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Author Topic: Highest Output Powered Single 18" sub....  (Read 5485 times)

Peter Morris

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Re: Highest Output Powered Single 18" sub....
« Reply #30 on: February 12, 2018, 03:21:42 am »

Here are a few more suggestions ...

RCF 8004 – 136 dB peak http://www.rcf.it/c/document_library/get_file?p_l_id=8957959&folderId=4259617&name=DLFE-23316.pdf

Dual 15 from Fulcrum similar size to a single 18” - 143 dB peak  http://fulcrum-acoustic.com/assets/pdf/Spec%20Sheets/Prod%20Spec,%20TS215ac%20v4.pdf

dB Technologies VIO S118 – 139 dB peak http://www.dbtechnologies.com/en/products/vio/vio-s118r-p4851.aspx
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Chris Grimshaw

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Re: Highest Output Powered Single 18" sub....
« Reply #31 on: February 12, 2018, 04:21:13 am »

When it comes to subwoofer designs, Hoffman's Iron Law is forever at play: small size, deep bass, high output. Pick any two.
You can push the boundry by using increasingly expensive drivers, but that will only get you so far.

With a fixed size, weight and approximate driver/amp quality, the way to get louder is to sacrifice some low-frequency extension.

If you can DIY, you might well find you can get more bang for your buck than buying something ready-made.

Chris
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Chris Hindle

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Re: Highest Output Powered Single 18" sub....
« Reply #32 on: February 12, 2018, 08:18:18 am »

When it comes to subwoofer designs, Hoffman's Iron Law is forever at play: small size, deep bass, high output. Pick any two.
You can push the boundry by using increasingly expensive drivers, but that will only get you so far.

With a fixed size, weight and approximate driver/amp quality, the way to get louder is to sacrifice some low-frequency extension.

If you can DIY, you might well find you can get more bang for your buck than buying something ready-made.

Chris
I was going to say:
Low, Loud, Price. Pick 2.
Chris.
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Keith Broughton

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Re: Highest Output Powered Single 18" sub....
« Reply #33 on: February 12, 2018, 09:19:44 am »

Quote
my first choice would be SRX 818 sp's topped with 815's.
I recently mixed a pop band with 2x818 and 2x 815/side.
Worked fine but for this band, but, a couple more subs would have been nice.
After reading this thread, and your restrictions, the "low-loud-price-pick 2" really applies so just go with the JBL and be happy.
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Rob Gow

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Re: Highest Output Powered Single 18" sub....
« Reply #34 on: February 12, 2018, 10:18:01 am »

My pair of LS800p's have yet to let me down in over 15 years.
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Stu McDoniel

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Re: Highest Output Powered Single 18" sub....
« Reply #35 on: February 12, 2018, 11:50:41 am »

Here are a few more suggestions ...

RCF 8004 – 136 dB peak http://www.rcf.it/c/document_library/get_file?p_l_id=8957959&folderId=4259617&name=DLFE-23316.pdf

Dual 15 from Fulcrum similar size to a single 18” - 143 dB peak  http://fulcrum-acoustic.com/assets/pdf/Spec%20Sheets/Prod%20Spec,%20TS215ac%20v4.pdf

dB Technologies VIO S118 – 139 dB peak http://www.dbtechnologies.com/en/products/vio/vio-s118r-p4851.aspx
I would say +1 on the RCF 8004 AS.    A friend has an install biz and he said hey give this sub a listen when I was back in his warehouse.   WOW that sub puts out in a big way.  Powersoft amplifier on board.  Very impressive sub.
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Scott Olewiler

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Re: Highest Output Powered Single 18" sub....
« Reply #36 on: February 12, 2018, 11:54:15 am »

My pair of LS800p's have yet to let me down in over 15 years.

If you want loud, this is probably the actual loudest box in the price range you are looking at. The USC1P is also a very loud box  and better sounding IMO, but out of production. I have owned both.
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Lance Hallmark

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Re: Highest Output Powered Single 18" sub....
« Reply #37 on: February 12, 2018, 12:46:07 pm »

If you want loud, this is probably the actual loudest box in the price range you are looking at. The USC1P is also a very loud box  and better sounding IMO, but out of production. I have owned both.

The updated version of the LS800, the ES18p is a bit narrower and easier to pack a pair into an SUV or van. Comparable output, still one of the loudest subs in this size/price range. may go a bit lower than the LS series, plus wireless DSP.

For your size, weight, & price requirements you may as well go with the JBLs you have already stated you like. There's not a huge difference in the brands you've listed at this level and the JBLs are proven and solid.
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Steve Garris

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Re: Highest Output Powered Single 18" sub....
« Reply #38 on: February 12, 2018, 01:23:57 pm »

Excellent! Thank you. Great info there. I am looking for a "best of all worlds" setup. This system will be used indoor in 200 seat venues, outdoor at "vocal competitions", community events, DJ gigs, etc. I would sacrifice the very low frequency for overall output. I too am looking seriously at the SRX 818sp-SRX815 combo on polls. Nice to be able to transport it via mini-van instead of having to haul everything in the truck as well....

