Audioengine P4 Specifications:
2-way passive, front ported design
10-125W per channel
4" Kevlar woofers 3/4" silk dome tweeters
9.5mm thick MDF cabinets
Gold-plated, 5-way binding posts
2.75 kg (6 lbs)
7.25 kg (16 lbs)
228 (H) x 140 (W) x 165 mm (D) (9 x 5.5 x 6.5")
330 (H) x 460 (W) x 228 mm (D) (13 x 18 x 9")
Satin Black, Hi-Gloss White, Solid Carbonized Bamboo
The P4 speakers include two standard 1/4" threaded inserts on the rear panel and another insert on the bottom of each P4 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 P4 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.
To use the P4 speakers with the S8 you would need an amp, like our N22, to supply power to the P4 speakers and connect to the S8.
The P4 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.
The P4 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.
The P4 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. Check out our N22 amp for a great setup.
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.
If the problem persists please provide us with the results of your troubleshooting. Please also include the date, purchase location, and serial number for warranty purposes. If you live outside of the continental US you will need to contact your dealer or our distributor in your country for further assistance.