810T70

This is for a case of new speakers from old stock. We ordered them for a project and had an extra case of 16 leftover.Lowell Manufacturing Company • 100 Integram Drive • Pacific, Missouri 63069 U.S.A. Call 800.325.9660, 636.257.3400 • Fax 636.257.6606 • Click www.lowellmfg.com Lowell makes every effort to provide accurate information and reserves the right to change specifications and/or improve manufacturing methods. Download and print this spec from www.lowellmfg.com to insure that you have the most current information 2d-201 pg 1 of 4 Printed in U.S.A. © 01-31-06 810 (formerly 8C10W) 15-Watt 8" Dual Cone Driver 10oz. Magnet Quality Features Reliable 15W 8" (10oz.) speaker for a value price. Dual cone 8-inch driver provides clear and accurate reproduction of music and voice communications. Available with a factory-wired transformer for fast installation using color-coded leads. Compatible with Lowell's extensive selection of architectural grilles, backboxes, and surface baffles (see page 4). Description Lowell dual cone 8" (10oz) Model 810 is a step up in full range performance from the commercial industry standard 8" (5oz) speaker. Model 810 features a 10oz magnet for higher power handling and greater sensitivity. It also includes a 1" copper voice coil, dual cone design, and plated steel basket. It provides solid performance and good value in almost any basic paging or background music system. For versatile application, the speaker is available with a selection of factory wired transformers and will fit all standard 8" ceiling grilles and backboxes. Lowell Model 810 is often specified for reliable paging and background music performance in commercial, industrial, and institutional applications including offices, public buildings, educational and medical facilities. The dual cone loudspeaker assembly employs a highly efficient magnetic structure energized by a 10oz ceramic magnet. The use of a hard fibre whizzer cone mechanically coupled to the 1" voice coil provides extended high frequency response with fine clarity, while the molded fibre cone enhances mid and low range frequency performance. The loudspeaker frame is stamped 20 gauge steel with a zinc plated finish to prevent corrosion. The frame also includes prepunched holes for transformer mounting. See factory wired speaker/transformer assemblies on page 2. Model 810 is manufactured in the United States of America and meets or exceeds all applicable EIA standards. Lowell also manufactures a complete selection of architectural ceiling grilles, acoustic, protective, and special application backboxes and baffles to facilitate speaker installation wherever audio communications are desired. 810 (formerly 8C10W) 15-Watt 8" Dual Cone Driver 10oz. Magnet Lowell Manufacturing Company • 100 Integram Drive • Pacific, Missouri 63069 U.S.A. Call 800.325.9660, 636.257.3400 • Fax 636.257.6606 • Click www.lowellmfg.com Lowell makes every effort to provide accurate information and reserves the right to change specifications and/or improve manufacturing methods. Download and print this spec from www.lowellmfg.com to insure that you have the most current information 2d-201 pg 2 of 4 A U D I O 12”/10” Speakers & Accessories 8” Speakers & Accessories 6” Speakers & Accessories 4” Speakers & Accessories Horn Speakers & Accessories Masking Speakers & Generators Control Accessories & Electronics 7.625 in. (194mm) Mounting bolt circle 2.84in. (72mm) 8.062 in. (205mm) Specifications: Lowell Model 810 Dual Cone Driver PERFORMANCE Power Handling Sensitivity Impedance Frequency Response Dispersion Angle PHYSICAL - WOOFER Magnet Weight, Material Voice Coil Diameter, Material Cone Material Terminals 15 watts RMS (nominal) measured per EIA Standard RS-426A 100dB SPL (peak), 95dB SPL (avg) measured 2.83V @ 1m 8 ohms (nominal), 8.8 ohms @260Hz (minimum) 45Hz-18kHz (nominal), 45Hz-13kHz (+6dB) 120° @ 2000Hz octave (-6dB)10oz. (264g), strontium ferrite ceramic 1 inch (26mm), copper wire Dual cone paper with self edge surround Quick disconnect type - spade lugsMECHANICALBasket Outside Diameter Mounting Bolt Circle Cutout Diameter Mounting Depth Net Weight THIELE-SMALL PARAMETERS20 gauge stamped steel with zinc plating 8.062 inch (205mm) 7.625 inch (194mm) with 8 obround holes equally spaced at 45 degrees. 