I have the SRX system that you are considering. I use it mostly for rock bands in 300 seat clubs, and a summer concert in the park series, where we have up to 1000 attending. The boxes sound fantastic, and are typically run with a flat EQ using the factory settings. You can drive them hard, limiting, and they still sound great. They're light enough for one person to lift (barely), and pack well in my minivan along with 5-6 monitors and other gear. The 815 tops get really loud. The sub's sound great, very musical, but they sound their best when pushed together. These boxes require a lot of output from the board, very different from my PRX system.

One negative about the 818 is hat the form factor doesn't lend itself to one-man operation very well. The handles are on the sides, and are designed for two people to lift. I remedied this by putting strong rubber feet on the side of each box. I can tip them up on their sides, and hand truck them to the van. I then grab the handles that are now facing up, and dead-lift them up to the van. This has made them much more manageable.

The tops are heavy too. I recommend a better than average speaker pole. After experimenting with a few, I went with the K&M's with the expanding mandrel.

Of the brands you listed, given that price point, I would certainly go with the JBL. The QSC subs sound good to me, but I don't like the KW tops. Can't speak to the RCF.  YMMV.
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Dave Batistig

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Re: Highest Output Powered Single 18" sub....
« Reply #39 on: February 12, 2018, 01:45:21 pm »

Now on the surface this is going to seem like another repetitive, possibly juvenile subject. However, hopefully it will not end up that way.
With the summer season looming I am in need of replacing my "smaller system". I plan to buy a pair of single 18' powered subs and a pair of single 15" plus horn tops, also powered.
I want to purchase a system with the highest output possible. Being a "JBL guy", my first choice would be SRX 818 sp's topped with 815's. I need a top boxes like these as they will also get used as standalone's on many occasions.
I am looking at JBL, EV, QSC, and RCF. Here's the thing. The SRX800sp is only "rated" at 1000 watts, yet has basically the same SPL rating as the others. Suggestions and advice here would be appreciated. I will probably go with the "tops" from whichever sub manufacturer I go with.


Here are the spec's on subs:


JBL SRX818SP Subwoofer Specifications
•System Type: Self powered 18", subwoofer system
•Maximum SPL Output: 135dB
•Frequency Range (-10dB): 35hz - 120khz
•Frequency Response (- 3dB): 29hz - 150khz
•System Power Rating: 1000W Peak , 750W Continuous
•Input Impedance: 40k balanced, 20k unbalanced
•Line Input Gain: 21 dB
•Consumer Input Gain: 33 dB
•Max Input Level: Line: 20dBu, Consumer: 8dBu
•Connectors: Neutrik 1/4 - XLR input; Neutrik XLR Output
•LED Indicators: Power LED (Green), Network Link (Green), Network Data (Yellow)
•Cooling: On-Demand variable speed fan
•AC Power Input: 100V - 240V 50/60Hz
•AC Power Consumption (120V): 2.2A (1/8th Power), 5.6A (1/3rd Power)
•LF Driver: 2279F
•Crossover Frequency: 80hz
•Enclosure Material: 18mm plywood
•Suspension/Mounting: M20 Threaded Pole Mount
•Handles: 4
•Finish: Obsidian Duraflex finish
•Grille: Powder coated, Obsidian, 14-gauge perforated steel with acoustically transparent black cloth backing
•Dimensions (L x W x H): 26.89 x 26.92 x 22.62" (683 x 684 x 575mm)
•Weight: 87.0 lbs (39.5kg)
•Shipping Weight: 103 lbs (46.8kg)
•Accessories: Power Cable, Quickstart Guide

QSC KW181 Loudspeaker Powered PA Subwoofer Specifications
•Configuration: 18 inches subwoofer
•Transducer:18 inches cone transducer
•Frequency Response (-6 dB): 43 Hz - 97 kHz
•Frequency Range (-10 dB): 39 Hz - 145 Hz
•Maximum SPL (1 meter): 132 dB peak
•Power Output: 1000 W Class D continuous
•Input Impedance (ohms): XLR / ¼": 38k balanced / 19k unbalanced
•Controls:  ◦Power
◦Gain
◦LF Mode (Normal/DEEP)
◦Polarity (Normal/Reverse)
◦Front LED (On/Off/Limit)

