MACKIE SRM 450 V3 Active 2-Way Loudspeaker 12″ 300W

The tops of the LDBLOCKX Power Tower are fitted with 12" custom made midrange speakers and a 1" Celestion Driver, they are driven by a 450 W RMS Bi-Amp amplifier producing a maximum sound pressure level of 128 dB.

• Model Name: LDATOP12
• Type: Bassreflex
• Components:
  • Woofer: 12" Custom Made
  • Compression Driver: 1" Custom Made
  • Amplification: Class A / B (Bi-Amp)
• Dispersion: 60° x 40°
• Power (RMS): 350 W + 100 W
• Frequency Range: 80 Hz - 20 kHz
• SPL (1 W/ 1 m): 101 dB
• Max SPL: 128 dB
• Protection: Limiter, Thermal, DC, Short circuit, HF
• Controls: Main Volume, Tweeter Volume, switchable High Pass (80 / 120 Hz), On/Off Switch
• Indicators: Power, Limiter, Signal, Protect
• Connectors:
  • Input: Line: XLR + Jack 6,3mm (Combo)
  • Output: Line: XLR
• Power Supply: Transformer
• Cabinet Material: 15 mm Plywood
• Cabinet Surface: Painting
• Dimensions (W x H x D): 450 x 500 x 520 mm
• Features: Ergonomic milled handles

Features

    400 Watt digital bi-amplification
    127 dB max spl
    Wide dispersion 90 x 60 constant directivity horn
    12" High power woofer, 2.5" voice coil
    1" Mylar dome, high frequency driver
    DSP processing, boost eq, soft limiter and protection
    Xlr/jack input, xlr signal output

Acoustical Specifications

    Frequency Response -3 dB: 50 Hz ÷ 20 kHz
    Max SPL: 127 dB
    Horizontal coverage angle: 90°
    Vertical coverage angle: 60°
    Compression Driver: 1" 1.4" voice coil
    Woofer: 12" 2.5" voice coil

Input/Output Section

    Input signal: bal/unbal
    Input connectors: xlr-jack
    Output connectors: xlr

Processor Section

    Crossover frequencies: 1800 Hz
    Limiter: Fast limiter, RMS limiter
    Controls: Flat, Boost

Amplifier Specifications

    Total power: 400 W
    High frequencies: 100 W
    Low frequencies: 300 W

Cabinet

    Cabinet Material: Composite PP
    Hardware: 2 x M10 flying points
    Handles: 1 on top, 2 on sides
    Pole Mount/Cap: yes
    Grille: steel
    Colour: Anthracite grey

Physical Specifications

    Height: 637/25 mm/inch
    Width: 384/15.11 mm/inch
    Depth: 363/14.2 mm/inch
    Net Weight: 17.2/37.91 kg/lbs

Key Features:
- Compact Powered bi-amplified
full-range loudspeaker with JBL
DrivePack® technology for portable or
installed use
- Optimized for both portable/rental or
permanent-venue use
- 1750 watts peak output power,
875 watts continuous
- 12-inch Differential Drive® lowfrequency
driver for extended lowfrequency
output
- Robust powder-coated die cast
aluminum handles, designed for
strength and comfort
- Integrated 35 mm stand mount

