Speaker Adjustments

The Ceiling Series speakers come from the factory with the tweeter facing straight out from the bafﬂe. This will result in the overall smoothest response. However, depending on your par- ticular primary listening area, room acoustics, ceiling height, or personal preference, you may ﬁnd the sound more pleasing by pointing the tweeters in a particular direction. If additional treble is desired in the primary listening area, point the tweeter towards that area; and if less treble is required, point the tweeter away. Push gently at the edge of the tweeter to point it in the desired direction. (See Diagram 2) CAUTION: Avoid touching metal dome tweeters, as damage may occur (C640 and C800).

The switch labeled TREBLE allows for 3dB of treble adjust- ment. Your speakers were shipped with the treble switch in the “-” position, providing the most linear frequency response. If you desire more treble, move the switch to the “+” position, and the tweeter will play 3dB higher. To return to the neutral setting, push the switch back to the “-” position. (See Diagram 3)

Woofer Adjustment (C640 & C800):

The switch labeled BASS allows for 3dB of bass adjustment. Your speakers were shipped with the bass set to “-”. This setting provides the ﬂattest bass frequency response. If you desire more bass, push the switch to the “+” position and the bass will play 3dB higher. To return to the neutral setting, push the switch back to the “-” position. (See Diagram 3)

Diagram 2:
Tweeter	Diagram 3:
	Diagram 3:
	Adjustment Switches
	Bass Adjustment Switch
	Treble Adjustment Switch
	Push Tweeter Here

Tweeter Adjustment (C640 & C800):

SPEAKER INSTALLATION

The unique integral four-foot mounting system incorporated into each Ceiling Series speaker allows for a quick installation by following these easy steps:

1.Remove the grille. It may be necessary to push one or two of the mounting screws and its attached foot towards the bafﬂe and against the inside surface of the grille to force the grille out of its retaining groove.

2.Attach the speaker cable (observing the proper polarity with your ampliﬁer, + to + and - to -). Make sure the left channel of the ampliﬁer is connected to the left speaker, and the right channel is connected to the right speaker.

3.Make sure the mounting feet are turned inward to clear the opening, and insert the speaker into the ceiling. Position the speaker into the hole.

Note: The ﬂange of the speaker is designed to ﬂex and conform to any small imperfections in the ceiling’s sur- face. Tighten the four screws on the front of the bafﬂe only enough to make the ﬂange become snug against the ceiling. As you tighten the screws, the feet will automatically ﬂip into an outward position (See Diagram 4), thereby clamping the drywall between the feet and the ﬂange. CAUTION: Over- tightening may warp the bafﬂe, crack the ceiling, cause the ﬂange to distort, and make the grille difﬁcult to install.

4. Push the

	grille ﬁrmly	Diagram 4:
	into the	Diagram 4:
	into the	Mounting Feet
	slot in the	Mounting Feet
	slot in the
	speaker
	bafﬂe.

PAINTING THE SPEAKERS

If you plan to paint your speakers, we recommend that it be done prior to installation. If you plan to paint your speakers sometime in the future, it is best to remove them by simply reversing the steps for “SPEAKER INSTALLATION” above.

If it is necessary to paint the speakers when they are in the ceiling, the paint masks provided in the carton must be installed between the grille and ﬂange while they are being painted with the ceiling.

Before painting your speakers, remove the material under the grilles. Once the speakers have been painted, return the material back into place.

Great care should be taken not to clog the holes of the grille, as this will reduce the sound quality of the speakers.

Proﬁcient Audio Systems recommends only light spray painting using 5 parts thinning agent to 1 part paint.

C500, C620, C610, C640, C800 specifications

Proficient Audio Systems has established itself as a leading name in the world of high-quality audio solutions, and its lineup of in-wall and in-ceiling speakers is a testament to that commitment. Among their impressive offerings, the C600TT, C800, C640, C610, and C620 speakers stand out for their outstanding performance, innovative technologies, and versatile design.

The C600TT is a premium in-ceiling speaker that boasts a 6.5-inch polypropylene woofer and a 1-inch silk dome tweeter, providing a balanced and richly detailed audio experience. One of its notable features is the True 2-Way design, which facilitates improved sound dispersion and minimizes unwanted resonance. This speaker is equipped with an adjustable tweeter, allowing users to fine-tune the audio output to best fit the acoustics of their room. Its paintable grille seamlessly blends with any decor, making it an aesthetically pleasing addition to any home.

Moving on to the C800, this in-wall speaker is designed for those looking for a more robust audio installation. It features an 8-inch polypropylene woofer coupled with a 1-inch pivoting silk dome tweeter, creating a powerful audio presence. The C800 is engineered with an advanced ventilation system that ensures efficient airflow, preventing distortion even at high volumes. Its molded enclosure provides structural integrity, which enhances the speaker's overall sound clarity.

The C640 is another highlight in this range, showcasing a 6.5-inch woofer and dual 1-inch tweeters. Its unique dual-tweeter design enhances the high-frequency response, making it perfect for audio enthusiasts who prioritize clarity in dialogue and detailed soundscapes. Like its counterparts, the C640 is also designed for seamless integration into any room, thanks to its customizable grille options.

For those seeking a compact option, the C610 and C620 speakers offer exceptional performance despite their smaller sizes. The C610 features a 5.25-inch woofer and a 1-inch tweeter, making it ideal for smaller spaces or as part of a multi-room audio system. Conversely, the C620, with a 6.5-inch woofer and a 1-inch tweeter, strikes a balance between size and audio power, making it versatile for various applications.

Overall, Proficient Audio Systems’ C600TT, C800, C640, C610, and C620 speakers combine innovative design, advanced technology, and high-quality materials to deliver exceptional audio performance. Whether for immersive home theater systems or subtle background music, these speakers provide an outstanding listening experience for any audio enthusiast.