THIEL PowerPlane 1.2

In-wall speaker

  • THIEL PowerPlane 1.2

    Grille included, not pictured


Our take on the THIEL PowerPlane 1.2

by Amanda P.

THIEL's speakers are world-renowned for high-performance sound, innovative engineering, and exquisite craftsmanship. The PowerPlane 1.2 in-wall speaker is no exception. It uses an advanced design and high-end build to deliver dynamic, accurate sound with your favorite music and movies. Plus, it installs neatly in your wall, with a paintable aluminum grille that blends with your décor.

High-end cabinet and driver design
The 1.2's rigid aluminum cabinet combats unwanted resonance for better sonic accuracy. A 6-1/2" aluminum woofer delivers full-bodied lows and mids, while a 1" aluminum tweeter produces crystalline highs. The drivers feature short voice coils inside a long magnetic gap, eliminating distortion caused by variances in magnetic strength. Plus, the drivers are coaxially mounted, allowing the sound from both to reach your ear at the same time. The result is noticeably more open, realistic sonic imaging.

Read more

A sophisticated crossover for spacious, lifelike sound
The "unsung hero" of any speaker is the crossover — it directs the right frequencies to the right drivers so you won't have a tweeter trying to reproduce bass and a woofer trying to reproduce highs. THIEL meticulously engineered their first-order crossover to achieve tonal neutrality, for sound that's pure, uncolored, and faithful to the original signal.

Got wire?
Most speakers don't include any. Learn more about in-wall wiring at the Crutchfield Learning Center.
Shop our selection of in-wall speaker wire.


  • 1" aluminum tweeter
  • 6-1/2" aluminum midrange
  • Coherent Source® technology
    • drivers coaxially mounted for time coherence
    • first-order crossover for phase coherence
  • built-in aluminum cabinet
  • short coil/long gap driver design eliminates distortion caused by variances in magnetic strength
  • handles up to 200 watts
  • frequency response 75-20,000 Hz (±3dB)
  • sensitivity 89 dB
  • 4-ohm impedance — suited for high-current amplifiers
  • paintable aluminum speaker grilles
  • cutout dimensions: 9"W x 15-1/4"H
  • mounting depth: 4"
  • warranty: 10 years
  • Our 60-day money-back guarantee
  • sold individually

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Enclosure Type In-wall
Video Shielded Yes
Tweeter Dome
Midrange Size ---
Woofer Size 6.5
Woofer Composition Aluminum
Woofer Surround Rubber
Power Range (Watts) 30-200
Sensitivity 89 dB
Impedance (Ohms) 4
Frequency Response 75-20kHz
Connector Type Binding post
Bi-Amp Inputs No
Parts Warranty 10 Years
Labor Warranty 10 Years
Product Research
What's in the box?

Download owner's manual

  • In-wall loudspeaker
  • Magnetic grille
  • Template
  • Paper painting mask
  • Owner's Manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Overview: The THIEL PowerPlane 1.2 is an in-wall loudspeaker designed to provide much higher levels of sonic performance than other in-wall speakers available today. When space is a factor, the new PowerPlane 1.2 delivers the most realistic sound possible from the smallest area. The second generation 1.2 is built with an aluminum enclosure to significantly improve clarity and dynamics, and is 20 percent smaller in size than it's predecessor, making it much less visible and easier to integrate into your home. Using the same high quality components and innovative engineering techniques used in THIEL's floor-standing and bookshelf models, such as coaxial/coplanar driver mounting, ultra-low distortion motor systems, aluminum diaphragms, and phase coherent crossover design, the two-way PowerPlane 1.2 is a true high performance in-wall speaker for listeners who wish to have great sound in every room of their home.

Mounting Options


High Output, Low Distortion Drivers: The PowerPlane uses a very low distortion, short coil/long gap, high output, metal diaphragm 6.5-inch woofer that is coaxially mounted with a special 1-inch, high output, low distortion metal dome tweeter.

Time And Phase Coherent: As with all THIEL loudspeakers, the PowerPlane is completely time and phase coherent for much greater sonic realism. THIEL's Coherent Source technology achieves the elimination of both time and phase distortions that cause alterations in the reproduced musical waveforms of most loudspeakers. Eliminating these distortions results in enhanced realism, clarity, transparency and immediacy as well as improved imaging and soundstaging in both the lateral and depth perspectives. Phase coherence in the PowerPlane is achieved by utilizing a sophisticated first-order electrical crossover system in conjunction with unusually wide bandwidth drivers. Time coherence is achieved by coaxially mounting the tweeter and woofer to cause the sound energy from each to reach the listener at the same time.

Enclosure: Unlike many conventional, backless in-wall loudspeakers, the PowerPlane 1.2 is self-enclosed with a aluminum cabinet. This design feature is very important for sonic excellence as it prevents unwanted vibration from the cabinet itself and from being transferred to the room's walls, which would obscure detail and color the sound.

Grille: The PowerPlane 1.2's grille is magnetically attached to the cabinet and can be removed by gently prying the grille forward.

Connections: The PowerPlane 1.2's input terminals are located on the back of the speaker cabinet. The PowerPlane 1.2 uses binding posts that accept several types of wire connections (will not accept dual banana plug connectors but single banana plugs can be used). The input terminals are designed to be easily tightened by hand or a 1/2 inch nut driver can be used. The speaker's input terminals are color coded to facilitate that both speakers in a stereo system are wired in the same polarity for maximum speaker performance. The speakers should be connected to the amplifier with high quality cable to ensure minimal loss of power and proper control by the amplifier.

