Crescendo REVOLUTION 7S3 3 way speaker system

No. The Crescendo Revolution 7S3 is an active component system with no passive crossover included or required. Each driver receives its signal directly from a dedicated amplifier channel, with frequency division handled by a DSP processor or active electronic crossover. This is the design intent of the system and the source of its tuning flexibility.6

Both are 3-way active component systems with the same 6.5 inch midbass, 4 inch midrange, and 4-ohm impedance per driver. The Crescendo Revolution 7S3 uses treated paper cones with integrated dust caps on both the midbass and midrange, while the Crescendo Revolution 5S3 uses fiberglass cones with separate fiberglass dust caps. The 7S3 midbass weighs 1625 grams (1895g with front ring) versus 1358g on the 5S3. The 7S3 tweeter uses a stainless steel housing and weighs 233g versus 118g for the 5S3 aluminum housing. The 7S3 midrange is capped at 75 watts RMS versus 100 watts on the 5S3. The 7S3 is the reference tier; the 5S3 is the performance tier.14

A minimum of 6 amplifier channels is required: 2 for the midbass pair, 2 for the midrange pair, and 2 for the tweeter pair. All three drivers are 4 ohm nominal. Recommended power is 50 to 100 watts RMS per channel for the midbass and tweeter, and 50 to 75 watts RMS per channel for the midrange. Do not exceed 75 watts on the midrange channels.22

Treated paper and fiberglass produce different tonal characteristics. Fiberglass cones are stiffer, more analytically revealing, and tend to have sharper transient response. Treated paper has natural acoustic damping built into the cone material, producing a warmer, more natural tonal character that is less fatiguing on long listening sessions. Crescendo uses fiberglass at the 5S3 performance level and treated paper with integrated dust caps at the 7S3 reference level, reflecting the different listening priorities those tiers address.30

Any active DSP providing at least 6 output channels with per-channel crossover control, time alignment, and equalization will work. Audio Intensity recommends Goldhorn DSP processors for this application. Goldhorn provides the active crossover management, time alignment, and parametric equalization the 7S3 requires. Audio Intensity is the Original US Importer of Goldhorn DSP and provides configuration guidance for 7S3 installations.38

Crescendo does not publish fixed crossover points, as active systems are tuned to the specific vehicle and mounting locations. Common starting points for a 3-way door-kick-sail layout are midbass high-pass at 80-100 Hz with low-pass at 300-500 Hz, midrange band-pass from 300-500 Hz to 3-5 kHz, and tweeter high-pass from 3-5 kHz up at 24 dB per octave or steeper. Final crossover points should be set by measurement and listening in the installed vehicle.46

The 4 inch midrange driver in the Revolution 7S3 is rated at 50 to 75 watts RMS nominal power, reflecting the thermal and mechanical limits of the treated paper cone and neodymium motor at the 4 inch scale. Exceeding 75 watts per channel on the midrange risks thermal damage to the voice coil. Set the midrange amplifier channel level via DSP to stay within this limit rather than relying on amplifier gain. A good 6-channel amplifier at 50-75 watts per channel is appropriate for the midrange channels.54

The Crescendo Revolution 7S3 carries a 1-year limited warranty against defects in materials and workmanship when purchased from an authorized Crescendo dealer. Audio Intensity is an authorized dealer. Every set we sell is brand new current production with full warranty coverage and lifetime tech support including DSP configuration assistance.62