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Ground Zero ULTRA speakers are designed for the most demanding music lover and are handcrafted from the finest materials.
The speakers are selected to match each other as closely as possible, so you always get two elements manufactured at the same time and with the same specifications.
The ULTRA M-80 is a 3.15″ ultra-high-end midrange speaker with an open frame design and Kevlar cone for perfect sound quality!
A documented final technical inspection is included with the package.
- Kevlar® cone
- CCA voice coil
- Linear nitrile rubber suspension
- Includes high-quality mounting brackets
The speakers are delivered in an elegant wooden box.
Speaker grilles are included in the package.
GENERAL SPECIFICATIONS:
Speaker type 80 mm / 3.15" SQ midrange speaker
Nominal impedance 4 ohms
Frequency Response 150 Hz – 15 kHz
Basket type Multipiece machined aluminum
Cone material High-Tech Kevlar®
Motor High-grade Neodymium
Voice coil diameter 20 mm / 0.79"
Max. excursion (p2p)- Xmax 7 mm / 0.28“
Power handling (RMS) 70 Watts
Power handling (max) 110 Watts
Outer diameter 93.8 mm / 3.69"
Mounting diameter 76.5 mm / 3.01"
Mounting depth 42 mm / 1.65"
PARAMETERS:
Resonance frequency - fs 127 Hz
Efficiency - SPL 88 dB
DC voice coil resistance - Re 3.5 ohms
Driver's Q (nonelectrical losses only) - Qms 6.76
Driver's Q (at fs) - Qes 0.43
Total driver's Q - Qts 0.40
Air vol. compliant to driver's suspension - Left 0.9 L
Moving mass incl. acoustic load - Mms 3.15 g
Product of magnetic flux density - BL 4.52 N/A
Mech. resistance of driver's suspension - Rms 0.37 kg/s
Compliance of driver's suspension - Cms 0.50 mm/N
Voice coil Inductance - LE 0.04 mH
FEATURES:
Ultra-high-end 80 mm / 3.15" midrange speaker
Tightly tolerated technical parameters
High-Tech Kevlar® cone
Linear moving NBR surround
High-grade neodymium motor with copper cup
Vented voice coil former reducing distortion
Round CCAW wire voice coil increasing highest efficiency
Fine-blasted, black anodized GZ-design basket from machined aluminum parts
Optimized motor and voice coil ventilation
Airflow-optimized aluminum cast spokes
Gold-plated terminals
Documented final technical inspection
Wooden box packaging / in matching pairs
NRG protection grills with aluminum ring
Ground Zero ULTRA speakers are designed for the most demanding music lover and are handcrafted from the finest materials.
The speakers are selected to match each other as closely as possible, so you always get two elements manufactured at the same time and with the same specifications.
The ULTRA M-80 is a 3.15″ ultra-high-end midrange speaker with an open frame design and Kevlar cone for perfect sound quality!
A documented final technical inspection is included with the package.
- Kevlar® cone
- CCA voice coil
- Linear nitrile rubber suspension
- Includes high-quality mounting brackets
The speakers are delivered in an elegant wooden box.
Speaker grilles are included in the package.
GENERAL SPECIFICATIONS:
Speaker type 80 mm / 3.15" SQ midrange speaker
Nominal impedance 4 ohms
Frequency Response 150 Hz – 15 kHz
Basket type Multipiece machined aluminum
Cone material High-Tech Kevlar®
Motor High-grade Neodymium
Voice coil diameter 20 mm / 0.79"
Max. excursion (p2p)- Xmax 7 mm / 0.28“
Power handling (RMS) 70 Watts
Power handling (max) 110 Watts
Outer diameter 93.8 mm / 3.69"
Mounting diameter 76.5 mm / 3.01"
Mounting depth 42 mm / 1.65"
PARAMETERS:
Resonance frequency - fs 127 Hz
Efficiency - SPL 88 dB
DC voice coil resistance - Re 3.5 ohms
Driver's Q (nonelectrical losses only) - Qms 6.76
Driver's Q (at fs) - Qes 0.43
Total driver's Q - Qts 0.40
Air vol. compliant to driver's suspension - Left 0.9 L
Moving mass incl. acoustic load - Mms 3.15 g
Product of magnetic flux density - BL 4.52 N/A
Mech. resistance of driver's suspension - Rms 0.37 kg/s
Compliance of driver's suspension - Cms 0.50 mm/N
Voice coil Inductance - LE 0.04 mH
FEATURES:
Ultra-high-end 80 mm / 3.15" midrange speaker
Tightly tolerated technical parameters
High-Tech Kevlar® cone
Linear moving NBR surround
High-grade neodymium motor with copper cup
Vented voice coil former reducing distortion
Round CCAW wire voice coil increasing highest efficiency
Fine-blasted, black anodized GZ-design basket from machined aluminum parts
Optimized motor and voice coil ventilation
Airflow-optimized aluminum cast spokes
Gold-plated terminals
Documented final technical inspection
Wooden box packaging / in matching pairs
NRG protection grills with aluminum ring