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: Ultra-wide range from 10 Hz to 90,000 Hz. Signal-to-Noise Ratio : >90 dB.

To get a "like-new" experience out of your Blaupunkt Quadro Amplifier, proper mounting and gain staging are mandatory. Step 1: Choosing a Mounting Location

Connects to the head unit's power antenna or amplifier remote turn-on wire. 2. Audio Inputs

Known for its "New Old Stock" (NOS) availability in collector circles, often including original boxes and wiring harnesses. Installation Guidelines

The Blaupunkt BQA 120 Quadro Amplifier Go to product viewer dialog for this item.

Connects to a bare, unpainted metal chassis point on the vehicle. Keep this wire as short as possible. Speaker Output Terminals

The Blaupunkt Quadro Amplifier BQA 120 is a legendary piece of vintage car audio engineering. Released during the golden era of high-fidelity automotive sound, this four-channel ("Quadro") amplifier remains highly sought after by classic car restorers, audiophiles, and vintage electronics collectors.

Car audio forums and classic car clubs are often the most valuable resources for vintage gear. Enthusiasts who own these components often share their knowledge and can answer specific questions. Here are some active communities where you can search and ask questions:

Check the 15A fuse on the amplifier chassis and the inline fuse at the battery. Use a multimeter to verify is present at both the power and remote turn-on terminals.

: Available with standard DIN and speaker inputs, or wahlweise (optionally) with RCA/Cinch inputs. Distortion : 4 x 20 W RMS at 1% THD. The "New" Marketplace Story "Brand New Old Stock" (NOS)