@mike_in_nc Wrote:
@ditusa -- According to the owner’s manual, those JBLs have no crossover at all and should be used with a specific external crossover and specific amplifiers.
The crossovers are in the Crown amp design for the M-2 speakers. One Crown® iTech 5000HD power amp for each speaker, or One Crown® iTech 3x3500HD power amp for two (2) speakers. From the M-2 manual:
Specifications
| System Format | 2-Way Floor Standing or Soffit Mountable |
| HF Driver | D2430K Dual Diaphragm Dual Voice Coil Compression Driver |
| LF Driver | 2216Nd 15 in (381 mm) Differential Drive® Woofer |
| Crossover Frequency | 800 Hz |
| Frequency Response (±3 dB) | 20 Hz - 40 kHz |
| Coverage Angle | 120° H x 100° V |
| Sensitivity | 92 dB |
| Continuous/Peak SPL@ 1m | 117 dB /123 dB; 108 dB Peak SPL @ 8m |
| The System Requires | One Crown® iTech 5000HD power amp for each speaker, or One Crown® iTech 3x3500HD power amp for two (2) speakers. |
| Amplifier Power Rating | 1,200 Watts into 8 ohms |
| Input Connectors | Spring Terminals |
| Enclosure | 25 mm (1 in) MDF |
| Finish | Satin Black Lacquer |
| Included | Removable ABS Grille with Black UL Compliant Fabric |
| Dimensions (w x h x d) | 508mm x 1256mm x 355.6mm (20in x 49.5in x 14in) |
| Net Weight (each) | 58.5 kg (129 lb) |
| Maximum Peak SPL | 123 dB |
| Maximum Continuous SPL | 117 dB |
News
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April 28, 2016
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June 10, 2015
Kenny Mixx Steps Up His Game with HARMAN’s JBL M2 Master Reference Monitors
January 19, 2015
Belmont University Reopens Legendary Columbia Studio A with HARMAN’s JBL M2 Master Reference Monitors
What model is yours?
JBL model 4435 with JBL 5235 active crossover and JBL #52-5130 crossover cards design for 4430,4435 studio monitors. 😎
Mike
