SinLoon HA400 4-Channel Stereo Headphone Amplifier, Metal Mini Audio Splitter with Independent Volume Control, 1/4" TRS Output & Input, with 12V Adapter for Studio, Stage, PC, Guitar
$47.19
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- True 4-Channel Independent Amplification: Features four discrete amplifier circuits with JRC4580 op-amps, delivering uncompromised stereo audio to each output. Unlike passive splitters that degrade signal quality, each channel maintains independent volume control, allowing four users to listen simultaneously without noise or crosstalk interference.
- Extended Compatibility with 32-100Ω Headphones Engineered to power a wide range of headphones, from consumer-grade (32Ω) to professional studio models (100Ω). Provides robust amplification with detailed sound reproduction and ample volume headroom for critical listening, mixing, and monitoring applications.
- Professional-Grade Audio Connections Equipped with standard 1/4" TRS stereo input (100kΩ impedance) for audio interfaces, mixers, and instruments. Four 1/4" TRS outputs (80Ω impedance) ensure optimal signal transfer. Upgraded circuitry delivers high signal-to-noise ratio and low distortion for pristine audio fidelity.
- Compact Metal Chassis for Versatile Use Housed in a durable yet compact metal enclosure (104x57x47mm, 0.37kg) that withstands rigorous studio use while remaining portable. The sturdy construction and included 12V 500mA power adapter make it ideal for both fixed installations and mobile recording setups.
- Multi-Application Audio Solution Serves as the perfect hub for podcasting, voice-over sessions, music production, and band practice. Enables synchronized recording with click tracks, collaborative mix monitoring, and immersive multiplayer gaming experiences without quality loss. Supports up to four headphone pairs simultaneously with stable power delivery.
- Free 30-Day Returns
- Full Refund for Damaged or Incorrect Items
- Guaranteed Delivery or Money Back
- Secure Checkout & Fast Support
- True 4-Channel Independent Amplification: Features four discrete amplifier circuits with JRC4580 op-amps, delivering uncompromised stereo audio to each output. Unlike passive splitters that degrade signal quality, each channel maintains independent volume control, allowing four users to listen simultaneously without noise or crosstalk interference.
- Extended Compatibility with 32-100Ω Headphones Engineered to power a wide range of headphones, from consumer-grade (32Ω) to professional studio models (100Ω). Provides robust amplification with detailed sound reproduction and ample volume headroom for critical listening, mixing, and monitoring applications.
- Professional-Grade Audio Connections Equipped with standard 1/4" TRS stereo input (100kΩ impedance) for audio interfaces, mixers, and instruments. Four 1/4" TRS outputs (80Ω impedance) ensure optimal signal transfer. Upgraded circuitry delivers high signal-to-noise ratio and low distortion for pristine audio fidelity.
- Compact Metal Chassis for Versatile Use Housed in a durable yet compact metal enclosure (104x57x47mm, 0.37kg) that withstands rigorous studio use while remaining portable. The sturdy construction and included 12V 500mA power adapter make it ideal for both fixed installations and mobile recording setups.
- Multi-Application Audio Solution Serves as the perfect hub for podcasting, voice-over sessions, music production, and band practice. Enables synchronized recording with click tracks, collaborative mix monitoring, and immersive multiplayer gaming experiences without quality loss. Supports up to four headphone pairs simultaneously with stable power delivery.
Elevate your studio's monitoring capabilities or power your next band practice with the HA400 Professional Headphone Amplifier. Designed for audio engineers, musicians, and content creators who require pristine audio distribution to multiple listeners, the HA400 delivers unparalleled performance and reliability in a compact, rugged package.
Key Features & Technical Advantages:
1.Discrete 4-Channel Amplification: Each of the four outputs is driven by its own independent amplifier circuit based on the renowned JRC4580 operational amplifier. This architecture guarantees that the volume adjustment on one channel does not affect the others, eliminating crosstalk and ensuring every user receives a powerful, clean stereo signal.
