Sunfire CRM-2, CRM-2C User Manual

Important Safety In struc tions

1. Read In struc tions.

2. Keep these Instructions.

3. Heed all Warnings.

4. Follow all Instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not install near any heat sources such

as radiators, heat registers, stoves, or
other apparatus (including amplifi ers) that
produce heat.

WARNING: THIS LOUDSPEAKER IS CAPABLE OF PRO­ DUC ING VERY HIGH SOUND PRESSURE LEVELS. YOU
MUST TAKE EVERY PRECAUTION TO PROTECT YOUR

HEAR ING FROM PER MA NENT DAM AGE.

Contents

Safety Instructions.........................................2

Introduction ...................................................3

Features ........................................................3

Overview .......................................................4

Rear Panel Features .....................................5

Loudspeaker Locations .................................6

Using a Subwoofer........................................8

Break-in Period .............................................9

Specifi cations ..............................................10

Troubleshooting ..........................................10

Limited Warranty .........................................11

Service Assistance ......................................11

8. Refer all servicing to qualifi ed service
personnel. Servicing is required when the
apparatus has been damaged in any way,
such as a connector is damaged, liquid
has been spilled or objects have fallen into
the apparatus, the apparatus has been
exposed to rain or moisture, does not
operate normally, or has been dropped.

9. Ob ject and Liq uid En try — Care should
be taken so that objects do not fall into
and liquids are not spilled into the inside of
the apparatus.

To fi nd out more about this and other Sunfi re products,

please visit our website: www.sunfi re.com

2

User's Manual

Introduction

Features

Dear Friend:

Thank you for purchasing a Sunfi re
XT-Series Cinema Ribbon loudspeaker.
We hope you enjoy it and the music it
makes as much as we have enjoyed
creating it for you.

The unique Cinema Ribbon design is
based on years of research into human
physiology. As an exclusive XT-Series
product, this loudspeaker follows a
great heritage of both world-class ribbon
loudspeaker designs and industry-leading
subwoofer technologies.

The CRM-2 satellite loudspeakers
and the CRM-2C center loudspeaker
are designed as a perfect match to our
True Subwoofer series, resulting in the
ultimate home theater experience... the
kind of heart-felt experience that could
only come from Sunfi re.

Unpacking

Your Sunfi re Cinema Ribbon loud-
speaker should reach you in perfect
con di tion. If you do notice any ship ping
dam age, please contact your Sunfi re
dealer im me di ate ly.

Gently lift out the loudspeaker and
remove all the packing material. It is im­ por tant to save all the packing ma te ri als
and the box in case your loudspeaker
ever needs to be moved or shipped for
repair.

Make sure that you keep your sales
receipt. It is the only way to establish
the duration of your Limited Warranty
and it may come in useful for insurance
pur pos es.

Please take a moment to fi ll out and
mail the Sunfi re Customer Response
card. Also read the serial num ber located
on the rear label and record it here:

• CRM-2 loudspeaker for front, surround,
and back surround applications

• CRM-2C loudspeaker for center chan­nel applications

• Two-way high-pressure design

• Magnetically shielded

• Waveguide-loaded Neodymium ribbon

• Dual 4.5-inch High Back-emf drivers

• 115 dB maximum output

• Ebonized Rosewood fi nish

• Gold plated 5-way binding posts

• Boundary switch compensates for dif­ferences in sound due to location near
walls

• Mounting feet supplied

• Mounting holes for optional wall and
fl oor mount brackets

Care

To maintain the loudspeaker cabinet’s

fi nish, use a soft dry cloth to clean the
sur fac es.

If your loudspeaker needs ser vic ing,

please read the Trou ble shoot ing section
on page 10. If a problem persists, please
contact your near est au tho rized Sunfi re
Dealer.

Serial Number:

Purchased from:

Date:

User's Manual

3

Overview

The Cinema Ribbons are feature­rich, high-tech, but most importantly
GREAT SOUNDING loudspeakers.
Years of research and decades of
experience have gone into these small
wonders.

The Cabinet

The Cinema Ribbons feature a carefully designed cabinet that stems from years of
research into how the box affects the sound of the loudspeaker. The specialized facets
of the Cinema Ribbon have the appearance of a Stealth airplane, and result in a loud­speaker that is free of unwanted sonic bounces.

The Ribbon – A Legacy Refi ned

The ribbon in this loudspeaker is a remarkable piece of engineering, because it has
the output capability, purity, and low distortion of a large 6-foot-tall ribbon – in fact, it is
derived from Bob Carver’s award-winning Amazing Loudspeaker from the late 1970s!
The sound from the CRM-2 ribbon is deliberately focused in the forward direction, with
very little sound going up or down – reducing refl ections off the ceiling and fl oor, that
disturb our sense of space and imaging. The CRM-2C features an integrated “acoustic
lens,” that disperses the signal for center channel applications.

The Woofers – A Legacy Refi ned

Sunfi re created the category of small-box, high-power subwoofers more than a
decade ago with the original True Subwoofer. This design relies on high-pressure, “High
Back-emf” technology that provides very high bass output from a very small box. When
migrating this subwoofer technology to the midrange and high frequencies on the Cin­ema Ribbons, you get the same advantages: high output, small size, high effi ciency, and
years of trouble-free operation.

Sunfi re has found that our ears are very sensitive to certain frequencies which our
brains use to develop clues as to the size and location of sounds. Bob Carver and team
created an electrical circuit called Sonic Holography back in the 1970s that took this
into account – and to this day it’s included on Sunfi re’s processors and receivers. In the
CRM-2 Cinema Ribbons, these critical octaves are output primarily from the two side­fi ring drivers. This introduces the room as part of the musical instrument by intentionally
bouncing the sound off of walls and fl oors, creating a time delay to enlarge the sense
of acoustic space, in all dimensions. This is a noted difference from what we looked at
previously with the ribbons – it is a very calculated (and very important) distinction. The
CRM-2C features front-fi ring drivers to maintain focus for dialog in center channel ap-
plications.

CRM-2 CRM-2C Center Channel

Conclusion

The combination of a focused, front-fi ring ribbon and the omnidirectional, side-fi ring
woofers creates a large sense of space with very precise imaging within that space.
Depending on the loudspeaker location and demo material, you also are able to discern
a sense of front-to-back depth with layered textures of musical instruments playing and
performing in thin air! Happy listening!

4

User's Manual