Yong Heng Zhi Yin Q1 Mini Tone Control Preamp 220V Audiophile-Grade Class A HIFI Preamplifier with Bluetooth Support

Features:
Q1 HIFI Tone Control Preamplifier
* Audiophile-Grade Mini Preamplifier with Built-in Bluetooth
* Dual Mode Design: Tone & Original HIFI

Q1 Preamplifier Design Specs
* The Q1 is a compact pure preamplifier with dimensions: 280mm (W) x 205mm (D) x 85mm (H).
Designed for pairing with pure power amplifiers or integrated amplifiers, it supports 2-channel signal input, Bluetooth input, and 2-channel output interfaces, which can connect 2 power amplifiers at the same time.
* It features treble, mid, and bass adjustment, with one-key switching to Original HIFI Mode. 
* The Q1 provides obvious tuning effect: deep and loose bass, full and smooth mid-range, delicate and airy high frequency. The sound improvement is significant with the Q1 preamplifier.

Selected Audiophile-Grade Audio Components
* Pure Copper Toroidal Transformer
* High-Quality Gold-Plated Audio Connectors
* Lossless Bluetooth Chip
* Audiophile-Grade Audio Capacitors
* Original Imported Potentiometer for ALPS
* Original Imported OPA2604 Operational Amplifier

Lossless Bluetooth Connection & Playback
* Bluetooth Wireless, Unlimited Music
* Bluetooth 5.2 for HIFI Sound Quality

Internal Preamplifier Circuit Board Introduction
* Great Sound Comes from Design & Tuning
* The Q1 preamplifier uses an op-amp tone circuit with 3-band treble, mid, bass tone control.
* Tone mode and original HIFI mode circuits are separately designed with independent op-amps.
* Adopting the famous tube-like warm sound style, four warm OPA2604 dual op-amps are used.
* The tone control is obvious, with deep, loose and elastic bass, full and round mid-range, delicate and silky high frequency.
* All op-amps are equipped with IC sockets, supporting op-amp replacement for more DIY fun.

Dual Output Port Design
* Supports Connecting 2 Amplifiers Simultaneously

Specifications
* Model: Q1
* Input Impedance: 20KΩ
* Output Impedance: 510Ω
* Gain: 5x
* Input Sensitivity: 2Vrms
* Power Supply: AC220V
* Power Consumption: 8W
* Dimensions: 280mm(W) x 205mm(D) x 85mm(H)
* Net Weight: 2.9KG

Packing List:
* 1 × Q1 Preamplifier
* 1 × Power Cable
* 1 × RCA Cable
* 1 × User Manual

Packaging Details:
* Weight: 3.4kg