2.Superior Sound Quality: The JRC4580 chip is selected for its low noise, high gain, and excellent transient response. Coupled with high-quality audio capacitors, the HA400 reproduates your audio with clarity and precision, ensuring you hear every detail.
3.Professional Connectivity & Specs:
Input: 1/4" TRS Stereo Input (100kΩ Impedance) - Ideal for connecting to line-level outputs from professional gear.
Outputs: 4 x 1/4" TRS Stereo Outputs (80Ω Impedance) - Provides optimal matching for a wide range of headphones.
Recommended Headphone Impedance: 32Ω - 100Ω.
Power Supply: 12V DC 500mA (Adapter Included) - Ensures stable operation and sufficient headroom for all four channels.
Built for Demanding Environments: The all-metal chassis not only protects the internal components from physical damage but also effectively dissipates heat, ensuring long-term reliability. Its compact size (104mm x 57mm x 47mm) and light weight (0.37kg) make it an essential tool for any mobile recording bag.
Applications:
Music Studio: Multi-artist recording, overdubbing, and mixing.
Podcast & Broadcast: Co-host and engineer monitoring.
Education: Audio training and classroom listening.
Live Sound: Stage monitoring for bands and drummers.
Gaming: Multi-player immersive audio experience.
Package Includes:
HA400 4-Channel Headphone Amplifier 12V DC 500mA Power Adapter User Manual
Technical Specifications: Input Impedance: 100 kΩ
Output Impedance: 80 Ω
Max Output Power: >40mW (per channel @ 100Ω)
THD+N: <0.05%
Frequency Response: 20Hz - 20kHz (±1dB) Power Supply: 12V DC, 500mA (center positive)
Dimensions: 104 x 57 x 47 mm (LxWxH)
Processing Time
- We process and ship orders Monday through Friday, excluding holidays.
- Most orders are processed within 1–3 business days, depending on product availability.
- Processing time does not include delivery time, which varies based on your location and the product’s shipping origin.
Shipping Coverage
We currently ship to addresses within the United States only.
Products may ship from:
- Our U.S. warehouses, or
- Our international fulfillment centers (including Korea, Japan, China, Australia, Mexico, Canada, the United Kingdom, and the EU).
Each product page clearly displays the “Ships From” location before checkout.
Shipping Methods & Estimated Delivery
| Shipping Method | Estimated Delivery | Cost |
|---|---|---|
| Free Shipping (US) | 5–10 business days | Free, available on eligible items |
| Standard Shipping (US to US by Item) | 5–10 business days | $5.95 for the first item, $3.00 each additional |
| Standard Shipping (From US Warehouse by Weight) | 3–7 business days | Starts at $5.95, increasing by $2 for every additional 4 oz (0.25 lb) up to 1 lb, then by $4 for each additional pound beyond 1 lb. |
| Extended Delivery (Ships from Overseas Warehouse) | 10–20 business days | $14.99 for the first item, $2.00 each additional |
Shipping costs vary by product weight, quantity and origin. Exact rates and delivery estimates are displayed on each product page and confirmed during checkout.
Free Shipping
We offer free standard shipping on select products or during promotional periods. Availability of free shipping will be displayed on the product page and at checkout.
Carriers
We primarily use USPS and UPS for U.S. deliveries. Items shipped from international warehouses may be handled by partner carriers depending on the country of origin.
Import Duties & Taxes
All import duties and taxes for goods imported into the United States are included in the product price. There are no hidden fees or additional charges at checkout.
Tracking & Notifications
Every order is fully trackable. You will receive a tracking number via email once your order ships. If your order ships in multiple packages, each package will have its own tracking number. If you don’t receive a shipping confirmation immediately, your order is still being processed and will arrive within the estimated timeframe shown at checkout.
You can track your shipment anytime using the Track Your Order page on our website.
