Pioneer SP-BS22-LR (Philharmonic AAM Mod) vs Arendal 1961 Monitor

Last updated: August 24, 2026

Short answer: the Arendal 1961 Monitor for better sound quality, the Pioneer SP-BS22-LR (Philharmonic AAM Mod) for the lower price. The Arendal 1961 Monitor ranks #8 of 74 bookshelf speakers at $1150. The Pioneer SP-BS22-LR (Philharmonic AAM Mod) ranks #51 at $168, $982 cheaper.

What the Pioneer SP-BS22-LR (Philharmonic AAM Mod) offers: This is Dennis Murphy’s “Affordable Accuracy Monitor” (AAM) mod of the discontinued, budget Pioneer SP-BS22-LR: the stock tweeter is swapped for a Peerless BC25TG15 dome and a redesigned 3rd-order crossover is built to match it to the stock 4” woofer. CEA2034 spinorama shows only small variations from a flat on-axis response with some directivity error near the crossover, a marked improvement over the unmodified Pioneer, which the reviewer notes shows much more variation from flat. Distortion at 86dB SPL/1m is reasonably controlled above 200Hz, and tweeter distortion barely rises even at 96dB SPL/1m. Watch for: Some directivity error appears near the crossover frequency. Distortion climbs in the woofer’s range (below 200Hz) at both 86dB and 96dB SPL/1m. Minimum impedance dips to about 5 ohms with a couple of resonance peaks. This is a DIY project, not a finished retail product: Murphy sold ~$168 pre-built pairs for a while but no longer does, so it now requires sourcing a used/discontinued Pioneer SP-BS22-LR pair plus building the crossover and swapping the tweeter yourself. The mod itself is public domain, but there is no current turnkey way to buy this speaker.

What the Arendal 1961 Monitor offers: A physically robust build the reviewer calls “a little bit of a tank,” delivering low compression, low distortion, and overall really good neutrality - one of the reviewer’s top 10 picks under $1,500 across roughly 250 speakers tested. Works well both as home theater mains and as surrounds. Independent ASR Klippel measurements corroborate the low-distortion finding: THD at 86dB SPL/1m stays well below the reviewer’s audibility threshold, and even at 96dB SPL/1m it stays “far better than most bookshelves” thanks to the built-in high-pass filter that protects the woofers. Watch for: Bass rolls off around 70-80Hz, so it cannot be used as full-range mains for music without a subwoofer, and a sub is recommended for home theater use as well. Vertical radiation window is narrow, typical of MTM (mid-tweeter-mid) layouts - tighter than a standard two-way’s roughly ±20° - so a second home theater row sitting above or below the tweeter axis will hear a noticeably different tonal balance. ASR’s CEA2034 measurements show the response is elevated above 2kHz with resonant peaks around 3kHz and 9kHz, leading the reviewer to predict it will “likely sound bright.” Those same resonances show up as lingering ridges in the cumulative spectral decay (waterfall) at 96dB SPL/1m.

Buy the Pioneer SP-BS22-LR (Philharmonic AAM Mod) if the price matters more than sound quality. Buy the Arendal 1961 Monitor if sound quality matters more than the price.

Pioneer SP-BS22-LR (Philharmonic AAM Mod) vs Arendal 1961 Monitor

Specifications Side By Side

Pioneer SP-BS22-LR (Philharmonic AAM Mod) Arendal 1961 Monitor
Price$168$1150
Ranked#51 of 74 in Medium Size Bookshelf Speakers#8 of 74 in Medium Size Bookshelf Speakers
Bass Extension (-3dB)78Hz (measured, Audio Science Review)84Hz (measured, Erin’s Audio Corner)
Bass Extension (-10dB)60Hz (measured, Audio Science Review)60Hz (measured, Erin’s Audio Corner)
Drivers1x 4" curvilinear-cone woofer (stock Pioneer), 1x Peerless BC25TG15 1" silk dome tweeter (replacement)2 x 5.5" woofers, 28mm tweeter
Weight9 lbs / 4.1 kg16 lbs / 7.25 kg each
Sensitivity83dB (2.83V/1m, measured by Audio Science Review)85.9dB (measured average, Erin’s Audio Corner)
Impedance8 ohms nominal (approx. 5 ohms minimum, measured by Audio Science Review)4 ohms nominal (4.1 ohms minimum above 80Hz, measured by Erin’s Audio Corner)
Crossover Frequency3000Hz1500Hz
Dimensions12.6"H x 7.1"W x 8.5"D (320.0 x 180.0 x 215.0 mm)16.6"H x 6.4"W x 5.9"D (421.6 x 162.6 x 149.9 mm)
Woofer Cabinetported, rearsealed

