Guitar / Bass

Redcoat Series

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RAMROD™

The Eminence Ramrod guitar speaker takes your best licks and drives them home. Very loud and gutsy, with meaty tone. The highs really sing with nice, clear overtones.

response graph
Find a Dealer This table charts the specifications for the RAMROD™ speaker
Speaker Detail
Specification
Nominal Basket Diameter10", 254mm
Nominal Impedance*8 ohms
Power Rating**
Watts75W
Music ProgramN/A
Resonance101Hz
Usable Frequency Range80Hz - 4kHz
Sensitivity***100.1dB
Magnet Weight30 oz.
Gap Height0.31", 7.92mm
Voice Coil Diameter1.5", 38.1mm
Thiele & Small Parameters
Resonant Frequency (fs)101Hz
DC Resistance (Re)7.3
Coil Inductance (Le)0.39mH
Mechanical Q (Qms)10.8
Electromagnetic Q (Qes)0.68
Total Q (Qts)0.64
Compliance Equivalent Volume (Vas)24.6 liters / 0.87 cu.ft.
Peak Diaphragm Displacement Volume (Vd)17.6cc
Mechanical Compliance of Suspension (Cms)0.12mm/N
BL Product (BL)11.5 T-M
Diaphragm Mass Inc. Airload (MMs)19.1 grams
Efficiency Bandwidth Product (EBP)149
Maximum Linear Excursion (Xmax)0.48mm
Surface Area of Cone (Sd)366.1 cm2
Maximum Mechanical Limit (Xlim)N/A
Mounting Information
Recommended Enclosure Volume
SealedAcceptable
VentedAcceptable
Driver Volume Displaced66.9 cu.in. / 1.1 liters
Overall Diameter10.11", 256.8mm
Baffle Hole Diameter9.13", 231.8mm
Front Sealing GasketFitted as standard
Rear Sealing GasketFitted as standard
Mounting Holes Diameter0.23", 5.7mm
Mounting Holes B.C.D.9.6", 243.8mm
Depth4.3", 109mm
Net Weight5.4 lbs, 2.5 kg
Shipping Weight8.3 lbs, 3.8 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerPolyimide former
Magnet CompositionFerrite magnet
Core DetailsNon-vented core
  
Basket MaterialsPressed steel basket
Cone CompositionPaper cone
Cone Edge CompositionPaper cone edge
Dust Cap CompositionZurette dust cap
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Footnotes

* Please consult www.eminence.com for specifications of models with alternative impedances.

** Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, nontemperature-controlled environment.

*** The average output across the usable frequency range when applying 1W/1m into the nominal impedance. ie: 2.83 V /8 ohms, 4 V /16 ohms. Eminence response curves are measured under the following conditions: All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance | LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle | 2 ft. x 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction | Hafler P1500 Trans-Nova amplifier | 2700 cu. ft. chamber with fiberglass on all six surfaces (three with custom-made wedges).

**** BETA 8CX, 10CX, 12CX and ACOUSTINATOR™ CX 2008 are coaxial speakers with tweeter sold separately. Published Usable Frequency response contingent upon use of APT 50 HF Driver.

***** Multiple units exceeded published rating evaluated under AES 500 and AES 800 noise sources and test standards while mounted on Eminence's TI-2000 horn in a nontemperature-controlled environment.

****** The average on axis output across the entire usable frequency range when applying 1W/1m into the nominal impedance while mounted on a Community SH 494 horn measured with: LMS (software calibrated) using a 0.25" [6.4mm] supplied microphone mounted 1m from horn mouth, Hafler P1500 Trans-Nova amplifier, 2700 cu.ft. chamber w/fiberglass on all six surfaces (three with custom made wedges). Plane-wave tube response and impedance curves measured with LMS on a 0.75" [19.1mm] diameter tube with adapter to allow for smooth transition to throat diameter and 1W/1m into nominal impedance. Prices and Specifications Subject to Change Without Notice.