7.15 inch (182mm) 2.84 inch (72mm) 2.0 lbs. (0.91kg)Pe....................15W Qts ......................1.05 BL ..........................5.0Tm Sd ....................33.6 in2, 214cm2 Fs....................88Hz Qes ....................1.25 Efficiency, η ..........1.5% Mms ................7.6g Xmax ..............0.05 in., 1.4mm Qms ....................6.4 Vas..........................29 liters, 1770 cu.in. Cms..................0.44mm/N Re ..................7.6Ω 810 Factory-Wired Loudspeaker / Transformer Assemblies Mounted Assembly Xfmr Depth* Assembly Xfmr Xfmr Weight Power Rating Primary Voltage 810-T25 TLM25 2.84" 2.4 lb 4 Watts 25V .25, .5, 1, 2, 4W 100Hz - 10kHz +1dB 1dB 810-T70 TLM70 2.84" 2.4 lb 4 Watts 70V .25, .5, 1, 2, 4W 100Hz - 10kHz +1dB 1dB 810-T72 TLM72 2.84" 2.4 lb 4 Watts 25/70V .5, 1, 2, 4W 100Hz - 10kHz +1dB 1dB 810-T470 TLM470 2.84" 2.6 lb 4 Watts 70V .5, 1, 2, 4W 60Hz - 15kHz +1dB 0.8dB 810-T825 TLM825 2.84" 2.9 lb 8 Watts 25V 1, 2, 4, 8W 50Hz - 15kHz +1dB 0.8dB 810-T870 TLM870 2.84" 2.9 lb 8 Watts 70V 1, 2, 4, 8W 50Hz - 15kHz +1dB 0.8dB * Minimum depth required for the speaker transformer assembly to be rear mounted in an enclosure. 0.344 x 0.218 (0.9 cm x 0.6 cm) Obround holes Dual Cone Fits grilles with 7.625” - 7.688” mounting centers Lowell Manufacturing Company • 100 Integram Drive • Pacific, Missouri 63069 U.S.A. Call 800.325.9660, 636.257.3400 • Fax 636.257.6606 • Click www.lowellmfg.com Lowell makes every effort to provide accurate information and reserves the right to change specifications and/or improve manufacturing methods. Download and print this spec from www.lowellmfg.com to insure that you have the most current information 2d-201 pg 3 of 4 810 (formerly 8C10W) 15-Watt 8" Dual Cone Driver 10oz. Magnet 20Hz 50 100 200 500 1K 2K 5K 10K 20K Ohm 98 10 20 30 40 50 Impedance 20Hz 50 100 200 500 1K 2K 5K 10K 20K dBSPL 60 65 70 75 80 85 90 95 100 105 110 -150 -120 -36 -30 -24 -18 -12 -660120 -42 -36 -30 -24 -18 -12 -6-90 -60 -30 0 Deg 30 90 150 180 Freq: 1.00K, BW: 175, Q: 2.1, DI: 3.1 -150 -120 -36 -30 -24 -18 -12 -6-6030 60120 -42 -36 -30 -24 -18 -12 -6-90 -30 0 Deg 90 150 180 Freq: 8.00K, BW: 35, Q: 10.3, DI: 10.1 -150 -120 -36 -30 -24 -18 -12 -6-6030 60120 -42 -36 -30 -24 -18 -12 -6-90 -30 0 Deg 90 150 180 Freq: 4.00K, BW: 55, Q: 6.5, DI: 8.2 -150 -120 -36 -30 -24 -18 -12 -6-6030 60120 -42 -36 -30 -24 -18 -12 -6-90 -30 0 Deg 90 150 180 Freq: 2.00K, BW: 120, Q: 3.0, DI: 4.8 Lowell loudspeakers are thoroughly tested to provide specifiers and contractors with solid data that accurately reflects the performance of production drivers. Performance tests are conducted on randomly selected final production assemblies. Testing equipment includes the GoldLine TEF-20 analyzer and a LinearX LMS measurement system. The power handling capability is based on EIA Standard RS-426A. Frequency Response data is provided in two ways: Nominal - which is the generally usable response range and Limited Bandwidth - (defined by ± __dB) which is useful in predictive engineering calculations. Resonance frequency (Fs) is also provided in Thiele-Small parameters as the recommended limit from which to drive a speaker. Sensitivity (SPL) is presented two ways: Peak - used by many manufacturers (and presented here for comparison purposes) is a rating based on a narrow portion of the frequency response curve, and Average - which is a computer calculation of the octave-weighted average over the entire engineering bandwidth as shown in the frequency response (± __dB). Dispersion Angle is defined as the angle of coverage that is no more than 6dB down from the on-axis value averaged over the 2000 Hz octave band. Since speech intelligibility is very dependent upon the 2000 Hz octave, this specification is quite useful in designing paging systems that provide even coverage and intelligibility. Thiele-Small Parameters were measured with the LMS system using the delta mass method. These parameters are useful in determining the appropriate type and size of enclosure for a specific driver. In addition to the standard frequency response (on axis), impedance, and polar curves, off-axis frequency response and impulse curves are presented. Off-axis Response is another way of looking at the polar response of a speaker. It is especially useful in displaying the relative change in the sound of a speaker as one increasingly moves off-axis. Each curve is the average of response over a 15° range. Therefore, the 0° curve is the average of -5°, 0°, and +5°. The 15° curve is the average of -10°, -15°, -20°, +10°, +15°, and +20°. The final graph is an Impulse Curve which displays how well the electro-magnetic motor and the mechanical suspension work together to control the motion of the cone. Scope of Lowell