•Indicators: Power, Signal, Standby, Limit
•Connectors: Dual balanced female XLR/¼" line level input, Dual Balanced male XLR full range line level out, Remote gain control, Locking IEC power connector
•Cooling: On demand, 50 mm variable speed fan
•Amplifier Protection: Thermal limiting, output overcurrent, overtemperature muting, GuardRail
•Transducer Protection: Thermal limiting, excursion limiting
•AC Power Input: Universal power supply 100 - 240 VAC, 50 - 60 Hz
•AC Power Consumption (1/8 Power): ◦100 VAC, 2.3 A
◦120 VAC, 2.01 A
◦230 VAC, 1.13 A

•Material: 15 mm painted birch plywood
•Finish: Black textured paint
•Grille: Black powder coated 16 gauge steel
•Dimensions (HxWxD): 20.1 x 23.4 x 29.9 inches with casters (510 mm x 595 mm x 761 mm with casters)
•Weight (Net): 83 pounds (37.6 kg)

Electro Voice ETX-18P Powered PA Speaker Specifications
 •Frequency Response: 33 Hz – 150 Hz
•Frequency Range: 28 Hz – 180 Hz
•Maximum SPL: 135 dB peak
•Power Rating: 1800 W
•LF Transducer: DVX3180A 18 inch
•Low Pass Frequency: Adjustable: 80Hz, 100Hz, 120Hz, 150Hz
•Connectors: (2) XLR/TRS combo jack and (2) XLR link output
•Enclosure: 18-mm, 13-ply birch plywood with EVCoat
•Grille: 16AWG steel with powdercoat
•Dimensions (HxWxD): 22 x 27 x 36 inches (550x675x910mm)
•Weight: 114.2 lb (51.8 kg)

RCF SUB 8003AS 18" 2200 Watt Powered Subwoofer Specifications
 •ACOUSTICAL SPECIFICATIONS:
◦Frequency Response -3 dB: 35 Hz ÷ 120 Hz
◦Max SPL: 133 dB
◦Woofer: 18 inch, 4 inch voice coil

•INPUT/OUTPUT SECTION
◦Input connectors: Stereo XLR
◦Output connectors: Stereo XLR
◦Input sensitivity: -2 dBu / + 4 dBu

•PROCESSOR SECTION:
◦Crossover frequencies: Selectable Hz
◦Protections: thermal, rms
◦Limiter: dynamic limiter
◦Controls: Gain,EQ, phase, xover, delay, cardioid

•AMPLIFIER SPECIFICATIONS:
◦Total power: 2200 W PEAK
◦Low frequencies: 2000 W PEAK
◦Total power: 1100 W RMS
◦Low frequencies: 1100 W RMS
◦Cooling: Convection
◦Connections: Powercon in-out

•CABINET:
◦Cabinet Material: Baltic birch plywood
◦Handles: 2 side
◦Pole Mount/Cap: Yes
◦Grille: Steel
◦Color: Black

•Dimensions (HxWxD): 27.32 x 20.59 x 27.56 inches
•Weight: 95.90 lbs


JBL VRX918SP 18 Inch High Powered Subwoofer Specifications
•Power Rating   1500 Watts Peak LF: Dual-Bridged Technology™, Class D
•Frequency Range   31 Hz – 220 Hz
•Dimensions (H x W x D)   508 mm x 597 mm x 749 mm (20.0 in x 23.5 in x 29.5 in)
•Frequency Response   34 Hz – 220 Hz
•Maximum Peak Output   126 dB SPL at 1m
•Bandpass Nominal Impedance LF: 2 x 2 ohms
•LF Driver   1 x JBL 2268FF 457 mm (18 in) dual voice coil, Differential Drive® woofer with neodymium-magnet
•Audio Input Connector   XLR with loop through
•User Controls:
Input Attenuator (0-16 dB) ◦Selectable 80 Hz or 120 Hz Low Pass
◦80 Hz High-Pass enable/disable for XLR loop thru.
•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 or 216-264 VAC, 50/60Hz
•AC Line Voltage   User selectable: 120V/240V (-15%, +10%)
•AC Input Connector   Neutrik PowerCon (NAC 3MPA)
•AC Loop Through Connector   Neutrik PowerCon (NAC 3MPB)
•AC Current Requirements   6A per system at 120V, 3A per system at 240V
•Enclosure   18 mm birch plywood.
•Suspension / Mounting   Optional VRX-AF line-array frame kit or 10 mm forged eyebolts
•Finish   Black DuraFlex™ finish
•Grille   Powder coated, black, 16-gauge perforated steel with acoustically transparent foam
•Net Weight   38.5 kg (85 lb)

Did you look at the RCF SUB8004? Higher output than the 8003, still single 18"

http://www.rcf.it/en_US/professional-speaker-systems/sub-series/sub-8004-as
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Re: Highest Output Powered Single 18" sub....
« Reply #39 on: February 12, 2018, 01:45:21 pm »


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