--- product_id: 74016213 title: "Woo Audio 2nd gen WA7 Fireflies Headphone Amplifier/DAC in Silver" brand: "woo audio" price: "$280.25" currency: USD in_stock: false url: https://www.desertcart.us/products/74016213-woo-audio-2nd-gen-wa7-fireflies-headphone-amplifier-dac-in store_origin: US region: United States of America --- # Ultra Quiet Outputs 100% Vacuum Tube Design 24-Bit, 384kHz DAC Woo Audio 2nd gen WA7 Fireflies Headphone Amplifier/DAC in Silver **Brand:** woo audio **Price:** $280.25 **Availability:** ❌ Out of Stock ## Summary > 🎶 Unleash the Symphony Within! ## Quick Answers - **What is this?** Woo Audio 2nd gen WA7 Fireflies Headphone Amplifier/DAC in Silver by woo audio - **How much does it cost?** $280.25 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/74016213-woo-audio-2nd-gen-wa7-fireflies-headphone-amplifier-dac-in) ## Best For - woo audio enthusiasts ## Why This Product - Trusted woo audio brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Robust external linear power supply and Teflon tube sockets for enhanced durability. - • **Stunning Aesthetics:** High clarity glass top and sleek aluminum enclosure make a statement in any setup. - • **Tailored for Every Listener:** Hi/Lo impedance switch ensures compatibility with all headphone types. - • **Elevate Your Sound Experience:** Immerse yourself in high-resolution audio with our 100% vacuum tube design. - • **Versatile Connectivity Options:** Seamlessly switch between USB, RCA input, and RCA output for ultimate flexibility. ## Overview The 2nd gen WA7 Fireflies Headphone Amplifier/DAC in Silver is a high-performance audio device featuring a 100% vacuum tube design and a 24-Bit, 384kHz ESS SABRE DAC, ensuring exceptional sound quality. With ultra-quiet headphone outputs, versatile connectivity options, and a stunning aesthetic, this amplifier is perfect for audiophiles seeking both performance and style. ## Description The Woo Audio WA7 "Fireflies" (2nd Gen) Amp/DAC is a combination of high performance vacuum tube headphone amplifier with a built-in USB Digital-to-Analog Converter. It is a pure tube design, utilizing 6C45 tubes in a class-A, single-ended topology, with transformer coupled outputs. There are no semiconductors used in the entire signal path. The D/A converter is designed to be capable of up to 24-bit/384kHz sampling rates. This maintains pure data integrity, which is transmitted via standard high speed USB 2.0 interface operating in asynchronous mode. The high quality construction features include a pair of Nickel Alloy core output transformers, all-aluminum chassis with no screws visible from any viewing angles, an external linear external power supply for amplification circuitries, a custom built toroidal power transformer, and multi-layer military grade PCBs. The dedicated port for in-ear monitors carries a full range of volume controls ensuring minimal noise. Despite its incredibly compact size, "Fireflies" is a power-house outputting up to 1w of power to drive almost any demanding audiophile headphones. To accommodate different system setup needs, "Fireflies" can also be used as a stand-alone D/A Converter. ## Features - High Performance 100% Vacuum Tube Design Headphone Amplifier with DAC - 24-Bit, 384kHz ESS SABRE DAC for high resolution audio playback - Ultra quiet 1/4" and 3.5mm (for IEM) headphone outputs, Hi/Lo Impedance switch - Multi-functional switch for USB input, RCA input, and RCA output for D/A mode - Available in Black or Silver color. External Linear power supply. Teflon tube sockets, High clarity glass top for tubes protection ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00EJNQ5T4 | | Additional Features | Noise Cancellation | | Age Range Description | Adult | | Audio Driver Type | Electrostatic Driver | | Brand Name | Woo Audio | | Built-In Media | Cable | | Cable Features | Retractable | | Color | Silver | | Compatible Devices | Computers, Smartphones, Tablets, Gaming Consoles, Televisions | | Connectivity Technology | Wired | | Control Type | Volume Control | | Customer Reviews | 4.5 4.5 out of 5 stars (4) | | Earpiece Shape | rounded tips | | Enclosure Material | Aluminum | | Headphone Folding Features | In Ear | | Headphone Jack | 3.5 mm Jack, RCA | | Headphones Ear Placement | In Ear | | Item Weight | 25 pounds | | Manufacturer | Woo Audio Inc. | | Model Name | WA7/S | | Model Number | WA7/S | | Number of Items | 1 | | Series Number | 7 | | Specific Uses For Product | Music | | UPC | 039517699247 | ## Product Details - **Brand:** Woo Audio - **Color:** Silver - **Ear Placement:** In Ear - **Form Factor:** In Ear - **Headphones Jack:** 3.5 mm Jack, RCA ## Images ![Woo Audio 2nd gen WA7 Fireflies Headphone Amplifier/DAC in Silver - Image 1](https://m.media-amazon.com/images/I/61ahQKlbZPL.jpg) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/74016213-woo-audio-2nd-gen-wa7-fireflies-headphone-amplifier-dac-in](https://www.desertcart.us/products/74016213-woo-audio-2nd-gen-wa7-fireflies-headphone-amplifier-dac-in) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-22*