Model 810 performance and power tests Polar Data 1000Hz octave 2000Hz octave 4000Hz octave 8000Hz octave Impulse SPL vs. Frequency 1W / 1M, On Axis SPL vs. Frequency 1W / 1M, Off Axis 810 (formerly 8C10W) 15-Watt 8" Dual Cone Driver 10oz. Magnet Lowell Manufacturing Company • 100 Integram Drive • Pacific, Missouri 63069 U.S.A. Call 800.325.9660, 636.257.3400 • Fax 636.257.6606 • Click www.lowellmfg.com Lowell makes every effort to provide accurate information and reserves the right to change specifications and/or improve manufacturing methods. Download and print this spec from www.lowellmfg.com to insure that you have the most current information 2d-201 pg 4 of 4 The dual cone 8 inch loudspeaker shall be Lowell Model 810 (formerly Model 8C10W). Loudspeaker shall be furnished and installed at each designated location on the architectural plans and/or as specified herein. The loudspeaker shall be of the permanent magnet type having a seamless molded fibre cone with a hard fibre whizzer cone mechanically coupled to the voice coil for extended high frequency response. The loudspeaker shall be capable of producing a uniform audible frequency response over the range of 45Hz-18kHz nominal, 45Hz-13kHz+6dB with a dispersion angle of 120 degrees @ 2000Hz-6dB. The average sensitivity shall measure 95dB (SPL at 1W/1M). Rated power handling capacity shall be 15 watts RMS. The voice coil shall have a diameter of 1 inch and shall operate in a magnetic field derived from a strontium ferrite (ceramic) magnet having a nominal weight of 10oz. The voice coil impedance shall be 8 ohms. The loudspeaker shall have a round, structurally reinforced stamped 20 gauge steel frame to maintain precise mechanical alignment and shall provide facilities for mounting a transformer. The loudspeaker shall have an overall diameter of 8.062 inches with eight obround holes equally spaced at 45 degrees on a 7.625 inch diameter mounting bolt circle. The overall depth shall not exceed 2.84 inches (not including transformer). All external metal parts shall be zinc plated to resist rust and corrosion. The loudspeaker specified herein shall be Model 810 as supplied by Lowell Manufacturing Company, Pacific, Missouri, 63069 U.S.A. For 25 or 70.7 volt distributed systems: The Model 810 dual cone loudspeaker shall be equipped with Lowell Model ______ transformer, factory mounted and wired. The transformer's primary voltage shall be _________(25V, 70.7V, 25/70V) and shall provide selectable power taps of ____________ watts. The transformer frequency response shall be from _________ to _________Hz +____dB, with a maximum insertion loss of ______dB. The loudspeaker and transformer assembly specified herein shall be referred to as the Lowell Model 810-____(T25, T70, T72, T470, T825, T870). A & E Specifications Companion Backboxes and Grilles (partial selection) To meet performance, installation, and aesthetic requirements, 810 drivers may be matched with a variety of backboxes and attractive architectural grilles. Backbox models with batting include 1-1/2" thick acoustic fiberglass. Please note, a much larger selection of backboxes and grilles is available from Lowell; refer to the current Lowell catalog or website for complete information. IC-105 JG-8X SQLK-8L Recessed Backboxes for Screw-Mount Grilles - Partial selection on right CP84 CRS 11.938Dia x 4.063D, Ext. lip for sheetrock CP87 CRS 11.938Dia x 6.687D, Ext. lip for sheetrock + batting CP810 CRS 11.938Dia x 10.063D, Ext. lip for sheetrock + batting Recessed Backboxes for Screw-Mount Grilles - Partial selection on right 8XD4 CRS 10Dia x 4D, stacks for warehousing 8PSBX Plastic 10Dia x 4D, stacks for warehousing IX810 CRS 10.063Dia x 10.063D Direct mnt 8in spkr-no load on grille+ batting Recessed Backboxes for Screw or Torsion Grilles - Partial selection on right XCP84 CRS 10.063Dia x 4.063D, flat flange for tile ceiling XCP87 CRS 10.063Dia x 6.687D, flat flange for tile ceiling + batting XCP810 CRS 10.063Dia x 10.063D, flat flange for tile ceiling + batting Recessed Backboxes for Screw-Mount Grilles - Partial selection on right P68X CRS 10Sq x 4D P68X-6 CRS 10Sq x 6D Surface Backbox for Screw-Mount Grilles CB84 CRS 12.25Sq x 4D, white finish Surface Backbox for SG-8 Grille CB84-SG CRS 12.25Sq x 4D, white finishA8-AW CS-8H LO8-P OM8-P RS8-A WB-8 WB-8H FW-8 JG-8X Screw-Mount grilles Torsion-Mount, visibly hardware free grilles below (mount XCP and IX backboxes only) CN-8M CS-8W P68X SG-8 CB84 CB84-SG CP810 CP87 / CP84 XCP810 XCP87 / XCP84 IX810 8XD4 / 8PSBX