The Audioengine P4 (AP4) is a high-performance bookshelf speaker pair with the same great looks and sound as our powered speakers. Experience the signature Audioengine sound and quality but without our built-in amplifiers. Beautiful, small, and affordable, AP4 is the perfect choice for your living room, bedroom or office and an ideal surround speaker for use with other Audioengine speakers in your home theater or stereo system.
Why passive speakers?
The AP4 passive speakers are full-sounding bookshelf speakers in a satellite-sized package. The goal with AP4 was to design a small but powerful bookshelf speaker for people that already have surround receivers or amplifiers and are looking for the same Audioengine sound and quality in a passive loudspeaker.
Already have an amplifier?
If you already have an power amp or don't want to give up that big surround receiver then the AP4 is for you. The AP4 has excellent bass response for its size, which is evident when used either as stereo speakers or as satellite surround speakers in your home theater setup. AP4 sounds great sitting on stands, on a bookshelf, or mounted on a wall using the integrated threaded inserts which are compatible with most wall or ceiling mount bracket systems.
Part of the Family
Audioengine active and passive speaker models share a similar "voicing" and overall tuning so that you are assured a matched system no matter which of our speakers or Audioengine wireless adapters you decide to add to your system.
The AP4 passive speakers are perfect for digital hybrid amplifiers (Class-D, Class-T, etc.) as well as most stereo receivers, integrated amps, and tube amplifiers. The AP4 has a 4 ohm impedance rating but will sound great when connected to almost any receiver or power amp with 4, 6 or 8 ohm speaker output impedance.
Hear the Difference
The Audioengine P4 sets a new level of quality and easy setup. Mount a pair on a wall or stand as surround speakers in a home theater system or place them on a shelf or table for a compact stereo setup. Even if you're not an audio enthusiast we guarantee you will still hear a difference!ystem or place them on a shelf or table for a compact stereo setup. Even if you're not an audio enthusiast we guarantee you will still hear a difference!
Wall or Ceiling Mount
The AP4 speakers include two standard 3/8" threaded inserts on the rear panel and another insert on the bottom of each AP4 cabinet for attaching a speaker mount or bracket. We recommend using products by companies such as OmniMount or Sanus. Before installing mounts or brackets make sure you consult all documentation and carefully follow the installation instructions.
Audioengine designs and manufactures our own tweeters, woofers, and many other critical components. In other words, these are not "box built" speakers with off-the-shelf parts but entirely custom-designed to our specifications. What we do not fabricate directly in our factory we have custom-made to our designs. The cabinets, drivers, bass port designs, and crossovers are all painstakingly tuned together for each model.
Audioengine uses audiophile quality, ferro fluid cooled, silk dome tweeters with Neodymium magnets. Silk tweeters hold up well under high power and the edge-driven design gives very smooth response. The woofers are Kevlar woven glass aramid composite with rubber surrounds. Kevlar is obviously very strong, which means that the woofer retains its shape when being driven at high levels. The speaker materials and construction are robust enough to stand up to some serious thrashing, so speaker grills aren’t needed. In other words, we did our homework on the speaker drivers and they will sound and look great after many years of use.
To minimize unwanted resonances and distortion, Audioengine cabinets have thick high-resin MDF walls with extensive internal bracing. Heavy internal sound-damping material is used to reduce unwanted sound reflections inside the cabinet. All cabinet edges are rounded which look great and reduce high-frequency diffraction effects on the front baffles. The AP4 cabinet contains tuned, front-port slots.
Both drivers are directly magnetically shielded which allow you to place the speakers within a few inches of a video monitor. This shielding also offers protection for hard drive-based digital music players.
Why don't the AP4 speakers have built in amplifiers similar to the A2 and A5 active systems?
The AP4 came about from requests from customers that already have our powered speakers and/or have a music system and needed speakers but wanted the same Audioengine sound from a passive speaker.
Is the bamboo version a veneer and does the AP4 bamboo version sound better than the black or white finished cabinets?
The AP4 enclosure is made of solid carbonized bamboo, not a veneer. The bamboo cabinets were tuned to sound the same as the MDF speakers, but the density of bamboo will give it natural acoustic advantages over MDF material.
What amplifiers work best with the AP4?
The AP4 is a very efficient speaker and designed to work well with digital hybrid amplifiers (Class-D, Class-T, etc.) as well as most stereo receivers, integrated amps, tube amplifiers, and whole-house music systems such as the Sonos ZonePlayer 120.
The AP4 is rated at 4 ohms but my receiver has speaker outputs listed as 8 ohms. Will the AP4's work with my receiver?
The lower the speaker impedance, the more current (amperage) your amp or receiver will need to provide, but most separate power amps have more than a sufficient power supply and power amp sections for driving 4 ohm loads with ease. In fact many amps will perform better with a 4 ohm load as opposed to 8 ohms if their design is robust enough to supply the extra current. A quick web search will bring up more information on this subject.
Type:2-way passive, front ported design
Sensitivity:150W peak power total (50W RMS / 75W peak per channel), AES
Nominal Impedance:4-8 Ohms
Crossover Frequency:2.8 kHz
Recommended Amplifier Power:10-125W per channel
Tweeter:3/4" (20mm) silk dome with neodymium magnets
Woofer:4" (101mm) Kevlar cone
Inputs:Gold-plated, 5-way binding posts
Weight (each):2.75 kg (6 lbs)
Total shipping weight:6.5 kg (14 lbs)
Dimensions (each): 228 (H) x 140 (W) x 165 mm (D) (9 x 5.5 x 6.5")
Shipping box dims:330 (H) x 460 (W) x 228 mm (D) (13 x 18 x 9")
Finish Options:Satin Black, Hi-Gloss White, Solid Carbonized Bamboo
Digital Home Thoughts - "Audioengine brings its legendary active speaker sound to a less expensive passive speaker. The AP4's provide great sound for your existing stereo or home theater system."
PLEASE NOTE THESE ARE PASSIVE SPEAKERS AND THEY DO NOT HAVE AN INTEGRATED AMPLIFIER. THEY WORK WELL WITH AMPLIFIERS SUCH AS THE N22.
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