GZPA Reference 4PURE-SQ Amplifier

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How to understand the displayed delivery times?

For greater transparency, we display the availability of each product in a box at the top of its product page:

• 🟢 In stock: product available in our warehouse, ready to be shipped.
• 🟠 Pre-order – X business days: average time to receive the product in our warehouse before it is shipped to you.

Delivery times are estimates and may vary depending on suppliers and shipping.

We do our best to provide you with clear and reliable information so that you can order with full knowledge of the situation.

Upon receipt of the product, your order is automatically prepared and shipped. You will receive tracking information by email.

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📦 Preparation and shipping

In-stock products ordered before 12 p.m. are generally shipped the same day. After 12 p.m., shipping generally takes place on the next business day.

Pickups are available Monday through Friday, excluding holidays.

🚚 Our delivery methods

• Chronopost Économique pickup point: free delivery with purchases of €49 or more (4 to 10 business days).
• Chronopost 24h pickup point: fast delivery to a pickup point.
• 24h home delivery: our only home delivery option. Please note that this delivery method is not considered a guaranteed express delivery.

Delivery times begin once the carrier has accepted the package and are provided as estimates in business days.

Important: check that your product is listed as "In stock" on its product page. For pre-orders, shipping takes place only after the product has been received at our warehouse.

Some heavy or bulky packages may incur additional shipping and handling fees, which are automatically displayed in your cart.

⚠️ Receiving your package

Check the condition of your package before accepting it. In the event of damage, make specific reservations with the carrier or refuse the package if necessary.

If you experience any problems, please contact our customer service team promptly.

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📞 Phone: 09 85 13 66 35

💬 Live chat: directly on our website.

🕒 Our hours:

• Tuesday to Saturday
• Mornings: 9:30 am – 12:00 pm
• Afternoons: 1:30 pm – 6:00 pm

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The Sound Auto Concept Team

- High-End pure sound quality amplifier
- 1 Ohm stable stereo / 2 Ohm bridged
- Symmetrical dual-mono direct-signal layout
- Shielded and separated dual power supply
- Continuously variable Bias Setting Class AB -> nearly Class A
- Adjustable input sensitivity
- Soft delayed remote turn-on
- Power & Protection indicator
- Thermal, over current, speaker short, Speaker DC protection
- Temperature-sensitive controlled fan
- Plexiglas bottom plate
- White LED illumination inside
- High quality Rhodium RCA plugs
- Selected high-end SANKEN® transistors
- Low distortion LM4562 OP with 0.00003% THD+N
- Ground Zero exclusive Mundorf Mcap® capacitors
- Special made audio-optimized Mundorf secondary capacitors for maximum buffering
- Capsuled ALPS potentiometers with channel separated level adjustment and summarize-function
- Low-tolerance Vishay Dale emitter-resistors for accurate bias point stabilization
- Copper anodized aluminum strand cast heatsink

*The WRMS output power is based on the CEA Standard CEA-2006-A (14.4V, 1% THD)

Model

GZPA Reference 4PURE

Kind

4 Ch Class AB > A

Output Power @ 4 Ohm (CEA*)

4 x 150 W

Output Power @ 2 Ohm (CEA*)

4 x 270 W

Output Power @ 1 Ohm (CEA*)

4 x 425 W

Bridge mode @ 4 Ohm (CEA* / 10% THD)

2 x 650 W

Bridge mode @ 2 Ohm (CEA* / 10% THD)

2 x 1000 W

Output power linkmode 2 Ohm

-

24 Volt Unit

-

18 Volt stable

-

Lowpass

-

Highpass

-

Bandpass

-

Subsonic

-

Bassboost

-

Phaseshift

-

Adjustable Q-factor

-

Variable Bias Setting

Yes / Yes

Bass remote

-

High Level in

-

Line Out

-

Illumination

White LED lighting / white LED illumination

Dimensions cm / Inch

59 x 6.75 x 23.6 cm / 23.23“ x 2.66“ x 9.29“