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View Full Version : RANE OLD SCHOOL EQ'S AND CROSSOVER MODIFiED TO 12v ( 3 pcs )



davidtemple
03-07-2012, 01:02 PM
Product Brand & Model:

RANE AC23 CROSSOVER
A PAIR OF ME30 EQ'S

THIS WAS USED BY A IASCA WORLD CHAMP, I HAVE ALL THE CABLES AND PLUGS PLUS ALL THE MANUALS AND PAPERWORK

easy to install.


Condition of all items:


USED
Total Price: :


$550 for all or $200 each Item OBO
Shipping Terms: :



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Additional info:

RANE AC23 PDF (http://www.rane.com/pdf/old/ac23man.pdf)


Features
• Stereo 2- or 3-Way, Mono 4- or 5-Way
• Linkwitz-Riley Alignment with 24 dB per Octave Slopes
• Adjustable Delays
• Infrasonic, Ultrasonic and RFI Filters
• Low & Mid Output Muting (3-Way)
• Input & Output Level Controls
• UL/CSA/CE and 100/120/230 VAC Remote Power Supplies
• ĵ" TRS Inputs & ĵ" TS Outputs
• Active Balanced/Unbalanced Inputs & Unbalanced Outputs

From the Rane Data Sheet:
General Description
The Rane AC 23 Active Crossover can be configured as a stereo 2- or 3-way, or a mono 4- or 5-way. It employs 4thorder Linkwitz-Riley filter alignments to minimize phase difficulties in the critical crossover region. The AC 23 uses ĵ" TRS connectors with balanced/unbalanced Inputs and unbalanced Outputs. The AC 23B uses XLR connectors with active balanced Inputs and Outputs.

Simply put, a Linkwitz-Riley alignment is two cascaded 2nd-order Butterworth filters exhibiting identical phase characteristics on their low-pass and high-pass outputs. This characteristic guarantees in-phase outputs at all frequencies. In-phase outputs are mandatory for proper acoustic summing of common signals from adjacent drivers in the crossover region. An added benefit of this topology is steep 24 dB per octave rolloff slopes. A slope of this magnitude guarantees drivers designed to produce a specific range of frequencies, and no more, will not be driven past their limits, thereby minimizing distortion and driver fatigue.


RANE ME30 (http://www.rane.com/pdf/old/me1530mn.pdf)

Constant-Q Bandpass Filters:
ME 15: 2/3 octave bandwidths on precise ISO centers, 25-16 kHz
ME 30: 1/3 octave bandwidths on precise ISO centers, 25-20 kHz
Boost/Cut Range: switchable ħ6 dB or ħl2 dB
Built-in Low Cut Filter: -3 dB at 20 Hz (18 dB per octave)
Built-in Ultrasonic Filter: -3 dB at 60 kHz (6 dB per octave)
Overall Gain Range: Off to +6 dB (minimum)
Frequency Response: 20 Hz to 60 kHz, +0/-3 dB
Signal To Noise Ratios: Unweighted, 20 kHz bandwidth
Boost/cut Centered, Unity Gain: 108 dB below +20 dBu
Boost/cut Centered, Maximum Gain: 107 dB below +20 dBu
THD + Noise: Less than .009%, 20 Hz to 20 kHz, @ +4 dBu (1.23V) output
Intermodulation Distortion (SMPTE): less than .005% @ +4 dBu output
Input Impedance: 20,000 ohms
Output Impedance: 100 ohms
Maximum Input Level: +21 dBu (9 Volts)
Maximum Output Level: +21 dBu (9 Volts)
Dimensions: 1.75" H x 19" W x 5.25" rack depth, all steel chassis

infamous_e46
03-07-2012, 01:06 PM
ahhh i remember reading car audio mag and being like wtf rane in vehicles lol



bump

davidtemple
03-07-2012, 01:57 PM
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davidtemple
03-07-2012, 02:00 PM
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