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PAXPHIL HS503 CR Bass Guitar String Retainer (Chrome)
The PAXPHIL HS503 CR is a solid retainer bar for three bass guitar strings. It mounts on the headstock and holds the strings down, increasing their break angle over the nut. The bar is 25 mm long and 8 mm tall, with three slots on a 9 mm pitch and two screw holes. The finish is mirror-bright chrome.

🏆 SoundsGood — official Paxphil dealer in Ukraine: genuine gear only, with full warranty and service support.
Three Strings Under One Retainer
A single bar handles three strings at once — wherever several strings run to their tuners at a shallow angle. The strings seat firmly in the nut slots, so open notes ring even and buzz-free. Slots on a 9 mm pitch keep the strings apart, each in its own channel.
Two Screws for a Stable Fit
The bar mounts with two screws: the Ø3 mm holes have an Ø5.5 mm countersink 1 mm deep, so the screw heads sit recessed. Two mounting points keep the bar from twisting under the tension of heavy bass strings.

Solid Body in Chrome
The solid body with a rounded top looks substantial on a bass headstock next to large bass tuners. The chrome plating matches the instrument's chrome hardware.
Specifications
| Type | Bass guitar string retainer bar |
| Model | HS503 CR |
| Strings | 3 |
| Dimensions | 25 × 8 mm (length × height) |
| String Slot Pitch | 9 mm |
| Mounting | 2 screws, Ø3 mm holes with Ø5.5 mm countersink (1 mm deep) |
| Color | Chrome |
| Included | PAXPHIL HS503 CR retainer |
| Country of Manufacture | Korea |
| Warranty | 12 months (electronic and mechanical components) |
What's Included
You get a PAXPHIL HS503 CR retainer; the importer's description does not mention mounting screws, so pick two countersunk screws for the Ø3 mm holes.
Who It's For
The HS503 CR is for those who want a stable low end: the bassist whose open strings buzz at the nut, the tech refitting or repairing a bass headstock, and the owner who wants one sturdy bar instead of several separate retainers.
Frequently Asked Questions
What does the HS503 retainer do?
It holds three bass strings down toward the headstock and increases their break angle over the nut: the strings sit firmly in the slots and open notes ring clean.
What are the dimensions of the HS503 CR?
25 mm long and 8 mm tall, with a 9 mm string slot pitch. Two Ø3 mm screw holes with an Ø5.5 mm countersink, 1 mm deep (per the Paxphil drawing).
Why two mounting screws?
Two mounting points lock the bar in place so it does not twist under the tension of three bass strings and keeps each string straight in its slot.
How does the HS503 differ from the HS032?
The HS503 is a rectangular three-string bar with two mounting screws. The HS032 is a round Ø19 mm two-string disc that mounts with a single screw.
Are screws included?
The importer's description does not mention screws — you get the PAXPHIL HS503 CR retainer. The holes are made for countersunk screws: 3 mm diameter, 5.5 mm countersink.
Is this a genuine Paxphil product, and what is the warranty?
Yes. SoundsGood is an official Paxphil dealer in Ukraine; the warranty is 12 months on electronic and mechanical components.
🚚 Shipping and Payment
🏆 SoundsGood — full warranty and service support
✅ Quality guarantee — genuine instruments only
🏪 Pickup — Kyiv, free
🚚 Nova Poshta / Ukrposhta / Meest — 1–3 days
💳 Installments — PrivatBank, Monobank
🎸 Order the PAXPHIL HS503 CR bass retainer at SoundsGood! ⚡