Specifications:
Frequency Response (+/-3 dB): 65 Hz - 18 kHz80 Hz – 20 kHz
Frequency Range (-10 dB): 55 Hz - 20 kHz50 Hz – 20 kHz
Coverage Pattern: 90° x 50°
Directivity Factor (Q): 12.6
Directivity Index (DI): 11 dB
Maximum Peak Output1: 134 dB SPL 1m
Transducer Section:
Low Frequency Section: JBL 2262FF, 304 mm (12 in) dia., 76 mm (3 in) Dual Coil
neodymium Differential Drive®, Direct Cooled
Bandpass Nominal Impedance: 2 x 2 ohms
High Frequency: JBL 2452H-SL, 100 mm (4 in) titanium damped
diaphragm, 1.5 in. exit.
Bandpass Nominal Impedance: 8 ohms
System:
DPC1 Internal Amplification Output
(at nominal load) 1750 Watts Peak, 875 Watts Continuous
DPC1 Output (Continuous IEC shaped
pink noise into rated load impedance): 750LF/125HF Watts
DPC1 Output Section: LF: Dual Bridged Technology™, Class D
HF: Bridged Class D
Audio Input connector XLR with loop-through
User Controls: 80 Hz Subwoofer High Pass Filter. Enable/Disable
0-16 dB input Attenuator with 32 precision 0.5 dB steps
Signal Processing: DSP based, resident in Input Module.
System Management: DSP based limiters for mechanical and thermal
protection
AC Power Operating Range: 90-132 VAC/216-264 VAC, 50/60 Hz
AC Line Voltage: 50/60 Hz; User Selectable; 120V/240V (-15%, +10%)
AC Input Connector: Neutrik PowerCon (NAC 3MPA)
AC Loop-thru: Neutrik PowerCon (NAC 3MPB)
AC Current Requirement: 6A per system at 120V, 3A per system at 240V
Enclosure:
Box Construction: 5/8 in. multi-ply exterior grade Baltic birch. Internally
braced. Black DuraFlex™ finish.
Suspension System: 9 M10 Fittings + 2 M6 Fittings, 35 mm pole mount
socket
Grille: 14 Gauge Black powder-coated perforated steel with
foam backing.
Dimensions (H x W x D): 533 x 358 x 334 mm
21.0 x 14.1 x 13.1 in
Net Weight: 21.3 kg (47 lb)

With a 12" woofer and a 1" titanium compressor driver, the EKX-12P from Electro-Voice is a powered two-way Loudspeaker providing 1500W of Class D amplification. It\'s suitable in live-music scenarios, lecture setups, and generalized nightclub use. The loudspeaker\'s integrated QuickSmartDSP technology can be modified using the LCD-based menu-navigation screen and the single-knob user interface. Four presets of DSP are provided for various settings—Music, Live, Speech, and Club—though EQ manipulation and five user-programmable presets are all adjustable. Visual monitoring of your limiter, input metering, and master volume allow you to gain-stage properly.

Its on-board amplifier can deliver up to 132 dB of SPL, its frequency response ranges from 50 Hz to 20 kHz at -10 dB, and its intelligent thermal-management system controls fan-speed by means of multiple built-in sensors, thus reinforcing the durable performance of this speaker (whose 15mm wooden enclosure is fronted by an 18 AWG steel grille). Electro-Voice\'s SST waveguide design provides measured and dependable coverage of a given area, and the speaker\'s Cardioid Control Technology allows you to steer output towards the audience while reducing levels up to 35 dB on stage when multiple subwoofers are employed.

For convenience in mounting and transport, this loudspeaker boasts eight M10 threaded mounting points, aluminum pole mounts, and metallic handles; as such, it can be mounted on a tripod stand, on a pole above your subwoofer, or utilized as a floor monitor for artists on stage. You can feed the speaker sweet, sweet audio via RCA inputs or XLR/1/4" combination jacks, and you can link it to other monitors via an XLR link-output.

Specification     Detail
Powered     Yes
Power Configuration     Bi-amped
LF Driver Size     12“
LF Driver Power Amp     500W Class D
HF Driver Size     1.75“
HF Driver Power Amp     500W Class D
Frequency Range     50Hz-20kHz (-10dB)
Crossover Frequency     2kHz
Maximum Peak SPL     131dB
Horizontal Coverage Angle     75 Degrees Axisymmetric
Vertical Coverage Angle     75 Degrees Axisymmetric
Enclosure Material     15mm Birch Plywood
Mounting Options     Pole, Floor Wedge, Fly
Inputs     1 x Combo (XLR/TRS, Mic/Line), 1 x Combo (XLR/TRS, Line), 2 x RCA
Outputs     2 x XLR (Direct), 1 x XLR (Line)
Height     26“
Width     15“
Depth     15.4“
Weight     49 lbs.
Manufacturer Part Number     KW122