! \wp_next_scheduled( Cleanup_Integration::START_HOOK ) ) { // This just schedules the cleanup routine cron again. \wp_schedule_single_event( ( \time() + ( \MINUTE_IN_SECONDS * 5 ) ), Cleanup_Integration::START_HOOK ); } return; } } } } from the database, and otherwise considers * whether the old words need to have their weights updated. * * @param int $indexable_id The id of the indexable which needs to have its * old words updated. * @param Prominent_Words[] $old_words An array with prominent words that were already * present in the database for a given indexable. * @param array $words The new prominent words for a given indexable. * * @return array The words that need to be created. */ protected function handle_old_words( $indexable_id, $old_words, $words ) { // Return early if the indexable didn't already have any prominent words associated with it. if ( empty( $old_words ) ) { return $words; } $outdated_stems = []; foreach ( $old_words as $old_word ) { // If an old prominent word is no longer associated with an indexable, // add it to the array with outdated stems, so that at a later step // it can be deleted from the database. if ( ! \array_key_exists( $old_word->stem, $words ) ) { $outdated_stems[] = $old_word->stem; continue; } // If the old word should still be associated with the indexable, // update its weight if that has changed. $this->update_weight_if_changed( $old_word, $words[ $old_word->stem ] ); // Remove the key from the array with the new prominent words. unset( $words[ $old_word->stem ] ); } // Delete all the outdated prominent words in one query. try { $this->prominent_words_repository->delete_by_indexable_id_and_stems( $indexable_id, $outdated_stems ); // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch -- There is nothing to do. } catch ( Exception $exception ) { // Do nothing. } return $words; } /** * Updates the weight of the given prominent word, if the weight has changed significantly. * * @param Prominent_Words $word The prominent word of which to update the weight. * @param float $new_weight The new weight. * * @return void */ protected function update_weight_if_changed( $word, $new_weight ) { if ( \abs( $word->weight - $new_weight ) > 0.1 ) { $word->weight = $new_weight; $word->save(); } } /** * Creates the given words in the database and links them to the indexable with the given id. * * @param int $indexable_id The ID of the indexable. * @param array $words The prominent words to create, as a `'stem'` => weight` map. * * @return void */ protected function create_words( $indexable_id, $words ) { // Return early if there are no new words to add to the database. if ( empty( $words ) ) { return; } $new_models = []; foreach ( $words as $stem => $weight ) { $new_model = $this->prominent_words_repository->query()->create( [ 'indexable_id' => $indexable_id, 'stem' => $stem, 'weight' => $weight, ] ); $new_models[] = $new_model; } try { $this->prominent_words_repository->query()->insert_many( $new_models ); // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedCatch -- There is nothing to do. } catch ( Exception $exception ) { // Do nothing. } } } Rockford Fosgate R2D410 | CarTronics
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Rockford Fosgate R2D410

$89.99

Prime 10" R2 4-Ohm DVC Subwoofer

In stock

SKU: R2D410 Category: Tags: , , Brand:

Description

Car Audio Fanatics wanting big bass can rely on the Prime R2D4-10 subwoofer. This 10” subwoofer handles 250 Watt RMS and the 4-Ohm Dual Voice Coil design lets you to wire them in various configurations.

Car Audio Fanatics who want Rockford Fosgate quality can rely on the Prime Series 10" subwoofers to get the job done, and the Dual Voice Coil provides awesome installation flexibility. These drivers can pump out the bass due to their mica injected polypropylene cone, and their stamp-cast baskets with spider venting – typically reserved for more expensive models – keep the motor running cool! These R2 subwoofers are optimized for sealed and vented enclosures.

12 AWG compression terminals
Anodized aluminum voice coil former
Linear spider with embedded 16 AWG tinsel leads
Mica injected polypropylene cone
Optimized for both sealed and vented enclosures
StampCast basket with integrated spider venting
Integrated PVC trim ring
1 Year Warranty

Magnet Weight (oz)
43 oz. (1.22 kg)
Xmax (mm)
6.5
Size
10"
Shipping Weight
8.8 Lbs. (3.99 kg)
SPL (dB @ 1w/1m)
86.6
Woofer Displacement
0.039 cu. ft. (1.1 Liters)
Cutout Diameter
9.125 in. (232 mm)
Le (mH)
3.9
Nominal Impedance
Dual 4-Ohm
Voice Coil Diameter
2" (51 mm)
Speaker Connector
Dual 12 AWG compression
Mounting Depth
4.319 in. (109 mm)
Fs (Hz)
34.9
Qts
0.53
Qes
0.58
Qms
6.44
Vas (Liters)
38.4
Power Handling (Watts RMS)
250 Watts RMS
500 Watts Max
CEA-2031 Compliant
CEA-2031 Guidelines
Re (Ohms)
7.83
Sd (cm2)
339.8
Subwoofer Type
Standard
Voice Coil Type
Dual Voice Coil
Sealed Box Volume (Vb)
0.59 cu. ft. (16.7 Liters)

Additional information

Weight 11.00 lbs
Dimensions 5.00 × 5.00 × 5.00 in

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