix Warranty

Priced Individually
Also Found As: TSB400PRO, TS B400PRO, B400-PRO, TSB400-PRO

Specifications & Details

Compression Driver Specifications
Peak Power Handling
500 watts
RMS Power Handling
200 watts
Impedance (Per Voice Coil)
4 ohms
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Sonic Electronix

Item Details


Model Number:




Internal SKU:


Internal Product ID:


Customer Ratings & Reviews

5 star
4 star
3 star
2 star
1 star


Customer Reviews

Sort by:


Pioneer Crisp Bullet Tweeter,

The Bullet Tweeter is nice & crisp, use to have an old RCL bullet a few years back, but they stopped making that model.
Been trying to fine a replacement but a lot of these tweeters are not very crisp or high to how I would like them.
I took a chance with these with one of the reveiws I had read about these tweeters so will now get to the point.
These bullets are brilliant high & very crisp, I am old school & like my Sub Bass & high treble, I listen to Reggea, Dub, Dance music, House & Garage, Deep House so the way music sound is very important to me.
The bullets are rated at 500W peak, 200W rms, 3.5KHZ to 27KHZ & 106 db/w/m making them high frequency & very sensitive this is true.
You can here them from a distance & they chip (old school) & are very crisp.
Highly recomend them to anyone who wants proper high clean crisp old school type treble, I am also considering buying another two before they phase these out.
I am from the UK so had to buy these from America as I couldn't find any one in the UK or even Europe to purchase these item from so am happy that Sonic Electronix helped me out.
Highly recomended.

By Airash on March 7, 2014


found this helpful.


I purchesed these after going to a sound comp and hearing some pro audio. Although the ones i heard werent pioneers pioneer seemed to have some really good specs so i bought these as well as the pioneer ts-m800 pros to match and i got 2 8s and 2 4 inch tweeters per front door in a 03 excursion and the sound is impressive on a lanzar 250x4 all purchesed from sonic good prices fast shipping and good service. If your looking for impressive clear and extreamly loud this is the line for you my mids and highs can be heard crystal clear from reportedly a 1/2 mile away inside a well built home. Down fall is the capacitor I ended up having to unsolder it and move it and was a pain to mount also had to solder leads on to the negative by the time you put a crimp style connector on a wire mounting will become imposible due to the angle and the huge magnet. Sorry for spelling errors lol.

By James on March 16, 2015


found this helpful.

By Michael on August 4, 2023 checkmarkIcon Verified purchase


found this helpful.

Great product

I bought this for a gift for my husband, he loves them. They sound great!

By Eva on January 13, 2017


found this helpful.

Similar Products

Best selling similar products

Pioneer TS-B400PRO

4" PRO Series Car Tweeters • Aluminum Tweeter Construction • 500W Max • 200W RMS • 4 ohms Impedance • In-Line Crossover • High-Temperature Voice Coil • Aggresive Magnet



Diamond Audio M1SRT

• 1" GT7 Series Bullet Tweeters
• 100 watts Peak Each
• 50 watts RMS Each
• 4 ohms Impedance


Avatar TBR-57

• 3.86" Aluminum Bullet Tweeters
• 300 watts Peak Each
• 150 watts RMS Each
• 4 ohms Impedance


Deaf Bonce MFT-25

• 2.5" Aluminum Horn Tweeters
• 70 watts Peak Each
• 35 watts RMS Each
• 4 ohms Impedance



• 1.6 Bullet Tweeters
• 280 watts Peak Each
• 140 watts RMS Each
• 4 ohms Impedance


Related Products

This item is frequently compared to these items

Rockford Fosgate Punch Pro PP4-T (Sold Individually)

1-1/2" Punch Series Car Tweeter • Aluminum Bullet Construction • 100W Max • 50W RMS • 4 ohms Impedance • Integrated 6dB High-Pass Crossover • High-Temperature Voice Coil • CEA-2031 Compliant



TS-B400PRO small

Item added to your cart.

Price: $59.99

Add vehicle

Save up to 10 different vehicles in your garage

< Back

  • Owner’s manual
  • Vehicle’s insurance card
  • Vehicle registration
  • Vehicle produced after 2005: Inside driver’s side door
  • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment