Sherwood RX-4105

Two different receivers share one model number - and the paper trail refuses to reconcile them.

Overview

Here is the problem with the Sherwood RX-4105: the documentation describes two entirely different machines wearing the same badge. One set of sources, including the original research prose that seeded this entry, describes a 1970s analog integrated amplifier with an AM/FM tuner section. It is rated at 35 watts per channel into 8 ohms, with a fully discrete transistor signal path and no ICs anywhere in the audio chain. The other set of sources - retailer listings, product pages, and eBay sales data - describes a modern two-channel digital stereo receiver rated at 100 to 105 watts per channel, with a digital display, a remote control, and 30 station presets. These cannot both be the RX-4105. The model number appears to have been reused, or one of the two descriptions is simply wrong.

The modern receiver is the better documented of the two. Amazon, B&H Photo Video, Newegg, and multiple manual-hosting sites all describe the RX-4105 as an AM/FM stereo receiver with integrated preamplification and amplification, five audio (L/R) inputs, and a remote control. B&H's listing copy calls it "designed and built in-house with attention to bring you quality audio at a budget price," and Amazon's product text calls it "Sherwood's incredibly affordable RX-4105." Packaging for at least one unit carries the label "Made in China Designed in USA."

Power output is shaky even for the modern receiver. Amazon and manua.ls both state 100 watts RMS per channel into 8 ohms. B&H Photo Video and a Magnetic Tape Recorder product page both state 105 watts per channel into 8 ohms. The gap is small enough to be a measurement-condition artifact, but it means no single authoritative number exists. Reportedly 100 to 105 watts per channel into 8 ohms is the honest range. The output impedance is specified at 8 ohms, there are two channels, and the unit weighs 19.7 pounds according to HelpToChoose. No signal-to-noise figure is published anywhere; HelpToChoose lists it as "NA." No USB input. Tuning covers FM and MW (medium wave), and the receiver can store up to 30 station presets.

Despite the conflicting 1975 description in the source material, the RX-4105 is not a vintage analog integrated amplifier. The 35-watt, discrete-transistor, VU-meter, phono-stage version described in that prose has no corroboration from any second source. Every retailer and manual listing for the RX-4105 describes a digital receiver with a remote. The 1975 framing appears to be a misattribution - possibly a different Sherwood model, or an AI-generated hallucination in the original research. The market data backs this up: eBay sold listings for the RX-4105 cluster around $46 - $75, a price band that fits a modern budget receiver, not a restored 1970s analog amplifier.

Key Features

Relay-Controlled A/B Speaker Switching

Newegg's product description highlights the RX-4105's ability to independently select up to two sets of loudspeakers via the supplied remote control. The switching is relay-controlled, and it puts the two speaker pairs in parallel rather than in series. Per Newegg's copy, that maintains each pair's individual sound qualities rather than compromising them through a shared series load. Parallel wiring keeps the impedance low and the damping consistent, though it also means the amplifier has to be comfortable driving the combined load. Sherwood's spec sheet rates the output stage at 8 ohms, and no minimum impedance for simultaneous A+B operation is published.

Digital Display and Front-Panel Control

One eBay product page describes a "digital display showing 106.10, 04, and FM, plus front control buttons." That is a frequency readout, a preset number, and a band indicator, the standard modern receiver layout. There is no analog tuning dial, no VU meter, and no calibrated scale. The front panel is button-driven rather than knob-driven, which is a sharp departure from the 1970s Sherwood look preserved in models like the S-7210 and S-7910.

Five Line-Level Inputs and Integrated Tuner

Amazon's description notes "integrated preamplification and amplification, inputs for numerous audio source components, and advanced radio tuning and station access." manua.ls specifies five audio (L/R) inputs. The tuner covers FM and MW, and the preset memory holds up to 30 stations. No phono input is documented for this receiver. The five inputs appear to be line-level only, which places the RX-4105 in the CD/streaming era rather than the vinyl era.

Supplied Remote Control

The RX-4105 ships with a remote, and Newegg's copy specifically credits the remote with handling the A/B speaker selection. A replacement remote is sold under the model number RC-107, and the manufacturer document lists RC101 as the remote control included with the unit. No programming details, no learning capability, and no universal-remote codes are documented.

Historical Context

No production years for the RX-4105 appear in any source. No original retail price appears in any source. The only dating evidence is circumstantial: the receiver is described as a "digital stereo receiver" in multiple eBay listings, it uses a remote control, and its packaging is labeled "Made in China Designed in USA." Those details place it well after the analog era, but no source in this archive pins a specific year or production span. The 1975 date in the original research prose is contradicted by every retailer and manual listing and should not be treated as reliable.

The RX-4105's only documented relationship to Sherwood's older lineup is the brand name itself. The archive has not found any source establishing lineage, a product-family position, or a successor model. It sits in the catalog as an isolated entry, a budget two-channel receiver with no confirmed place in Sherwood's historical sequence.

Collectibility & Value

The RX-4105 is not a collector's piece, and the market data makes that plain. eBay's October 2026 snapshot shows a high of $105, a median of $63, a low of $30, and a latest sale of $63, with roughly six units moving per month. Over the past twelve months, completed sales ran $46 - $75 with a median of $63 across 40 transactions.

Individual sales confirm the range. A tested unit listed as "105 WPC No Remote" sold for $40. A replacement RC-107 remote sold separately for $14.99. Two complete receivers sold for $74.99 and $67.14. A "parts only / no plug" example and a "new old stock" example have both appeared in listings.

Maintenance documentation is thin. The only troubleshooting guidance found comes from easymanua.ls, which addresses the no-sound scenario generically: check speaker connections, verify the volume isn't set too low, and confirm the MUTE button is not engaged. No common failure modes, no capacitor-replacement guidance, and no spare-parts availability information have surfaced. The archive has not found any source documenting the specific problems these receivers develop with age.

Market Value

┌──────────────────────────────────────────────────────────────────────────┐
│ SHERWOOD RX-4105                                                Nov 2026 │
├──────────────────────────────────────────────────────────────────────────┤
│ High      $105                                    Latest             $63 │
│ Median    $63                                     Trend                — │
│ Low       $30                                     Volume           ~6/mo │
├──────────────────────────────────────────────────────────────────────────┤
│   $200 ┤                                                                 │
│        │                                                                 │
│        │                                                                 │
│   $114 ┤                                                                 │
│        │  .                                                              │
│        │    .  .     .    . .  . .    ..        .    . . .      . ..   ..│
│        │.       .  .          .   .    .  . .  .   .       ..            │
│     $0 ┤                                                                 │
│        ├─────────────────────────────────────────────────────────────────│
│    vol │▂ ▅ ▂  ▂▂  ▂ ▅    ▅ ▂ ▂▂ ▂▂   ▂▅  ▅ ▂  ▂▂  ▂ ▂ █ ▅ ▂▅   ▂ ▅▂   ▂▂│
│        └─────────────────────────────────────────────────────────────────│
│         2026-01                      2026-04                      2026-08│
└──────────────────────────────────────────────────────────────────────────┘