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Prices on this page were last checked August 24, 2026 at 6:53 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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The Two Speakers In Full

Pioneer SP-BS22-LR (Philharmonic AAM Mod): $168 eBay

Pioneer SP-BS22-LR (Philharmonic AAM Mod) ranking card

Pros: This is Dennis Murphy’s “Affordable Accuracy Monitor” (AAM) mod of the discontinued, budget Pioneer SP-BS22-LR: the stock tweeter is swapped for a Peerless BC25TG15 dome and a redesigned 3rd-order crossover is built to match it to the stock 4” woofer. CEA2034 spinorama shows only small variations from a flat on-axis response with some directivity error near the crossover, a marked improvement over the unmodified Pioneer, which the reviewer notes shows much more variation from flat. Distortion at 86dB SPL/1m is reasonably controlled above 200Hz, and tweeter distortion barely rises even at 96dB SPL/1m.

Cons: Some directivity error appears near the crossover frequency. Distortion climbs in the woofer’s range (below 200Hz) at both 86dB and 96dB SPL/1m. Minimum impedance dips to about 5 ohms with a couple of resonance peaks. This is a DIY project, not a finished retail product: Murphy sold ~$168 pre-built pairs for a while but no longer does, so it now requires sourcing a used/discontinued Pioneer SP-BS22-LR pair plus building the crossover and swapping the tweeter yourself. The mod itself is public domain, but there is no current turnkey way to buy this speaker.

Bass Extension (-10dB)60Hz (measured, Audio Science Review)
Bass Extension (-3dB)78Hz (measured, Audio Science Review)
Crossover Frequency3000Hz
Dimensions12.6"H x 7.1"W x 8.5"D (320.0 x 180.0 x 215.0 mm)
Drivers1x 4" curvilinear-cone woofer (stock Pioneer), 1x Peerless BC25TG15 1" silk dome tweeter (replacement)
Impedance8 ohms nominal (approx. 5 ohms minimum, measured by Audio Science Review)
Sensitivity83dB (2.83V/1m, measured by Audio Science Review)
Weight9 lbs / 4.1 kg
Woofer Cabinetported, rear

Arendal 1961 Monitor: $1150 Arendalsound eBay

Arendal 1961 Monitor ranking card

Pros: A physically robust build the reviewer calls “a little bit of a tank,” delivering low compression, low distortion, and overall really good neutrality - one of the reviewer’s top 10 picks under $1,500 across roughly 250 speakers tested. Works well both as home theater mains and as surrounds. Independent ASR Klippel measurements corroborate the low-distortion finding: THD at 86dB SPL/1m stays well below the reviewer’s audibility threshold, and even at 96dB SPL/1m it stays “far better than most bookshelves” thanks to the built-in high-pass filter that protects the woofers.

Cons: Bass rolls off around 70-80Hz, so it cannot be used as full-range mains for music without a subwoofer, and a sub is recommended for home theater use as well. Vertical radiation window is narrow, typical of MTM (mid-tweeter-mid) layouts - tighter than a standard two-way’s roughly ±20° - so a second home theater row sitting above or below the tweeter axis will hear a noticeably different tonal balance. ASR’s CEA2034 measurements show the response is elevated above 2kHz with resonant peaks around 3kHz and 9kHz, leading the reviewer to predict it will “likely sound bright.” Those same resonances show up as lingering ridges in the cumulative spectral decay (waterfall) at 96dB SPL/1m.

Bass Extension (-10dB)60Hz (measured, Erin's Audio Corner)
Bass Extension (-3dB)84Hz (measured, Erin's Audio Corner)
Crossover Frequency1500Hz
Dimensions16.6"H x 6.4"W x 5.9"D (421.6 x 162.6 x 149.9 mm)
Drivers2 x 5.5" woofers, 28mm tweeter
Impedance4 ohms nominal (4.1 ohms minimum above 80Hz, measured by Erin's Audio Corner)
Sensitivity85.9dB (measured average, Erin's Audio Corner)
Weight16 lbs / 7.25 kg each
Woofer Cabinetsealed