Orchestra 7-612/C8/32 RP
Orchestra 7-612/C8/32 RP
Orchestra 7-612/C8/32 RP
Orchestra 7-612/C8/32 RP

Features

89 dB SPL
89 dB SPL

efficiency

50 Hz - 3 kHz
50 Hz - 3 kHz

recommended frequency range

7" | ±180mm
7" | ±180mm

dimensions

Paper
Paper

Membrane material

±4.5 mm
±4.5 mm

linear motion

Features

89 dB SPL
89 dB SPL

efficiency

50 Hz - 3 kHz
50 Hz - 3 kHz

recommended frequency range

7" | ±180mm
7" | ±180mm

dimensions

Paper
Paper

Membrane material

±4.5 mm
±4.5 mm

linear motion

Vendor:ETON Soundsysteme GmbH

Orchestra 7-612/C8/32 RP

Der ETON Orchestra 7-612 ist ein 7"-Tiefmittelton-Treiber für audiophile DIY-Projekte, bei denen ein warmer Klangcharakter, hohe Pegelfestigkeit und maximale Systemflexibilität gefragt sind. Mit einer Resonanzfrequenz von 37 Hz (TSP), einem Qts von 0,30 und einem elektrischen Xmax von ±4,5 mm – dem höchsten Linearhub im Orchestra-Tiefmittelton-Sortiment – liefert der Orchestra 7-612 verzerrungsarme, pegelfeste Basswiedergabe auch bei hohen Lautstärken. Das Äquivalentvolumen von 28 dm³ ermöglicht Bassreflexgehäuse ab ca. 20–40 Litern – kompakt genug für Standlautsprecher und großzügige Regalboxen.

Die verrippte Papier-Membran (RP) mit einer effektiven Abstrahlfläche von 137 cm² kombiniert ein warmes, organisches Klangbild mit konstruktiver Steifigkeit: Die Rippenstruktur kontrolliert Partialschwingungen und stabilisiert das Ausschwingverhalten auch bei hohen Auslenkungen. Die 32-mm-Kupfer-Schwingspule auf Kapton-Träger sorgt für einen kraftvollen Antrieb (BL = 8,6 Tm) bei 80 W Belastbarkeit (IEC 60268-5) und 89 dB Wirkungsgrad. Made in Germany, aus der ETON-Manufaktur.

Warum der ETON Orchestra 7-612 für Ihr DIY-Projekt?

  • Xmax ±4,5 mm elektrisch / ±8,8 mm mechanisch – hoher Linearhub für verzerrungsarme, pegelfeste Basswiedergabe auch bei hohen Lautstärken
  • BL = 8,6 Tm / fs 37 Hz (TSP) / Vas 28 dm³: kraftvoller Antrieb mit echtem Tiefgang, Bassreflexgehäuse ab ca. 20–40 Litern
  • Verrippte Papier-Membran (RP), Sd = 137 cm²: warmes, organisches Klangbild mit weichen, gut konturierten Mitten und schneller Basswiedergabe
  • 89 dB / 80 W (IEC 60268-5): hoher Wirkungsgrad und solide Belastbarkeit für dynamische 2- und 3-Wege-Systeme
  • Qts 0,30: primär für Bassreflex ausgelegt – präzise, berechenbare Gehäuseauslegung
  • 181 mm Ø, 87 mm Tiefe, 1,96 kg: robustes 7"-Format für anspruchsvolle Tiefmittelton-Projekte

Für Projekte, bei denen ein warmer Klangcharakter, hohe Pegelfestigkeit und ein präziser Tiefgang gefragt sind – der ETON Orchestra 7-612. Made in Germany, aus der ETON-Manufaktur.

Xmax ±4.5 mm electrical / ±8.8 mm mechanical: high linear travel for low-distortion, stable-level bass reproduction even at high volumes and low frequencies.

Xmax ±4.5 mm electrical / ±8.8 mm mechanical: high linear travel for low-distortion, stable-level bass reproduction even at high volumes and low frequencies.

BL = 8.6 Tm / fs 37 Hz (TSP) / Qts 0.30: Powerful motor with genuine low-frequency extension – for bass reflex enclosures of approximately 20–40 liters, precise and predictable.

BL = 8.6 Tm / fs 37 Hz (TSP) / Qts 0.30: Powerful motor with genuine low-frequency extension – for bass reflex enclosures of approximately 20–40 liters, precise and predictable.

Ribbed paper diaphragm (RP), Sd = 137 cm² / Mmd = 17.3 g: warm, organic sound signature with soft midrange and agile, transient-accurate bass reproduction.

Ribbed paper diaphragm (RP), Sd = 137 cm² / Mmd = 17.3 g: warm, organic sound signature with soft midrange and agile, transient-accurate bass reproduction.

89 dB / 80 W (IEC 60268-5) / 181 mm Ø / 1,96 kg: high efficiency, robust load capacity – for dynamic 2-way and 3-way systems. Made in Germany.

89 dB / 80 W (IEC 60268-5) / 181 mm Ø / 1,96 kg: high efficiency, robust load capacity – for dynamic 2-way and 3-way systems. Made in Germany.