Order Changes & Cancellations
If you need to modify or cancel an order, please contact our customer support team as soon as possible. Orders can only be canceled before they ship. Once shipped, cancellations are not possible, but you may request a return after the item is delivered.
Contact: support@ibspot.com
Item Not Received
If your tracking number shows “Delivered” but you haven’t received your package:
- Check with your local USPS or UPS office.
- Confirm that the shipping address provided was correct.
- If the issue remains unresolved, contact support@ibspot.com for assistance.
Damaged or Lost Parcels
If your package arrives damaged or fails to arrive, please contact us immediately. For deliveries to P.O. boxes, ibspot is not responsible for damage caused by weather, temperature, or theft.
Customer Support
For any questions about shipping, tracking, or delivery, our customer support team is here to help.
Email: support@ibspot.com
We’re always happy to help.
Please read our policy carefully before making a purchase.
We aim to ensure every customer has a smooth and transparent experience with ibspot.com.
Order Cancellation Policy
Customers may request to cancel an order before it has been shipped.
Once the package has been shipped, cancellations are no longer possible; however, you may still request a return after receiving your order.
How to Request a Cancellation
You can contact us through:
- Email: support@ibspot.com
- Contact Form: Submit a request through our Contact Us page
Please submit your cancellation request as soon as possible after placing the order to allow us to process it before shipment.
Return Policy
We accept returns for most items within 30 days of delivery for a full refund.
To be eligible for a return:
- The item must be unused, in the same condition as received, and in its original packaging.
- A tracking number must be provided to confirm the return shipment.
Non-Returnable Items
Certain products cannot be returned, including:
- Perishable goods (for example, food, flowers, newspapers, magazines)
- Intimate or sanitary goods
- Hazardous materials or flammable liquids/gases
- Gift cards
- Downloadable software
- Some health and personal care items
Partial Refunds (If Applicable)
Partial refunds may be granted in specific situations, such as:
- Books with obvious signs of use
- Opened CDs, DVDs, software, or vinyl records
- Items not in their original condition, damaged, or missing parts not due to our error
- Items returned more than 30 days after delivery
How to Return an Item
To initiate a return, please contact us at support@ibspot.com with your order number and details about the product you wish to return.
Our team will provide you with return instructions and a prepaid return label.
Shipping Cost for Returns
Please contact us before returning any item.
We may provide a return shipping label for your return. If the return is due to our error, such as receiving the wrong item, a damaged item, or a defective product, we will cover the return shipping cost.
If the return is due to the customer’s reason, such as ordering the wrong item, changing your mind, or no longer needing the item, the original shipping fee and the return label fee will be deducted from your refund amount.
If a return is sent back without prior contact or without using our provided label, we cannot be held responsible for any return shipping costs or delivery issues.
For items valued over $75, we recommend using a trackable shipping service or purchasing shipping insurance.
We cannot guarantee that we will receive your returned item if shipped independently.
Refund Processing
Once your return is received and inspected:
- In-store returns are refunded to the original form of payment or issued as a gift card.
- Mail-in returns using our prepaid label are refunded to the original payment method within 3–5 business days after we receive your return.
Please allow:
- 5–7 business days for the return to reach our Returns Center.
- An additional 3–10 business days for your bank to post the refund to your account.
Damages, Issues & Claims
Please inspect your order immediately upon receipt.
If you receive a defective, damaged, or incorrect item, contact us right away at support@ibspot.com.
We’ll evaluate the issue promptly and make it right.
Product Claims
Before purchasing, please review product details carefully.
If there is a problem with your order upon arrival, visit our Support Center or contact us directly to arrange return shipping or replacement.
Exchanges
We do not process direct exchanges.
The fastest way to get what you need is to return the original item and place a new order once your return is accepted.
Return Address
IBSPOT Return Center
15 Sawmill Ln
Dover Plains, NY 12522
United States
Customer Support
Our support team is available 24/7 to assist with cancellations, returns, or general inquiries.
Email: support@ibspot.com
Contact Form: Contact Us page
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