Topping E4x4 Pre - USB Audio Interface｜4-Channel Ultra-linear Preamps & Dual Headphone Monitoring
The Topping E4x4 Pre is a 4-channel USB audio interface designed for small bands, multi-host podcasts, and advanced creators. It expands flagship-level audio quality to a 4-track specification, featuring 4 Ultra-linear Microphone Preamps with an extremely low noise floor of -130.5dBu. This ensures that every track in multi-person interviews or synchronized instrument recordings captures studio-grade, pristine, and uncolored sound.
To meet multi-user monitoring needs, the E4x4 Pre is equipped with 2 independent headphone outputs powered by audiophile-grade NFCA-LE Headphone Amplifier modules. Delivering up to 580mW of power, it effortlessly drives various high-impedance headphones. Additionally, the rear panel provides 4 Balanced Line Outputs, allowing flexible connections to multiple monitor speakers or external hardware effects. Paired with the dedicated control software, it manages complex signal routing with ease.
Core Features & Applications
4-Channel Ultra-linear Preamps
Features 4 Combo input connectors supporting both microphone and line signals, with the first two channels supporting High-Impedance (Hi-Z) instrument inputs. With ultra-low distortion and high dynamic range, it perfectly handles multi-microphone recording scenarios.
Dual NFCA-LE Headphone Monitoring
Front-mounted dual 6.35mm headphone outputs feature the same NFCA-LE circuitry found in flagship models, providing a powerful 580mW (32Ω) drive. Zero-latency simultaneous monitoring for two users significantly boosts collaboration efficiency for recording and streaming.
Flexible 4 In / 4 Out Routing
Equipped with 4 input and 4 output channels. Combined with the TOPPING Professional Control Center software, you can freely configure 8 DAW channels and 6 Loopback channels, easily achieving internal recording mixes and multi-channel monitor switching.
Tech Specs
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Mic Inputs:
EIN: -130.5dBu @ 150Ω
THD+N: -110dB (0.0003%)
Dynamic Range: 115dB
Max Input Level: 8.6dBu
Input Impedance: 1.5kΩ -
Instrument Inputs:
Input Impedance: 1MΩ
THD+N: -108dB (0.0004%)
Dynamic Range: 115dB -
Line Inputs:
THD+N: -107dB (0.00045%)
Max Input Level: 23.9dBu
Input Impedance: 9kΩ -
Headphone Outputs:
Output Power: 580mW x 2 @32Ω | 380mW x 2 @64Ω
High Impedance Power: 198mW x 2 @150Ω | 105mW x 2 @300Ω | 55mW x 2 @600Ω
THD+N: -100dB (0.001%)
Noise: 1 uVrms
Output Impedance: 1Ω -
Line Outputs:
Dynamic Range: 115dB (Analog Dynamic Range 127dB)
Max Output Level: 14dBu
THD+N: -100dB (0.001%)
Output Impedance: 100Ω -
Physical Specs:
Dimensions: 29.2cm x 12.9cm x 5.0cm
Weight: 830g
Power Input: USB Type-C (DC5V/1.0A)
THINK2 Warranty & Support
- Fast Shipping: In-stock items will be shipped within 24 business hours.
- Professional Technical Support: Our certified audio engineers provide consultation for installation, licensing, compatibility, and basic setup.
- Comprehensive Warranty & After-Sales Service: Includes both manufacturer warranty and THINK2 customer support.
※ Shipping times are calculated based on business days. Delays may occur during holidays or force majeure events. Actual warranty terms follow the manufacturer’s official policy, while THINK2 provides integration and support assistance.
THINK2 Warranty & Return Policy
- With valid proof of purchase and product serial number, customers are entitled to the manufacturer’s warranty and THINK2 after-sales service.
- DOA / Non-human defects: Within 7 days from the purchase date, after verification, customers may request a return or replacement.
- Exclusions: Damages caused by misuse, unauthorized disassembly or modification, consumable parts, natural disasters/force majeure, or improper use beyond specifications and instructions.
- Application Process: Contact customer service during business hours and follow the provided packaging and return instructions.
- Service Coverage: Taiwan region as primary service area; lead time and costs for offshore/overseas service depend on actual logistics standards.