Note: The PowerPlane 1.2 is a very high quality sound reproducer and will benefit from use with the best associated equipment. Since it is extremely accurate, it will reveal sources of distortion generated elsewhere in the system. For example, distortion resulting from poor recordings or inferior electronics will be reproduced accurately. Also, the quality of the interconnect cables and speaker cables will significantly effect the performance of the system

Power Requirements: It is important to have enough power to play at the level you desire without distortion. If high sound levels are desired, the PowerPlane 1.2's are designed to be used with amplifiers rated up to 200 watts per channel (into 8 ohms). Since the PowerPlane 1.2 provides a 4 ohm load to the amplifier, it is important that the amplifier be rated to deliver at least 50 percent more power into a 4 ohm load than it does into an 8 ohm load. The PowerPlane is of above average efficiency (89 dB) and therefore requires less than an average amount of power for average volume levels

Break-In Period: The PowerPlane 1.2's, like most speakers, require a period of playing before they perform optimally. The amount of time depends on how loudly the speakers are played; more time is required if played softly, less if played loudly. At least 50 hours at moderately loud levels are required before the speaker is performing near optimum. You should notice even more improvement after 100 hours of playing.

10 Year Warranty: THIEL warrants every THIEL model PowerPlane 1.2 loudspeaker against defects in materials and workmanship to the original owner for a period of ten years from the date of purchase. THIEL will, at no charge, replace any defective part and make any repairs necessary to ensure its proper performance when the defective unit is returned to us postpaid. This warranty does not cover damage due to accident or abuse and is void if the unit has been tampered with. This warranty is automatic and no registration is required.

Mounting Options

Speaker Placement: The PowerPlane 1.2 is designed to perform well in a variety of locations throughout the room. It can be mounted in walls, ceilings, or in an enclosed cabinet. Because of the coaxial/coplanar driver mounting, the PowerPlane 1.2 can be oriented both horizontally or vertically. For optimum performance, the PowerPlane 1.2 should not be placed very near room corners or where furniture may obstruct the speaker's output. The PowerPlane 1.2 can be used as front, center, or rear-channel speakers in home video, music, and multichanel systems. They can also be used alone or in pairs throughout the home in bedrooms, kitchens, bath, and offices for outstanding sound everywhere. Its subtle, architectural design and paintable surface integrates well with almost any home decor. The PowerPlane 1.2 can be mounted horizontally or vertically in walls, ceilings, and enclosed cabinets.

Note: It is important that the PowerPlane 1.2 be mounted rigidly to prevent unwanted vibration, therefore mounting only to the wall material, like drywall, is not recommended. Please consult your THIEL dealer for professional installation. A wall opening template is included with the speaker.

Paintable: The PowerPlane 1.2 is shipped with an off-white finish, but can be painted any desired color. To protect the driver during painting, first remove the grille and then remove the driver trim ring by removing the six ring mounting screws. Place the included paper painting mask over the driver, then place the trim ring on top of the mask.

Dimensions: Dimension of speaker when mounted horizontally. Speaker can also be mounted vertically.

  • Speaker Frame: 15.25" wide x 8.875" tall
  • Mounting Depth: 3.875"
  • Cutout Opening: 14.125" wide x 7.75" tall
Be the first to review this product
Great Gear Giveaway rewards card

Submit a review and then enter to win a $500 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Add accessories for the THIEL PowerPlane 1.2

UL-listed speaker wire is designed to be run through walls and is building code compliant. See all categories & accessories

AudioQuest FLX-14/2 14-Gauge 2-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (125 feet)
51 people say
Your Price: $129.99
Add to Cart
AudioQuest FLX-14/4 14-Gauge 4-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (125 feet)
2 people say
Your Price: $219.99
Add to Cart
AudioQuest FLX-16/2 16-Gauge 2-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (125 feet)
28 people say
Your Price: $99.99
Add to Cart
Niles SVC100K Sliding stereo volume control with impedance magnification
Your Price: $129.99
Add to Cart
Niles VCS100K Stereo volume control with impedance magnification
4 people say
Your Price: $99.99
Add to Cart
Russound ALTx-2D Stereo volume control with impedance matching and Decora®-style wall plate
2 people say
Your Price: $39.99
Add to Cart
Russound ALTX-WIRI-2D Electronic volume control with IR sensor and impedance magnification
Your Price: $159.00
Add to Cart
Niles SS-4 4-pair speaker selector
22 people say
Your Price: $129.99
Add to Cart
Niles SS-6 6-pair speaker selector
8 people say
Your Price: $174.99
Add to Cart
Russound SS-4.2 4-pair speaker selector
6 people say
Your Price: $119.00
Add to Cart
Russound SS-6.2 6-pair speaker selector
1 person says
Your Price: $159.00
Add to Cart
Niles SSVC-2 2-pair speaker selector with volume control
4 people say
Your Price: $249.99
Add to Cart
Niles SSVC-4 4-pair speaker selector with volume control
7 people say
Your Price: $399.99
Add to Cart
Niles SSVC-6 6-pair speaker selector with volume control
6 people say
Your Price: $474.99
Add to Cart
Russound SDB-2.1 2-pair speaker and source selector with volume control
1 person says
Your Price: $199.00
Add to Cart
Russound SDB-4.1 High-power 4-pair speaker selector with volume control
1 person says
Your Price: $399.99
Add to Cart
Russound SDB-6.1 High-power 6-pair speaker selector with volume control
Your Price: $499.99
Add to Cart
Niles VCS HUB8 8-speaker pair connecting block
6 people say
Your Price: $79.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

For a more in-depth review and enhanced detailed information on the THIEL PowerPlane 1.2, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_684PPL12/THIEL-PowerPlane-1-2.html ).