Car audio equaliser designed to tighten bass, reduce background noise and drive headsets in compact installations. Audiophiles and commuters can enjoy clearer music and reliable hands-free calls with Geieold EQ-7 Car Audio Headset Amplifier. Does seven-band control and low-noise circuitry make it a sensible upgrade for tight rigs?
⚡ At a Glance
- • Sound Signature: Precise mids, controlled bass, clear highs
- • Best for: Audiophiles and professional musicians who value detail reproduction
- • Not ideal for: Users who need integrated hands-free functionality
Seven-band equaliser provides ±12dB control across key audio bands from 60Hz to 15kHz. Dual-channel aluminium unit includes NE5532 balanced earphone amplification and runs from a DC 5V to 12V supply.
Tighter, controlled bass - with 7-band equalisation
Seven adjustable frequency bands cover 60Hz, 150Hz, 400Hz, 1kHz, 3kHz, 6.5kHz and 15kHz, with a control range of ±12dB. The equalisation circuit is built around TI or TL074 op-amp components for stable filtering.
Targeted bass trimming removes muddiness and restores punch, useful when tuning car systems or compact headphone rigs. Precise band control makes it simpler to correct room or vehicle resonance.
Low-noise headphone amplification - with NE5532 and 4580 preamp stages
NE5532 constitutes a balanced earphone amplifier in the 47 earphone driver circuit, while the 4580 classic operational amplifier supplies roughly 5X amplification (about 14dB). Input impedance is 20kΩ and output impedance is 600Ω.
Clean gain drives a wide range of headsets without adding audible hiss, ideal for small setups where background noise is noticeable. The preamp stages also help retain detail at modest listening levels.
Compact, durable fit for installs - with aluminium alloy chassis and DC5-12V power
Chassis constructed from aluminium alloy for strength and thermal stability, supporting dual-channel sound and a DC 5V to 12V power supply. Interface options include a 3.5mm input that accepts a 4-pole plug.
Small footprint and sturdy build suit tight car dashboards and portable rigs, while flexible voltage support enables use with a variety of mobile sources. Dual channels make bridging between left and right straightforward.
✨ The 4 Key Reasons for Geieold EQ-7 Car Audio Headset Amplifier
- 7-band equaliser - Tailor frequency bands across 60Hz to 15kHz precisely
- NE5532 and 4580 op-amps - Deliver fivefold preamp gain and low-noise amplification for headsets
- 3.5mm 4-pole interface - Supports headset mic and normal mobile phone voice calls
- Aluminium alloy construction - Compact, robust chassis suited to tight car installations
📋 Technical Details at a Glance
- Category: Car audio equaliser
- Channels: Dual channel sound
- Equaliser bands: 7-band equalisation
- Equalisation range: ±12dB per band
- Equaliser frequencies: 60Hz, 150Hz, 400Hz, 1kHz, 3kHz, 6.5kHz, 15kHz
❓ Frequently Asked Questions
Q: Can the unit drive standard headphones and headsets?
A: Yes. The NE5532 balanced earphone amplifier is part of the 47 earphone driver circuit and can drive various earphones with adjustable height.
Q: Does the amplifier support headset microphones and phone calls?
A: Yes. The 3.5mm input accepts a 4-pole plug and the output can connect to a headset with a microphone for normal voice calls on mobile phones.
Q: Is the unit noisy in operation?
A: User feedback notes very low-noise operation and effective noise reduction, and the supplied op-amps (4580 and NE5532) are specified for clean amplification.
🏆 Our Verdict
Best suited for listeners who want precise tonal control and cleaner headphone output in compact or in-car setups. The combination of seven-band equalisation, dedicated op-amps and a metal chassis gives practical tuning and low-noise performance. Aluminium construction and flexible power support deliver durable, long-term value for upgrades and tight installations.