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115,00 EURUnit price(115,00 EUR each)

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2-year manufacturer's warranty

Made in Germany

89 dB / Xmax ±4,5 mm – usable from 32 Hz to 2 kHz, level-stable for 2-way and 3-way

The frequency response of the Orchestra 7-612 demonstrates the performance of a 7-inch mid-bass driver with high linear travel and a warm sound character: a smooth, controlled amplitude curve from approximately 32 Hz to 2 kHz – with an efficiency rating of 89 dB and a stable level structure across the entire operating range. The electrical Xmax of ±4.5 mm is reflected in the frequency response: Even at high sound pressure levels and low frequencies, the amplitude curve remains linear and low-distortion – the driver operates far below its mechanical limits. The ribbed paper cone (RP) with an effective radiation area of 137 cm² controls parasitic vibrations in the upper operating range and stabilizes excursion behavior.

Particularly relevant for DIY enthusiasts: The usable operating range up to approximately 2 kHz makes the Orchestra 7-612 the ideal driver for 2-Wege-Systeme with a crossover frequency around 1.5–2 kHz – paired directly with a tweeter, using bass reflex enclosures from approximately 20–40 liters.

In the 3-Wege-System it operates as a mid-bass driver between a woofer (crossover starting at approximately 100–200 Hz) and a tweeter (crossover at 1.5–2 kHz). The onset of 7-inch beamforming above approximately 2 kHz should be taken into account when selecting the crossover frequency. The Qts of 0.30 makes the driver a dedicated bass reflex specialist – enclosure design is precise and predictable.

The smooth frequency response without dips or peaks in the operating range confirms the quality of the paper RP cone and the powerful drive system (BL = 8.6 Tm, 1.00 T). A 7-inch driver that sounds exactly as it measures – warm, level-stable, precise. Made in Germany, from the ETON factory.

Qts 0.30 / fs 37 Hz / Xmax ±4.5 mm – level-stable low-midrange driver for bass reflex enclosures

The impedance curve of the Orchestra 7-612 shows the performance of a 7" mid-bass driver with high linear travel and powerful motor: The impedance maximum is at approximately 37 Hz (TSP). The Qts value of 0.30 clearly positions this driver for bass reflex designs – in a sealed enclosure, bass extension would be limited by the low Qts. The equivalent volume of 28 dm³ enables bass reflex enclosures from approximately 20–40 Liters with tuning around 30–40 Hz. The electrical Xmax of ±4.5 mm is the highest of all Orchestra mid-bass drivers and confirms the 7-612's design for high-level, low-distortion bass reproduction: The force factor BL = 8.6 Tm remains constant across the entire linear travel range.

Above resonance, the driver exhibits stable electrical behavior: The impedance rises moderately toward higher frequencies due to the voice coil inductance (Le = 0.81 mH) – a value expected for a 7" driver with a 32-mm copper voice coil on a Kapton former. The single-layer voice coil winding results in a low moving mass (Mmd = 17.3 g, which enables agile, transient-accurate bass reproduction. The 8-ohm design allows trouble-free operation with standard HiFi amplifiers.

The cleanly defined impedance maximum without parasitic resonances confirms the mechanical precision of the overhung motor system and the quality of the suspension. This 7" driver behaves identically in enclosure calculations as it does in simulation – reproducible, reliable, Made in Germany.

Product Specification

Dimensions and installation
Total Diameter

181 mm

Cutout Diameter

151.5 mm

Total Depth

87 mm

Rim Thickness

7.5 mm

Weight

1,96 kg

Screw Hole Diameter (Screw / Head)

5,2 mm / 9 mm

Terminal (Negative / Positive)

2,8 mm / 4,8 mm

Voice coil
Diameter

32 mm

Height

17 mm

Wire material

Cu

Substrate material

Kapton

Winding layers

1

Magnetic drive
Magnetic flux density

1.00 T

Air gap height

8 mm

Material

Ferrite

Dimensions

102 mm x 46 mm

Drive system

Overhang

Ferrofluid

nein

Technical data
Nominal Impedance

Zn = 8 Ohm

DC Resistance

Re = 6.5 Ohm

1 W Resonance Frequency

fr = 34 Hz

TSP Resonance Frequency

fr = 37 Hz

Suspension Compliance

Cms = 1.07 mm/N

Mechanical Quality Factor

Qms = 5.95

Electrical Quality Factor

Qes = 0.32

Total Quality Factor

Qts = 0.30

Mechanical Resistance

Rms = 0.73 kg/s

Total Moving Mass (including Moving Air Mass)

Mmd = 17.3 g

Effective Radiating Area

Sd = 137 cm²

Voice Coil Inductance

Le = 0.81 mH

Force Factor

BLxl = 8.6 Tm

Electrical Xmax

+/- 4.5 mm

Mechanical Xmax

+/- 8.8 mm

Equivalent Volume

Vas = 28 dm³

Average Sound Pressure Level 1 W / 1 m

89 dB SPL

Power Handling

80 W*


*IEC 60268-5

Downloads

Technical Data Sheet Orchestra 7612

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